mirror of
https://github.com/node-red/node-red-nodes.git
synced 2023-10-10 13:36:58 +02:00
Merge pull request #37 from maxwellhadley/master
Add hardware nodes for Beaglebone Black: analogue in; discrete in/out; pulse in/out
This commit is contained in:
Nick O'Leary
commit
ec3c36dfdd
@ -69,6 +69,8 @@ Copyright 2013 IBM Corp. under [the Apache 2.0 license](LICENSE).
|
|||||||
|
|
||||||
**101-scanBLE** - Scans for a particular Bluetooth Low Energy (BLE) device.
|
**101-scanBLE** - Scans for a particular Bluetooth Low Energy (BLE) device.
|
||||||
|
|
||||||
|
**145-BBB-hardware** - A collection of analogue & digital input & output nodes for the Beaglebone Black
|
||||||
|
|
||||||
### IO
|
### IO
|
||||||
|
|
||||||
**26-rawserial** - Only really needed for Windows boxes without serialport npm module installed.
|
**26-rawserial** - Only really needed for Windows boxes without serialport npm module installed.
|
||||||
|
|||||||
638
hardware/BBB/145-BBB-hardware.html
Normal file
638
hardware/BBB/145-BBB-hardware.html
Normal file
@ -0,0 +1,638 @@
|
|||||||
|
<!--
|
||||||
|
Copyright 2014 Maxwell R Hadley
|
||||||
|
|
||||||
|
Licensed under the Apache License, Version 2.0 (the "License");
|
||||||
|
you may not use this file except in compliance with the License.
|
||||||
|
You may obtain a copy of the License at
|
||||||
|
|
||||||
|
http://www.apache.org/licenses/LICENSE-2.0
|
||||||
|
|
||||||
|
Unless required by applicable law or agreed to in writing, software
|
||||||
|
distributed under the License is distributed on an "AS IS" BASIS,
|
||||||
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||||
|
See the License for the specific language governing permissions and
|
||||||
|
limitations under the License.
|
||||||
|
-->
|
||||||
|
|
||||||
|
<!-- Edit dialog for bbb-analogue-in -->
|
||||||
|
<script type="text/x-red" data-template-name="bbb-analogue-in">
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-pin"><i class="icon-asterisk"></i>Input pin</label>
|
||||||
|
<select type="text" id="node-input-pin" style="width: 150px;">
|
||||||
|
<option value="">select pin</option>
|
||||||
|
<option value="P9_39">AIN0 (P9 pin 39)</option>
|
||||||
|
<option value="P9_40">AIN1 (P9 pin 40)</option>
|
||||||
|
<option value="P9_37">AIN2 (P9 pin 37)</option>
|
||||||
|
<option value="P9_38">AIN3 (P9 pin 38)</option>
|
||||||
|
<option value="P9_33">AIN4 (P9 pin 33)</option>
|
||||||
|
<option value="P9_36">AIN5 (P9 pin 36)</option>
|
||||||
|
<option value="P9_35">AIN6 (P9 pin 35)</option>
|
||||||
|
</select>
|
||||||
|
</div>
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-topic"><i class="icon-tasks"></i> Topic</label>
|
||||||
|
<input type="text" id="node-input-topic" placeholder="Topic">
|
||||||
|
</div>
|
||||||
|
<div class="form-row">
|
||||||
|
Input Scaling
|
||||||
|
</div>
|
||||||
|
<div class="form-row">
|
||||||
|
<div id="node-input-breakpoint-container-div" style="border-radius: 5px; height: 132px; padding: 5px; border: 1px solid #ccc; overflow-y:scroll;">
|
||||||
|
<ol id="node-input-breakpoint-container" style=" list-style-type:none; margin: 0;">
|
||||||
|
</ol>
|
||||||
|
</div>
|
||||||
|
</div>
|
||||||
|
<div class="form-row">
|
||||||
|
<a href="#" class="btn btn-mini" id="node-input-add-breakpoint" style="margin-top: 4px;"><i class="icon-plus"></i> Add Breakpoint</a>
|
||||||
|
<span style="float:right; margin-top:4px">
|
||||||
|
<input type="checkbox" id="node-input-averaging" style="display:inline-block; width:auto; vertical-align:top;"> Averaging
|
||||||
|
</span>
|
||||||
|
</div>
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-name"><i class="icon-tag"></i> Name</label>
|
||||||
|
<input type="text" id="node-input-name" placeholder="Name">
|
||||||
|
</div>
|
||||||
|
</script>
|
||||||
|
|
||||||
|
<!-- Help text for bbb-analogue-in -->
|
||||||
|
<script type="text/x-red" data-help-name="bbb-analogue-in">
|
||||||
|
<p>
|
||||||
|
Analogue input for the Beaglebone Black. Reads an analogue pin when triggered by
|
||||||
|
a message.
|
||||||
|
</p>
|
||||||
|
<p>The output message topic is the node topic: the output message value is the
|
||||||
|
scaled analogue input or NaN if a read error occurs.
|
||||||
|
</p>
|
||||||
|
<p>
|
||||||
|
Simple linear scaling is defined by setting the output values required for input
|
||||||
|
values of 0 and 1. You can apply more complicated scaling, e.g. for sensor linearisation,
|
||||||
|
by defining breakpoints at intermediate input values, with the desired output for
|
||||||
|
each. Values between breakpoints are linearly interpolated.
|
||||||
|
</p>
|
||||||
|
<p>
|
||||||
|
To reduce the effect of noise, enable averaging. This will read the input pin
|
||||||
|
voltage ten times in rapid succession for each input message and output the mean value.
|
||||||
|
</p>
|
||||||
|
</script>
|
||||||
|
|
||||||
|
<!-- Register bbb-analogue-in node -->
|
||||||
|
<script type="text/javascript">
|
||||||
|
RED.nodes.registerType('bbb-analogue-in', {
|
||||||
|
category: 'advanced-input', // the palette category
|
||||||
|
color:"#de7224",
|
||||||
|
defaults: { // defines the editable properties of the node
|
||||||
|
pin: { value:"", required:true },
|
||||||
|
topic: { value:"" },
|
||||||
|
breakpoints: { value:[{input:0.0, output:0.0, mutable:false}, {input:1.0, output:1.0, mutable:false}] },
|
||||||
|
averaging: { value:false, required:true },
|
||||||
|
name: { value:"" }
|
||||||
|
},
|
||||||
|
inputs:1, // set the number of inputs - only 0 or 1
|
||||||
|
outputs:1, // set the number of outputs - 0 to n
|
||||||
|
icon: "BBB.png", // set the icon (held in public/icons)
|
||||||
|
label: function() { // sets the default label contents
|
||||||
|
return this.name || "bbb-analogue-in: " + this.pin;
|
||||||
|
},
|
||||||
|
labelStyle: function() { // sets the class to apply to the label
|
||||||
|
return this.name ? "node_label_italic" : "";
|
||||||
|
},
|
||||||
|
oneditprepare: function () {
|
||||||
|
function generateBreakpoint(breakpoint, insert) {
|
||||||
|
var container = $('<li/>', {style:"margin:0; padding:4px; padding-left 10px;"});
|
||||||
|
var row = $('<div/>').appendTo(container);
|
||||||
|
var breakpointField = $('<span/>').appendTo(row);
|
||||||
|
var inputValueField = $('<input/>',
|
||||||
|
{disabled:"", class:"node-input-breakpoint-input-value", type:"text", style:"margin-left:5px; margin-right:2px; width:36%;"}).appendTo(breakpointField);
|
||||||
|
if (breakpoint.mutable) {
|
||||||
|
inputValueField.removeAttr("disabled");
|
||||||
|
}
|
||||||
|
breakpointField.append(" => ");
|
||||||
|
var outputValueField = $('<input/>',
|
||||||
|
{class:"node-input-breakpoint-output-value", type:"text", style:"margin-left:0px; width:36%;"}).appendTo(breakpointField);
|
||||||
|
var finalSpan = $('<span/>', {style:"float:right; margin-top:3px; margin-right:10px;"}).appendTo(row);
|
||||||
|
var mutableFlag = $('<span/>', {class:"node-input-breakpoint-mutable", style:"display:hide;"}).appendTo(row);
|
||||||
|
if (breakpoint.mutable) {
|
||||||
|
mutableFlag.attr("mutable", "true");
|
||||||
|
var deleteButton = $('<a/>', {href:"#", class:"btn btn-mini", style:"margin-left: 5px;"}).appendTo(finalSpan);
|
||||||
|
$('<i/>', {class:"icon-remove"}).appendTo(deleteButton);
|
||||||
|
|
||||||
|
deleteButton.click(function() {
|
||||||
|
container.css({"background":"#fee"});
|
||||||
|
container.fadeOut(300, function() {
|
||||||
|
$(this).remove();
|
||||||
|
});
|
||||||
|
});
|
||||||
|
} else {
|
||||||
|
mutableFlag.attr("mutable", "false");
|
||||||
|
}
|
||||||
|
if (insert === true) {
|
||||||
|
var last = $("#node-input-breakpoint-container").children().last();
|
||||||
|
var prev = last.prev();
|
||||||
|
inputValueField.val((Number(last.find(".node-input-breakpoint-input-value").val()) +
|
||||||
|
Number(prev.find(".node-input-breakpoint-input-value").val()))/2);
|
||||||
|
outputValueField.val((Number(last.find(".node-input-breakpoint-output-value").val()) +
|
||||||
|
Number(prev.find(".node-input-breakpoint-output-value").val()))/2);
|
||||||
|
last.before(container);
|
||||||
|
} else {
|
||||||
|
inputValueField.val(breakpoint.input);
|
||||||
|
outputValueField.val(breakpoint.output);
|
||||||
|
$("#node-input-breakpoint-container").append(container);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
$("#node-input-add-breakpoint").click(function () {
|
||||||
|
generateBreakpoint({input:0, output:0, mutable:true}, true);
|
||||||
|
$("#node-input-breakpoint-container-div").scrollTop($("#node-input-breakpoint-container-div").get(0).scrollHeight);
|
||||||
|
});
|
||||||
|
|
||||||
|
for (var i = 0; i < this.breakpoints.length; i++) {
|
||||||
|
var breakpoint = this.breakpoints[i];
|
||||||
|
generateBreakpoint(breakpoint, false);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Handle resizing the Input Scaling div when the dialog is resized - this isn't quite right!
|
||||||
|
function switchDialogResize(ev, ui) {
|
||||||
|
$("#node-input-breakpoint-container-div").css("height", (ui.size.height - 299) + "px");
|
||||||
|
};
|
||||||
|
|
||||||
|
$("#dialog").on("dialogresize", switchDialogResize);
|
||||||
|
$("#dialog").one("dialogopen", function (ev) {
|
||||||
|
var size = $("#dialog").dialog('option', 'sizeCache-switch');
|
||||||
|
if (size) {
|
||||||
|
switchDialogResize(null, { size:size });
|
||||||
|
}
|
||||||
|
});
|
||||||
|
$("#dialog").one("dialogclose", function(ev, ui) {
|
||||||
|
$("#dialog").off("dialogresize", switchDialogResize);
|
||||||
|
});
|
||||||
|
},
|
||||||
|
oneditsave: function() {
|
||||||
|
var breakpoints = $("#node-input-breakpoint-container").children();
|
||||||
|
var node = this;
|
||||||
|
node.breakpoints = [];
|
||||||
|
breakpoints.each(function (i) {
|
||||||
|
var breakpoint = $(this);
|
||||||
|
var r = {};
|
||||||
|
r.input = Number(breakpoint.find(".node-input-breakpoint-input-value").val());
|
||||||
|
r.output = Number(breakpoint.find(".node-input-breakpoint-output-value").val());
|
||||||
|
r.mutable = breakpoint.find(".node-input-breakpoint-mutable").attr("mutable") == "true";
|
||||||
|
node.breakpoints.push(r);
|
||||||
|
});
|
||||||
|
node.breakpoints = node.breakpoints.sort(function (a, b) { return a.input - b.input; });
|
||||||
|
}
|
||||||
|
});
|
||||||
|
</script>
|
||||||
|
|
||||||
|
<!-- Edit dialog for bbb-discrete-in -->
|
||||||
|
<script type="text/x-red" data-template-name="bbb-discrete-in">
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-pin"><i class="icon-asterisk"></i>Input pin</label>
|
||||||
|
<select type="text" id="node-input-pin" style="width: 200px;">
|
||||||
|
<option value="">select pin</option>
|
||||||
|
<option value="P8_7">GPIO2_2 (P8 pin 7)</option>
|
||||||
|
<option value="P8_8">GPIO2_3 (P8 pin 8)</option>
|
||||||
|
<option value="P8_9">GPIO2_5 (P8 pin 9)</option>
|
||||||
|
<option value="P8_10">GPIO2_4 (P8 pin 10)</option>
|
||||||
|
<option value="P8_11">GPIO1_13 (P8 pin 11)</option>
|
||||||
|
<option value="P8_12">GPIO1_12 (P8 pin 12)</option>
|
||||||
|
<option value="P8_13">GPIO0_23 (P8 pin 13)</option>
|
||||||
|
<option value="P8_14">GPIO0_26 (P8 pin 14)</option>
|
||||||
|
<option value="P8_15">GPIO1_15 (P8 pin 15)</option>
|
||||||
|
<option value="P8_16">GPIO1_14 (P8 pin 16)</option>
|
||||||
|
<option value="P8_17">GPIO0_27 (P8 pin 17)</option>
|
||||||
|
<option value="P8_18">GPIO2_1 (P8 pin 18)</option>
|
||||||
|
<option value="P8_19">GPIO0_22 (P8 pin 19)</option>
|
||||||
|
<option value="P8_26">GPIO1_29 (P8 pin 26)</option>
|
||||||
|
<option value="P9_11">GPIO0_30 (P9 pin 11)</option>
|
||||||
|
<option value="P9_12">GPIO1_28 (P9 pin 12)</option>
|
||||||
|
<option value="P9_13">GPIO0_31 (P9 pin 13)</option>
|
||||||
|
<option value="P9_14">GPIO1_18 (P9 pin 14)</option>
|
||||||
|
<option value="P9_15">GPIO1_16 (P9 pin 15)</option>
|
||||||
|
<option value="P9_16">GPIO1_19 (P9 pin 16)</option>
|
||||||
|
<option value="P9_17">GPIO0_5 (P9 pin 17)</option>
|
||||||
|
<option value="P9_18">GPIO0_4 (P9 pin 18)</option>
|
||||||
|
<option value="P9_21">GPIO0_3 (P9 pin 21)</option>
|
||||||
|
<option value="P9_22">GPIO0_2 (P9 pin 22)</option>
|
||||||
|
<option value="P9_23">GPIO1_17 (P9 pin 23)</option>
|
||||||
|
<option value="P9_24">GPIO0_15 (P9 pin 24)</option>
|
||||||
|
<option value="P9_26">GPIO0_14 (P9 pin 26)</option>
|
||||||
|
<option value="P9_27">GPIO3_19 (P9 pin 27)</option>
|
||||||
|
<option value="P9_30">GPIO3_16 (P9 pin 30)</option>
|
||||||
|
<option value="P9_41">GPIO0_20 (P9 pin 41)</option>
|
||||||
|
<option value="P9_42">GPIO0_7 (P9 pin 42)</option>
|
||||||
|
</select>
|
||||||
|
</div>
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-activeLow">Active low</label>
|
||||||
|
<input type="checkbox" id="node-input-activeLow" style="display:inline-block; width:auto; vertical-align:top;">
|
||||||
|
</div>
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-debounce">Debounce</label>
|
||||||
|
<input type="checkbox" id="node-input-debounce" style="display:inline-block; width:auto; vertical-align:top;">
|
||||||
|
</div>
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-outputOn">Output on</label>
|
||||||
|
<select type="text" id="node-input-outputOn" style="width: 200px;">
|
||||||
|
<option value="both">both changes</option>
|
||||||
|
<option value="rising">0 to 1 change only</option>
|
||||||
|
<option value="falling">1 to 0 change only</option>
|
||||||
|
</select>
|
||||||
|
</div>
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-updateInterval"><i class="icon-repeat"></i> Update at</label>
|
||||||
|
<input id="node-input-updateInterval" type="text" style="width: 65px">
|
||||||
|
<label>sec intervals</label>
|
||||||
|
</div>
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-topic"><i class="icon-tasks"></i> Topic</label>
|
||||||
|
<input type="text" id="node-input-topic" placeholder="Topic">
|
||||||
|
</div>
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-name"><i class="icon-tag"></i> Name</label>
|
||||||
|
<input type="text" id="node-input-name" placeholder="Name">
|
||||||
|
</div>
|
||||||
|
</script>
|
||||||
|
|
||||||
|
<!-- Help text for bbb-discrete-in -->
|
||||||
|
<script type="text/x-red" data-help-name="bbb-discrete-in">
|
||||||
|
<p>
|
||||||
|
Discrete input for the Beaglebone Black. Sends a message with payload 0 or 1 on the
|
||||||
|
first output when the pin changes state, and logs the total time in the active state.
|
||||||
|
</p>
|
||||||
|
<p>
|
||||||
|
Sends a message with a payload of the current total active time
|
||||||
|
(in seconds) on the second output at selectable intervals. An input message with topic 'load'
|
||||||
|
and a numeric payload will set the total active time to that value: any other input message
|
||||||
|
will reset it to zero.
|
||||||
|
</p>
|
||||||
|
<p>
|
||||||
|
The active state may be set to be high or low: this only affects the calculation
|
||||||
|
of the active time, not the pin state value sent on the first output.
|
||||||
|
</p>
|
||||||
|
<p>
|
||||||
|
The pin state messages may be generated for both directions of change, or for just 0 to 1
|
||||||
|
or just 1 to 0 changes. This is useful to generate a single message from a button
|
||||||
|
press. When using buttons or switches, enable debouncing to improve reliability.
|
||||||
|
</p>
|
||||||
|
</script>
|
||||||
|
|
||||||
|
<!-- Register bbb-discrete-in node -->
|
||||||
|
<script type="text/javascript">
|
||||||
|
RED.nodes.registerType('bbb-discrete-in', {
|
||||||
|
category: 'advanced-input', // the palette category
|
||||||
|
color:"#de7224",
|
||||||
|
defaults: { // defines the editable properties of the node
|
||||||
|
pin: { value:"", required:true },
|
||||||
|
activeLow: { value:false, required:true },
|
||||||
|
debounce: { value:false, required:true },
|
||||||
|
outputOn: { value:"both", required:true },
|
||||||
|
updateInterval: { value:60, required:true, validate:RED.validators.number() },
|
||||||
|
topic: { value:"" },
|
||||||
|
name: { value:"" }
|
||||||
|
},
|
||||||
|
inputs:1, // set the number of inputs - only 0 or 1
|
||||||
|
outputs:2, // set the number of outputs - 0 to n
|
||||||
|
icon: "BBB.png", // set the icon (held in public/icons)
|
||||||
|
label: function() { // sets the default label contents
|
||||||
|
return this.name || "bbb-discrete-in: " + this.pin;
|
||||||
|
},
|
||||||
|
labelStyle: function() { // sets the class to apply to the label
|
||||||
|
return this.name ? "node_label_italic" : "";
|
||||||
|
}
|
||||||
|
});
|
||||||
|
</script>
|
||||||
|
|
||||||
|
<!-- Edit dialog for bbb-pulse-in -->
|
||||||
|
<script type="text/x-red" data-template-name="bbb-pulse-in">
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-pin"><i class="icon-asterisk"></i>Input pin</label>
|
||||||
|
<select type="text" id="node-input-pin" style="width: 200px;">
|
||||||
|
<option value="">select pin</option>
|
||||||
|
<option value="P8_7">GPIO2_2 (P8 pin 7)</option>
|
||||||
|
<option value="P8_8">GPIO2_3 (P8 pin 8)</option>
|
||||||
|
<option value="P8_9">GPIO2_5 (P8 pin 9)</option>
|
||||||
|
<option value="P8_10">GPIO2_4 (P8 pin 10)</option>
|
||||||
|
<option value="P8_11">GPIO1_13 (P8 pin 11)</option>
|
||||||
|
<option value="P8_12">GPIO1_12 (P8 pin 12)</option>
|
||||||
|
<option value="P8_13">GPIO0_23 (P8 pin 13)</option>
|
||||||
|
<option value="P8_14">GPIO0_26 (P8 pin 14)</option>
|
||||||
|
<option value="P8_15">GPIO1_15 (P8 pin 15)</option>
|
||||||
|
<option value="P8_16">GPIO1_14 (P8 pin 16)</option>
|
||||||
|
<option value="P8_17">GPIO0_27 (P8 pin 17)</option>
|
||||||
|
<option value="P8_18">GPIO2_1 (P8 pin 18)</option>
|
||||||
|
<option value="P8_19">GPIO0_22 (P8 pin 19)</option>
|
||||||
|
<option value="P8_26">GPIO1_29 (P8 pin 26)</option>
|
||||||
|
<option value="P9_11">GPIO0_30 (P9 pin 11)</option>
|
||||||
|
<option value="P9_12">GPIO1_28 (P9 pin 12)</option>
|
||||||
|
<option value="P9_13">GPIO0_31 (P9 pin 13)</option>
|
||||||
|
<option value="P9_14">GPIO1_18 (P9 pin 14)</option>
|
||||||
|
<option value="P9_15">GPIO1_16 (P9 pin 15)</option>
|
||||||
|
<option value="P9_16">GPIO1_19 (P9 pin 16)</option>
|
||||||
|
<option value="P9_17">GPIO0_5 (P9 pin 17)</option>
|
||||||
|
<option value="P9_18">GPIO0_4 (P9 pin 18)</option>
|
||||||
|
<option value="P9_21">GPIO0_3 (P9 pin 21)</option>
|
||||||
|
<option value="P9_22">GPIO0_2 (P9 pin 22)</option>
|
||||||
|
<option value="P9_23">GPIO1_17 (P9 pin 23)</option>
|
||||||
|
<option value="P9_24">GPIO0_15 (P9 pin 24)</option>
|
||||||
|
<option value="P9_26">GPIO0_14 (P9 pin 26)</option>
|
||||||
|
<option value="P9_27">GPIO3_19 (P9 pin 27)</option>
|
||||||
|
<option value="P9_30">GPIO3_16 (P9 pin 30)</option>
|
||||||
|
<option value="P9_41">GPIO0_20 (P9 pin 41)</option>
|
||||||
|
<option value="P9_42">GPIO0_7 (P9 pin 42)</option>
|
||||||
|
</select>
|
||||||
|
</div>
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-countType">Count</label>
|
||||||
|
<select type="text" id="node-input-countType" style="width: 100px;">
|
||||||
|
<option value="pulse">pulses</option>
|
||||||
|
<option value="edge">edges</option>
|
||||||
|
</select>
|
||||||
|
</div>
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-countUnit">Scaling</label>
|
||||||
|
<input id="node-input-countUnit" type="text" style="width: 65px">
|
||||||
|
<label style="width: 60%"> units per count</label>
|
||||||
|
</div>
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-countRate">Rate</label>
|
||||||
|
<input id="node-input-countRate" type="text" style="width: 65px">
|
||||||
|
<label style="width: 60%"> units per count/second</label>
|
||||||
|
</div>
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-updateInterval"><i class="icon-repeat"></i> Update at</label>
|
||||||
|
<input id="node-input-updateInterval" type="text" style="width: 65px">
|
||||||
|
<label>sec intervals</label>
|
||||||
|
</div>
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-topic"><i class="icon-tasks"></i> Topic</label>
|
||||||
|
<input type="text" id="node-input-topic" placeholder="Topic">
|
||||||
|
</div>
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-name"><i class="icon-tag"></i> Name</label>
|
||||||
|
<input type="text" id="node-input-name" placeholder="Name">
|
||||||
|
</div>
|
||||||
|
</script>
|
||||||
|
|
||||||
|
<!-- Help text for bbb-pulse-in -->
|
||||||
|
<script type="text/x-red" data-help-name="bbb-pulse-in">
|
||||||
|
<p>
|
||||||
|
Pulse input for the Beaglebone Black. Counts input pulses or pulse edges: outputs
|
||||||
|
total counts and the rate of counts/sec, with scaling.
|
||||||
|
</p>
|
||||||
|
<p>
|
||||||
|
Sends the total count message on the first output, and the current count
|
||||||
|
rate message on the second output, at the chosen interval. An input message with topic 'load'
|
||||||
|
and a numeric payload will set the total count to that value (no scaling is applied):
|
||||||
|
any other input message will reset it to zero.
|
||||||
|
</p>
|
||||||
|
</script>
|
||||||
|
|
||||||
|
<!-- Register bbb-pulse-in node -->
|
||||||
|
<script type="text/javascript">
|
||||||
|
RED.nodes.registerType('bbb-pulse-in', {
|
||||||
|
category: 'advanced-input', // the palette category
|
||||||
|
color:"#de7224",
|
||||||
|
defaults: { // defines the editable properties of the node
|
||||||
|
pin: { value:"", required:true },
|
||||||
|
countType: { value:"pulse", required:true },
|
||||||
|
countUnit: { value:1, required:true, validate:RED.validators.number() },
|
||||||
|
countRate: { value:1, required:true, validate:RED.validators.number() },
|
||||||
|
updateInterval: { value:2, required:true, validate:RED.validators.number() },
|
||||||
|
topic: { value:"" },
|
||||||
|
name: { value:"" }
|
||||||
|
},
|
||||||
|
inputs:1, // set the number of inputs - only 0 or 1
|
||||||
|
outputs:2, // set the number of outputs - 0 to n
|
||||||
|
icon: "BBB.png", // set the icon (held in public/icons)
|
||||||
|
label: function() { // sets the default label contents
|
||||||
|
return this.name || "bbb-pulse-in: " + this.pin;
|
||||||
|
},
|
||||||
|
labelStyle: function() { // sets the class to apply to the label
|
||||||
|
return this.name ? "node_label_italic" : "";
|
||||||
|
}
|
||||||
|
});
|
||||||
|
</script>
|
||||||
|
|
||||||
|
<!-- Edit dialog for bbb-discrete-out -->
|
||||||
|
<script type="text/x-red" data-template-name="bbb-discrete-out">
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-pin"><i class="icon-asterisk"></i>Output pin</label>
|
||||||
|
<select type="text" id="node-input-pin" style="width: 200px;">
|
||||||
|
<option value="">select pin</option>
|
||||||
|
<option value="P8_7">GPIO2_2 (P8 pin 7)</option>
|
||||||
|
<option value="P8_8">GPIO2_3 (P8 pin 8)</option>
|
||||||
|
<option value="P8_9">GPIO2_5 (P8 pin 9)</option>
|
||||||
|
<option value="P8_10">GPIO2_4 (P8 pin 10)</option>
|
||||||
|
<option value="P8_11">GPIO1_13 (P8 pin 11)</option>
|
||||||
|
<option value="P8_12">GPIO1_12 (P8 pin 12)</option>
|
||||||
|
<option value="P8_13">GPIO0_23 (P8 pin 13)</option>
|
||||||
|
<option value="P8_14">GPIO0_26 (P8 pin 14)</option>
|
||||||
|
<option value="P8_15">GPIO1_15 (P8 pin 15)</option>
|
||||||
|
<option value="P8_16">GPIO1_14 (P8 pin 16)</option>
|
||||||
|
<option value="P8_17">GPIO0_27 (P8 pin 17)</option>
|
||||||
|
<option value="P8_18">GPIO2_1 (P8 pin 18)</option>
|
||||||
|
<option value="P8_19">GPIO0_22 (P8 pin 19)</option>
|
||||||
|
<option value="P8_26">GPIO1_29 (P8 pin 26)</option>
|
||||||
|
<option value="P9_11">GPIO0_30 (P9 pin 11)</option>
|
||||||
|
<option value="P9_12">GPIO1_28 (P9 pin 12)</option>
|
||||||
|
<option value="P9_13">GPIO0_31 (P9 pin 13)</option>
|
||||||
|
<option value="P9_14">GPIO1_18 (P9 pin 14)</option>
|
||||||
|
<option value="P9_15">GPIO1_16 (P9 pin 15)</option>
|
||||||
|
<option value="P9_16">GPIO1_19 (P9 pin 16)</option>
|
||||||
|
<option value="P9_17">GPIO0_5 (P9 pin 17)</option>
|
||||||
|
<option value="P9_18">GPIO0_4 (P9 pin 18)</option>
|
||||||
|
<option value="P9_21">GPIO0_3 (P9 pin 21)</option>
|
||||||
|
<option value="P9_22">GPIO0_2 (P9 pin 22)</option>
|
||||||
|
<option value="P9_23">GPIO1_17 (P9 pin 23)</option>
|
||||||
|
<option value="P9_24">GPIO0_15 (P9 pin 24)</option>
|
||||||
|
<option value="P9_26">GPIO0_14 (P9 pin 26)</option>
|
||||||
|
<option value="P9_27">GPIO3_19 (P9 pin 27)</option>
|
||||||
|
<option value="P9_30">GPIO3_16 (P9 pin 30)</option>
|
||||||
|
<option value="P9_41">GPIO0_20 (P9 pin 41)</option>
|
||||||
|
<option value="P9_42">GPIO0_7 (P9 pin 42)</option>
|
||||||
|
<option value="USR0">User LED 0</option>
|
||||||
|
<option value="USR1">User LED 1</option>
|
||||||
|
<option value="USR2">User LED 2</option>
|
||||||
|
<option value="USR3">User LED 3</option>
|
||||||
|
</select>
|
||||||
|
</div>
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-inverting">Inverting</label>
|
||||||
|
<input type="checkbox" id="node-input-inverting" style="display:inline-block; width:auto; vertical-align:top;">
|
||||||
|
</div>
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-toggle">Toggle state</label>
|
||||||
|
<input type="checkbox" id="node-input-toggle" style="display:inline-block; width:auto; vertical-align:top;">
|
||||||
|
</div>
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-defaultState">Startup as</label>
|
||||||
|
<select type="text" id="node-input-defaultState" style="width: 80px;">
|
||||||
|
<option value="0">0</option>
|
||||||
|
<option value="1">1</option>
|
||||||
|
</select>
|
||||||
|
</div>
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-name"><i class="icon-tag"></i> Name</label>
|
||||||
|
<input type="text" id="node-input-name" placeholder="Name">
|
||||||
|
</div>
|
||||||
|
</script>
|
||||||
|
|
||||||
|
<!-- Help text for bbb-discrete-out -->
|
||||||
|
<script type="text/x-red" data-help-name="bbb-discrete-out">
|
||||||
|
<p>
|
||||||
|
Directly control an output pin on the Beaglebone Black.
|
||||||
|
</p>
|
||||||
|
<p>
|
||||||
|
Sets the output pin high or low depending on the payload of the input message. Numeric
|
||||||
|
payloads > 0.5 are 'high' (1), payloads <= 0.5 are 'low' (0). Other payloads which
|
||||||
|
evaluate to true are 'high', if not then 'low'. Selecting the Inverting checkbox will
|
||||||
|
switch the sense of the pin output.
|
||||||
|
</p>
|
||||||
|
<p>
|
||||||
|
If the Toggle state checkbox is checked, the message content is ignored: successive
|
||||||
|
messages cause the pin to toggle between 0 and 1.
|
||||||
|
</P>
|
||||||
|
<p>
|
||||||
|
The pin will be initially set to the given Startup state until the first message arrives:
|
||||||
|
the Inverting property is not applied to this value.
|
||||||
|
</p>
|
||||||
|
</script>
|
||||||
|
|
||||||
|
<!-- Register bbb-discrete-out node -->
|
||||||
|
<script type="text/javascript">
|
||||||
|
RED.nodes.registerType('bbb-discrete-out', {
|
||||||
|
category: 'advanced-input', // the palette category
|
||||||
|
color:"#de7224",
|
||||||
|
defaults: { // defines the editable properties of the node
|
||||||
|
pin: { value:"", required:true },
|
||||||
|
inverting: { value:false, required:true },
|
||||||
|
toggle: { value:false, required:true },
|
||||||
|
defaultState: { value:"0", required:true },
|
||||||
|
name: { value:"" }
|
||||||
|
},
|
||||||
|
inputs:1, // set the number of inputs - only 0 or 1
|
||||||
|
outputs:1, // set the number of outputs - 0 to n
|
||||||
|
icon: "BBB.png", // set the icon (held in public/icons)
|
||||||
|
align:"right",
|
||||||
|
label: function() { // sets the default label contents
|
||||||
|
return this.name || "bbb-discrete-out: " + this.pin;
|
||||||
|
},
|
||||||
|
labelStyle: function() { // sets the class to apply to the label
|
||||||
|
return this.name ? "node_label_italic" : "";
|
||||||
|
}
|
||||||
|
});
|
||||||
|
</script>
|
||||||
|
|
||||||
|
<!-- Edit dialog for bbb-pulse-out -->
|
||||||
|
<script type="text/x-red" data-template-name="bbb-pulse-out">
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-pin"><i class="icon-asterisk"></i>Output pin</label>
|
||||||
|
<select type="text" id="node-input-pin" style="width: 200px;">
|
||||||
|
<option value="">select pin</option>
|
||||||
|
<option value="P8_7">GPIO2_2 (P8 pin 7)</option>
|
||||||
|
<option value="P8_8">GPIO2_3 (P8 pin 8)</option>
|
||||||
|
<option value="P8_9">GPIO2_5 (P8 pin 9)</option>
|
||||||
|
<option value="P8_10">GPIO2_4 (P8 pin 10)</option>
|
||||||
|
<option value="P8_11">GPIO1_13 (P8 pin 11)</option>
|
||||||
|
<option value="P8_12">GPIO1_12 (P8 pin 12)</option>
|
||||||
|
<option value="P8_13">GPIO0_23 (P8 pin 13)</option>
|
||||||
|
<option value="P8_14">GPIO0_26 (P8 pin 14)</option>
|
||||||
|
<option value="P8_15">GPIO1_15 (P8 pin 15)</option>
|
||||||
|
<option value="P8_16">GPIO1_14 (P8 pin 16)</option>
|
||||||
|
<option value="P8_17">GPIO0_27 (P8 pin 17)</option>
|
||||||
|
<option value="P8_18">GPIO2_1 (P8 pin 18)</option>
|
||||||
|
<option value="P8_19">GPIO0_22 (P8 pin 19)</option>
|
||||||
|
<option value="P8_26">GPIO1_29 (P8 pin 26)</option>
|
||||||
|
<option value="P9_11">GPIO0_30 (P9 pin 11)</option>
|
||||||
|
<option value="P9_12">GPIO1_28 (P9 pin 12)</option>
|
||||||
|
<option value="P9_13">GPIO0_31 (P9 pin 13)</option>
|
||||||
|
<option value="P9_14">GPIO1_18 (P9 pin 14)</option>
|
||||||
|
<option value="P9_15">GPIO1_16 (P9 pin 15)</option>
|
||||||
|
<option value="P9_16">GPIO1_19 (P9 pin 16)</option>
|
||||||
|
<option value="P9_17">GPIO0_5 (P9 pin 17)</option>
|
||||||
|
<option value="P9_18">GPIO0_4 (P9 pin 18)</option>
|
||||||
|
<option value="P9_21">GPIO0_3 (P9 pin 21)</option>
|
||||||
|
<option value="P9_22">GPIO0_2 (P9 pin 22)</option>
|
||||||
|
<option value="P9_23">GPIO1_17 (P9 pin 23)</option>
|
||||||
|
<option value="P9_24">GPIO0_15 (P9 pin 24)</option>
|
||||||
|
<option value="P9_26">GPIO0_14 (P9 pin 26)</option>
|
||||||
|
<option value="P9_27">GPIO3_19 (P9 pin 27)</option>
|
||||||
|
<option value="P9_30">GPIO3_16 (P9 pin 30)</option>
|
||||||
|
<option value="P9_41">GPIO0_20 (P9 pin 41)</option>
|
||||||
|
<option value="P9_42">GPIO0_7 (P9 pin 42)</option>
|
||||||
|
<option value="USR0">User LED 0</option>
|
||||||
|
<option value="USR1">User LED 1</option>
|
||||||
|
<option value="USR2">User LED 2</option>
|
||||||
|
<option value="USR3">User LED 3</option>
|
||||||
|
</select>
|
||||||
|
</div>
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-pulseTime"><i class="icon-repeat"></i> Pulse time</label>
|
||||||
|
<input id="node-input-pulseTime" type="text" style="width: 65px">
|
||||||
|
<label> seconds</label>
|
||||||
|
</div>
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-retriggerable">Retriggerable</label>
|
||||||
|
<input type="checkbox" id="node-input-retriggerable" style="display:inline-block; width:auto; vertical-align:top;">
|
||||||
|
</div>
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-pulseState">Pulse state</label>
|
||||||
|
<select type="text" id="node-input-pulseState" style="width: 80px;">
|
||||||
|
<option value="0">0</option>
|
||||||
|
<option value="1">1</option>
|
||||||
|
</select>
|
||||||
|
</div>
|
||||||
|
<div class="form-row">
|
||||||
|
<label for="node-input-name"><i class="icon-tag"></i> Name</label>
|
||||||
|
<input type="text" id="node-input-name" placeholder="Name">
|
||||||
|
</div>
|
||||||
|
</script>
|
||||||
|
|
||||||
|
<!-- Help text for bbb-pulse-out -->
|
||||||
|
<script type="text/x-red" data-help-name="bbb-pulse-out">
|
||||||
|
<p>
|
||||||
|
Pulse an output pin on the Beaglebone Black.
|
||||||
|
</p>
|
||||||
|
<p>
|
||||||
|
Pulses the output pin for the set time after receiving an input message, unless the
|
||||||
|
message has a topic including the text 'time' and a numeric payload. In this case, the
|
||||||
|
the pulse time will be the value of the payload in seconds. If the time from either
|
||||||
|
source is < 0.001 seconds, no pulse is generated.
|
||||||
|
</p>
|
||||||
|
<p>
|
||||||
|
In retriggerable mode, a second message within the pulse period will extend the duration
|
||||||
|
of the pulse by the time value: in non-retriggerable mode, input messages arriving during
|
||||||
|
the duration of the pulse are ignored.
|
||||||
|
</p>
|
||||||
|
<p>
|
||||||
|
The pin state of the pulse may be set to either 0 or 1: the output pin will switch
|
||||||
|
back to the other state after the pulse time. An output message is generated each time
|
||||||
|
the pin changes state: its payload is the new state (0 or 1).
|
||||||
|
</p>
|
||||||
|
</script>
|
||||||
|
|
||||||
|
<!-- Register bbb-pulse-out node -->
|
||||||
|
<script type="text/javascript">
|
||||||
|
RED.nodes.registerType('bbb-pulse-out', {
|
||||||
|
category: 'advanced-input', // the palette category
|
||||||
|
color:"#de7224",
|
||||||
|
defaults: { // defines the editable properties of the node
|
||||||
|
pin: { value:"", required:true },
|
||||||
|
pulseTime: { value:1, required:true, validate:RED.validators.number() },
|
||||||
|
retriggerable: { value:false, required:true },
|
||||||
|
pulseState: { value:"1", required:true },
|
||||||
|
name: { value:"" }
|
||||||
|
},
|
||||||
|
inputs:1, // set the number of inputs - only 0 or 1
|
||||||
|
outputs:1, // set the number of outputs - 0 to n
|
||||||
|
icon: "BBB.png", // set the icon (held in public/icons)
|
||||||
|
align:"right",
|
||||||
|
label: function() { // sets the default label contents
|
||||||
|
return this.name || "bbb-pulse-out: " + this.pin;
|
||||||
|
},
|
||||||
|
labelStyle: function() { // sets the class to apply to the label
|
||||||
|
return this.name ? "node_label_italic" : "";
|
||||||
|
}
|
||||||
|
});
|
||||||
|
</script>
|
||||||
|
|
||||||
508
hardware/BBB/145-BBB-hardware.js
Normal file
508
hardware/BBB/145-BBB-hardware.js
Normal file
@ -0,0 +1,508 @@
|
|||||||
|
/**
|
||||||
|
* Copyright 2014 Maxwell R Hadley
|
||||||
|
*
|
||||||
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software
|
||||||
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||||
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||||
|
* See the License for the specific language governing permissions and
|
||||||
|
* limitations under the License.
|
||||||
|
**/
|
||||||
|
|
||||||
|
// Require main module
|
||||||
|
var RED = require(process.env.NODE_RED_HOME + "/red/red");
|
||||||
|
|
||||||
|
// Require bonescript
|
||||||
|
try {
|
||||||
|
var bonescript = require("bonescript");
|
||||||
|
} catch (err) {
|
||||||
|
require("util").log("[145-BBB-hardware] Error: cannot find module 'bonescript'");
|
||||||
|
}
|
||||||
|
|
||||||
|
// Node constructor for bbb-analogue-in
|
||||||
|
function AnalogueInputNode(n) {
|
||||||
|
// Create a RED node
|
||||||
|
RED.nodes.createNode(this, n);
|
||||||
|
|
||||||
|
// Store local copies of the node configuration (as defined in the .html)
|
||||||
|
this.topic = n.topic;
|
||||||
|
this.pin = n.pin;
|
||||||
|
this.breakpoints = n.breakpoints;
|
||||||
|
this.averaging = n.averaging;
|
||||||
|
if (this.averaging) {
|
||||||
|
this.averages = 10;
|
||||||
|
} else {
|
||||||
|
this.averages = 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Define 'node' to allow us to access 'this' from within callbacks
|
||||||
|
var node = this;
|
||||||
|
|
||||||
|
// Variables used for input averaging
|
||||||
|
var sum; // accumulates the input readings to be averaged
|
||||||
|
var count; // keep track of the number of measurements made
|
||||||
|
|
||||||
|
// The callback function for analogRead. Accumulates the required number of
|
||||||
|
// measurements, then divides the total number, applies output scaling and
|
||||||
|
// sends the result
|
||||||
|
var analogReadCallback = function (x) {
|
||||||
|
sum = sum + x.value;
|
||||||
|
count = count - 1;
|
||||||
|
if (count > 0) {
|
||||||
|
bonescript.analogRead(node.pin, analogReadCallback);
|
||||||
|
} else {
|
||||||
|
var msg = {};
|
||||||
|
msg.topic = node.topic;
|
||||||
|
sum = sum/node.averages;
|
||||||
|
// i is the index of the first breakpoint where the 'input' value is strictly
|
||||||
|
// greater than the measurement (note: a measurement can never be == 1)
|
||||||
|
var i = node.breakpoints.map(function (breakpoint) { return sum >= breakpoint.input; }).indexOf(false);
|
||||||
|
msg.payload = node.breakpoints[i-1].output + (node.breakpoints[i].output - node.breakpoints[i-1].output) *
|
||||||
|
(sum - node.breakpoints[i-1].input)/(node.breakpoints[i].input - node.breakpoints[i-1].input);
|
||||||
|
node.send(msg);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
// If we have a valid pin, set the input event handler to Bonescript's analogRead
|
||||||
|
if (["P9_39", "P9_40", "P9_37", "P9_38", "P9_33", "P9_36", "P9_35"].indexOf(node.pin) >= 0) {
|
||||||
|
node.on("input", function (msg) {
|
||||||
|
sum = 0;
|
||||||
|
count = node.averages;
|
||||||
|
bonescript.analogRead(node.pin, analogReadCallback);
|
||||||
|
});
|
||||||
|
} else {
|
||||||
|
node.error("Unconfigured input pin");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Node constructor for bbb-discrete-in
|
||||||
|
function DiscreteInputNode(n) {
|
||||||
|
RED.nodes.createNode(this, n);
|
||||||
|
|
||||||
|
// Store local copies of the node configuration (as defined in the .html)
|
||||||
|
this.topic = n.topic; // the topic is not currently used
|
||||||
|
this.pin = n.pin; // The Beaglebone Black pin identifying string
|
||||||
|
if (n.activeLow) // Set the 'active' state 0 or 1 as appropriate
|
||||||
|
this.activeState = 0;
|
||||||
|
else
|
||||||
|
this.activeState = 1;
|
||||||
|
this.updateInterval = n.updateInterval * 1000; // How often to send totalActiveTime messages
|
||||||
|
this.debounce = n.debounce; // Enable switch contact debouncing algorithm
|
||||||
|
if (n.outputOn === "rising") {
|
||||||
|
this.activeEdges = [false, true];
|
||||||
|
} else if (n.outputOn === "falling") {
|
||||||
|
this.activeEdges = [true, false];
|
||||||
|
} else if (n.outputOn === "both") {
|
||||||
|
this.activeEdges = [true, true];
|
||||||
|
} else {
|
||||||
|
node.error("Invalid edge type: " + n.outputOn);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Working variables
|
||||||
|
this.interruptAttached = false; // Flag: should we detach interrupt when we are closed?
|
||||||
|
this.intervalId = null; // Remember the timer ID so we can delete it when we are closed
|
||||||
|
this.currentState = 0; // The pin input state "1" or "0"
|
||||||
|
this.lastActiveTime = NaN; // The date (in ms since epoch) when the pin last went high
|
||||||
|
// switch to process.hrtime()
|
||||||
|
this.totalActiveTime = 0; // The total time in ms that the pin has been high (since reset)
|
||||||
|
this.starting = true;
|
||||||
|
this.debouncing = false; // True after a change of state while waiting for the 7ms debounce time to elapse
|
||||||
|
this.debounceTimer = null;
|
||||||
|
|
||||||
|
// Define 'node' to allow us to access 'this' from within callbacks
|
||||||
|
var node = this;
|
||||||
|
|
||||||
|
// This function is called by the input pin change-of-state interrupt. If
|
||||||
|
// debounce is disabled, send the output message. Otherwise, if we are
|
||||||
|
// currently debouncing, ignore this interrupt. If we are not debouncing,
|
||||||
|
// schedule a re-read of the input pin in 7ms time, and set the debouncing flag
|
||||||
|
// Note: this function gets called spuriously when the interrupt is first enabled:
|
||||||
|
// in this case x.value is undefined - we must test for this
|
||||||
|
var interruptCallback = function (x) {
|
||||||
|
if (x.value !== undefined && node.currentState !== Number(x.value)) {
|
||||||
|
if (node.debounce) {
|
||||||
|
if (node.debouncing === false) {
|
||||||
|
node.debouncing = true;
|
||||||
|
node.debounceTimer = setTimeout(function () { bonescript.digitalRead(node.pin, debounceCallback); }, 7);
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
sendStateMessage(x);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
// This function is called approx 7ms after a potential change-of-state which is
|
||||||
|
// being debounced. Terminate the debounce, and send a message if the state has
|
||||||
|
// actually changed
|
||||||
|
var debounceCallback = function (x) {
|
||||||
|
node.debounceTimer = null;
|
||||||
|
node.debouncing = false;
|
||||||
|
if (x.value !== undefined && node.currentState !== Number(x.value)) {
|
||||||
|
sendStateMessage(x);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
// This function is called when either the interruptCallback or the debounceCallback
|
||||||
|
// have determined we have a 'genuine' change of state. Update the currentState and
|
||||||
|
// ActiveTime variables, and send a message on the first output with the new state
|
||||||
|
var sendStateMessage = function (x) {
|
||||||
|
node.currentState = Number(x.value);
|
||||||
|
var now = Date.now();
|
||||||
|
if (node.currentState === node.activeState) {
|
||||||
|
node.lastActiveTime = now;
|
||||||
|
} else if (!isNaN(node.lastActiveTime)) {
|
||||||
|
node.totalActiveTime += now - node.lastActiveTime;
|
||||||
|
}
|
||||||
|
if (node.activeEdges[node.currentState]) {
|
||||||
|
var msg = {};
|
||||||
|
msg.topic = node.topic;
|
||||||
|
msg.payload = node.currentState;
|
||||||
|
node.send([msg, null]);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
// This function is called by the timer. It updates the ActiveTime variables, and sends a
|
||||||
|
// message on the second output with the latest value of the total active time, in seconds
|
||||||
|
var timerCallback = function () {
|
||||||
|
if (node.currentState === node.activeState) {
|
||||||
|
var now = Date.now();
|
||||||
|
node.totalActiveTime += now - node.lastActiveTime;
|
||||||
|
node.lastActiveTime = now;
|
||||||
|
}
|
||||||
|
var msg = {};
|
||||||
|
msg.topic = node.topic;
|
||||||
|
msg.payload = node.totalActiveTime / 1000;
|
||||||
|
node.send([null, msg]);
|
||||||
|
// Re-synchronise the pin state if we have missed a state change interrupt for some
|
||||||
|
// reason, and we are not in the process of debouncing one
|
||||||
|
if (node.debouncing === false) {
|
||||||
|
bonescript.digitalRead(node.pin, interruptCallback);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
// This function is called when we receive an input message. If the topic contains
|
||||||
|
// 'load' (case insensitive) set the totalActiveTime to the numeric value of the
|
||||||
|
// payload, if possible. Otherwise clear the totalActiveTime (so we start counting
|
||||||
|
// from zero again)
|
||||||
|
var inputCallback = function (ipMsg) {
|
||||||
|
if (String(ipMsg.topic).search(/load/i) < 0 || isFinite(ipMsg.payload) == false) {
|
||||||
|
node.totalActiveTime = 0;
|
||||||
|
} else {
|
||||||
|
node.totalActiveTime = Number(ipMsg.payload);
|
||||||
|
}
|
||||||
|
if (node.currentState === node.activeState) {
|
||||||
|
node.lastActiveTime = Date.now();
|
||||||
|
}
|
||||||
|
// On startup, send an initial activeTime message, but only send an
|
||||||
|
// initial currentState message if we are in both edges active mode
|
||||||
|
if (node.starting) {
|
||||||
|
node.starting = false;
|
||||||
|
var msg;
|
||||||
|
if (node.activeEdges[0] && node.activeEdges[1]) {
|
||||||
|
msg = [{topic:node.topic}, {topic:node.topic}];
|
||||||
|
msg[0].payload = node.currentState;
|
||||||
|
} else {
|
||||||
|
msg = [null, {topic:node.topic}];
|
||||||
|
}
|
||||||
|
msg[1].payload = node.totalActiveTime;
|
||||||
|
node.send(msg);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
// If we have a valid pin, set it as an input and read the (digital) state
|
||||||
|
if (["P8_7", "P8_8", "P8_9", "P8_10", "P8_11", "P8_12", "P8_13", "P8_14", "P8_15",
|
||||||
|
"P8_16", "P8_17", "P8_18", "P8_19", "P8_26", "P9_11", "P9_12", "P9_13", "P9_14",
|
||||||
|
"P9_15", "P9_16", "P9_17", "P9_18", "P9_21", "P9_22", "P9_23", "P9_24", "P9_26",
|
||||||
|
"P9_27", "P9_30", "P9_41", "P9_42"].indexOf(node.pin) >= 0) {
|
||||||
|
// Don't set up interrupts & intervals until after the close event handler has been installed
|
||||||
|
bonescript.detachInterrupt(node.pin);
|
||||||
|
process.nextTick(function () {
|
||||||
|
bonescript.pinMode(node.pin, bonescript.INPUT);
|
||||||
|
bonescript.digitalRead(node.pin, function (x) {
|
||||||
|
// Initialise the currentState and lastActveTime variables based on the value read
|
||||||
|
node.currentState = Number(x.value);
|
||||||
|
if (node.currentState === node.activeState) {
|
||||||
|
node.lastActiveTime = Date.now();
|
||||||
|
// switch to process.hrtime()
|
||||||
|
}
|
||||||
|
// Attempt to attach a change-of-state interrupt handler to the pin. If we succeed,
|
||||||
|
// set the input event and interval handlers, then send an initial message with the
|
||||||
|
// pin state on the first output
|
||||||
|
if (bonescript.attachInterrupt(node.pin, true, bonescript.CHANGE, interruptCallback)) {
|
||||||
|
node.interruptAttached = true;
|
||||||
|
node.on("input", inputCallback);
|
||||||
|
node.intervalId = setInterval(timerCallback, node.updateInterval);
|
||||||
|
} else {
|
||||||
|
node.error("Failed to attach interrupt");
|
||||||
|
}
|
||||||
|
setTimeout(function () { node.emit("input", {}); }, 50);
|
||||||
|
});
|
||||||
|
});
|
||||||
|
} else {
|
||||||
|
node.error("Unconfigured input pin");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Node constructor for bbb-pulse-in
|
||||||
|
function PulseInputNode(n) {
|
||||||
|
RED.nodes.createNode(this, n);
|
||||||
|
|
||||||
|
// Store local copies of the node configuration (as defined in the .html)
|
||||||
|
this.topic = n.topic; // the topic is not currently used
|
||||||
|
this.pin = n.pin; // The Beaglebone Black pin identifying string
|
||||||
|
this.updateInterval = n.updateInterval * 1000; // How often to send output messages
|
||||||
|
this.countType = n.countType; // Sets either 'edge' or 'pulse' counting
|
||||||
|
this.countUnit = n.countUnit; // Scaling appling to count output
|
||||||
|
this.countRate = n.countRate; // Scaling applied to rate output
|
||||||
|
|
||||||
|
// Working variables
|
||||||
|
this.interruptAttached = false; // Flag: should we detach interrupt when we are closed?
|
||||||
|
this.intervalId = null; // Remember the timer ID so we can delete it when we are closed
|
||||||
|
this.pulseCount = 0; // (Unscaled) total pulse count
|
||||||
|
// Hold the hrtime of the last two pulses (with ns resolution)
|
||||||
|
this.pulseTime = [[NaN, NaN], [NaN, NaN]];
|
||||||
|
|
||||||
|
// Define 'node' to allow us to access 'this' from within callbacks
|
||||||
|
var node = this;
|
||||||
|
|
||||||
|
// Called by the edge or pulse interrupt. If this is a valid interrupt, record the
|
||||||
|
// pulse time and count the pulse
|
||||||
|
var interruptCallback = function (x) {
|
||||||
|
if (x.value !== undefined) {
|
||||||
|
node.pulseTime = [node.pulseTime[1], process.hrtime()];
|
||||||
|
node.pulseCount = node.pulseCount + 1;
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
// Called when an input message arrives. If the topic contains 'load' (case
|
||||||
|
// insensitive) and the payload is a valid number, set the count to that
|
||||||
|
// number, otherwise set it to zero
|
||||||
|
var inputCallback = function (msg) {
|
||||||
|
if (String(msg.topic).search(/load/i) < 0 || isFinite(msg.payload) == false) {
|
||||||
|
node.pulseCount = 0;
|
||||||
|
} else {
|
||||||
|
node.pulseCount = Number(msg.payload);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
// Called by the message timer. Send two messages: the scaled pulse count on
|
||||||
|
// the first output and the scaled instantaneous pulse rate on the second.
|
||||||
|
// The instantaneous pulse rate is the reciprocal of the larger of either the
|
||||||
|
// time interval between the last two pulses, or the time interval since the last pulse.
|
||||||
|
var timerCallback = function () {
|
||||||
|
var now = process.hrtime();
|
||||||
|
var lastTime = node.pulseTime[1][0] - node.pulseTime[0][0] + (node.pulseTime[1][1] - node.pulseTime[0][1]) / 1e9;
|
||||||
|
var thisTime = now[0] - node.pulseTime[1][0] + (now[1] - node.pulseTime[1][1]) / 1e9;
|
||||||
|
var msg = [{ topic:node.topic }, { topic:node.topic }];
|
||||||
|
msg[0].payload = node.countUnit * node.pulseCount;
|
||||||
|
// At startup, pulseTime contains NaN's: force the rate output to 0
|
||||||
|
msg[1].payload = node.countRate / Math.max(thisTime, lastTime) || 0;
|
||||||
|
node.send(msg);
|
||||||
|
};
|
||||||
|
|
||||||
|
// If we have a valid pin, set it as an input and read the (digital) state
|
||||||
|
if (["P8_7", "P8_8", "P8_9", "P8_10", "P8_11", "P8_12", "P8_13", "P8_14", "P8_15",
|
||||||
|
"P8_16", "P8_17", "P8_18", "P8_19", "P8_26", "P9_11", "P9_12", "P9_13", "P9_14",
|
||||||
|
"P9_15", "P9_16", "P9_17", "P9_18", "P9_21", "P9_22", "P9_23", "P9_24", "P9_26",
|
||||||
|
"P9_27", "P9_30", "P9_41", "P9_42"].indexOf(node.pin) >= 0) {
|
||||||
|
// Don't set up interrupts & intervals until after the close event handler has been installed
|
||||||
|
bonescript.detachInterrupt(node.pin);
|
||||||
|
process.nextTick(function () {
|
||||||
|
bonescript.pinMode(node.pin, bonescript.INPUT);
|
||||||
|
bonescript.digitalRead(node.pin, function (x) {
|
||||||
|
// Initialise the currentState based on the value read
|
||||||
|
node.currentState = Number(x.value);
|
||||||
|
// Attempt to attach an interrupt handler to the pin. If we succeed,
|
||||||
|
// set the input event and interval handlers
|
||||||
|
var interruptType;
|
||||||
|
if (node.countType === "pulse") {
|
||||||
|
// interruptType = bonescript.FALLING; <- doesn't work in v0.2.4
|
||||||
|
interruptType = bonescript.RISING;
|
||||||
|
} else {
|
||||||
|
interruptType = bonescript.CHANGE;
|
||||||
|
}
|
||||||
|
if (bonescript.attachInterrupt(node.pin, true, interruptType, interruptCallback)) {
|
||||||
|
node.interruptAttached = true;
|
||||||
|
node.on("input", inputCallback);
|
||||||
|
node.intervalId = setInterval(timerCallback, node.updateInterval);
|
||||||
|
} else {
|
||||||
|
node.error("Failed to attach interrupt");
|
||||||
|
}
|
||||||
|
});
|
||||||
|
});
|
||||||
|
} else {
|
||||||
|
node.error("Unconfigured input pin");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Node constructor for bbb-discrete-out
|
||||||
|
function DiscreteOutputNode(n) {
|
||||||
|
RED.nodes.createNode(this, n);
|
||||||
|
|
||||||
|
// Store local copies of the node configuration (as defined in the .html)
|
||||||
|
this.topic = n.topic; // the topic is not currently used
|
||||||
|
this.pin = n.pin; // The Beaglebone Black pin identifying string
|
||||||
|
this.defaultState = Number(n.defaultState); // What state to set up as
|
||||||
|
this.inverting = n.inverting;
|
||||||
|
this.toggle = n.toggle;
|
||||||
|
|
||||||
|
// Working variables
|
||||||
|
this.currentState = this.defaultState;
|
||||||
|
|
||||||
|
var node = this;
|
||||||
|
|
||||||
|
// If the input message paylod is numeric, values > 0.5 are 'true', otherwise use
|
||||||
|
// the truthiness of the payload. Apply the inversion flag before setting the output
|
||||||
|
var inputCallback = function (msg) {
|
||||||
|
var newState;
|
||||||
|
if (node.toggle) {
|
||||||
|
newState = node.currentState === 0 ? 1 : 0;
|
||||||
|
} else {
|
||||||
|
if (isFinite(Number(msg.payload))) {
|
||||||
|
newState = Number(msg.payload) > 0.5 ? true : false;
|
||||||
|
} else if (msg.payload) {
|
||||||
|
newState = true;
|
||||||
|
} else {
|
||||||
|
newState = false;
|
||||||
|
}
|
||||||
|
if (node.inverting) {
|
||||||
|
newState = !newState;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
bonescript.digitalWrite(node.pin, newState ? 1 : 0);
|
||||||
|
node.send({ topic:node.topic, payload:newState });
|
||||||
|
node.currentState = newState;
|
||||||
|
};
|
||||||
|
|
||||||
|
// If we have a valid pin, set it as an output and set the default state
|
||||||
|
if (["P8_7", "P8_8", "P8_9", "P8_10", "P8_11", "P8_12", "P8_13", "P8_14", "P8_15",
|
||||||
|
"P8_16", "P8_17", "P8_18", "P8_19", "P8_26", "P9_11", "P9_12", "P9_13", "P9_14",
|
||||||
|
"P9_15", "P9_16", "P9_17", "P9_18", "P9_21", "P9_22", "P9_23", "P9_24", "P9_26",
|
||||||
|
"P9_27", "P9_30", "P9_41", "P9_42", "USR0", "USR1", "USR2", "USR3"].indexOf(node.pin) >= 0) {
|
||||||
|
// Don't set up interrupts & intervals until after the close event handler has been installed
|
||||||
|
bonescript.detachInterrupt(node.pin);
|
||||||
|
process.nextTick(function () {
|
||||||
|
bonescript.pinMode(node.pin, bonescript.OUTPUT);
|
||||||
|
node.on("input", inputCallback);
|
||||||
|
setTimeout(function () { bonescript.digitalWrite(node.pin, node.defaultState); }, 50);
|
||||||
|
});
|
||||||
|
} else {
|
||||||
|
node.error("Unconfigured output pin");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Node constructor for bbb-pulse-out
|
||||||
|
function PulseOutputNode(n) {
|
||||||
|
RED.nodes.createNode(this, n);
|
||||||
|
|
||||||
|
// Store local copies of the node configuration (as defined in the .html)
|
||||||
|
this.topic = n.topic; // the topic is not currently used
|
||||||
|
this.pin = n.pin; // The Beaglebone Black pin identifying string
|
||||||
|
this.pulseState = Number(n.pulseState); // What state the pulse will be..
|
||||||
|
this.defaultState = this.pulseState === 1 ? 0 : 1;
|
||||||
|
this.retriggerable = n.retriggerable;
|
||||||
|
this.pulseTime = n.pulseTime * 1000; // Pulse width in milliseconds
|
||||||
|
|
||||||
|
// Working variables
|
||||||
|
this.pulseTimer = null; // Non-null while a pulse is being generated
|
||||||
|
|
||||||
|
var node = this;
|
||||||
|
|
||||||
|
// Generate a pulse in response to an input message. If the topic includes the text
|
||||||
|
// 'time' (case insensitive) and the payload is numeric, use this value as the
|
||||||
|
// pulse time. Otherwise use the value from the properties dialog.
|
||||||
|
// If the resulting pulse time is < 1ms, do nothing.
|
||||||
|
// If the pulse mode is not retriggerable, then if no pulseTimer is active, generate
|
||||||
|
// a pulse. If the pulse mode is retriggerable, and a pulseTimer is active, cancel it.
|
||||||
|
// If no timer is active, set the pulse output. In both cases schedule a new pulse
|
||||||
|
// timer.
|
||||||
|
var inputCallback = function (msg) {
|
||||||
|
var time = node.pulseTime;
|
||||||
|
if (String(msg.topic).search(/time/i) >= 0 && isFinite(msg.payload)) {
|
||||||
|
time = msg.payload * 1000;
|
||||||
|
}
|
||||||
|
if (time >= 1) {
|
||||||
|
if (node.retriggerable === false) {
|
||||||
|
if (node.pulseTimer === null) {
|
||||||
|
node.pulseTimer = setTimeout(endPulseCallback, time);
|
||||||
|
bonescript.digitalWrite(node.pin, node.pulseState);
|
||||||
|
node.send({ topic:node.topic, payload:node.pulseState });
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
if (node.pulseTimer !== null) {
|
||||||
|
clearTimeout(node.pulseTimer);
|
||||||
|
} else {
|
||||||
|
bonescript.digitalWrite(node.pin, node.pulseState);
|
||||||
|
node.send({ topic:node.topic, payload:node.pulseState });
|
||||||
|
}
|
||||||
|
node.pulseTimer = setTimeout(endPulseCallback, time);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
// At the end of the pulse, restore the default state and set the timer to null
|
||||||
|
var endPulseCallback = function () {
|
||||||
|
node.pulseTimer = null;
|
||||||
|
bonescript.digitalWrite(node.pin, node.defaultState);
|
||||||
|
node.send({ topic:node.topic, payload:node.defaultState });
|
||||||
|
};
|
||||||
|
|
||||||
|
// If we have a valid pin, set it as an output and set the default state
|
||||||
|
if (["P8_7", "P8_8", "P8_9", "P8_10", "P8_11", "P8_12", "P8_13", "P8_14", "P8_15",
|
||||||
|
"P8_16", "P8_17", "P8_18", "P8_19", "P8_26", "P9_11", "P9_12", "P9_13", "P9_14",
|
||||||
|
"P9_15", "P9_16", "P9_17", "P9_18", "P9_21", "P9_22", "P9_23", "P9_24", "P9_26",
|
||||||
|
"P9_27", "P9_30", "P9_41", "P9_42", "USR0", "USR1", "USR2", "USR3"].indexOf(node.pin) >= 0) {
|
||||||
|
// Don't set up interrupts & intervals until after the close event handler has been installed
|
||||||
|
bonescript.detachInterrupt(node.pin);
|
||||||
|
process.nextTick(function () {
|
||||||
|
bonescript.pinMode(node.pin, bonescript.OUTPUT);
|
||||||
|
node.on("input", inputCallback);
|
||||||
|
// Set the pin to the default stte once the dust settles
|
||||||
|
setTimeout(endPulseCallback, 50);
|
||||||
|
});
|
||||||
|
} else {
|
||||||
|
node.error("Unconfigured output pin");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Register the nodes by name. This must be called before overriding any of the Node functions.
|
||||||
|
RED.nodes.registerType("bbb-analogue-in", AnalogueInputNode);
|
||||||
|
RED.nodes.registerType("bbb-discrete-in", DiscreteInputNode);
|
||||||
|
RED.nodes.registerType("bbb-pulse-in", PulseInputNode);
|
||||||
|
RED.nodes.registerType("bbb-discrete-out", DiscreteOutputNode);
|
||||||
|
RED.nodes.registerType("bbb-pulse-out", PulseOutputNode);
|
||||||
|
|
||||||
|
// On close, detach the interrupt (if we attached one) and clear any active timers
|
||||||
|
DiscreteInputNode.prototype.close = function () {
|
||||||
|
if (this.interruptAttached) {
|
||||||
|
bonescript.detachInterrupt(this.pin);
|
||||||
|
}
|
||||||
|
if (this.intervalId !== null) {
|
||||||
|
clearInterval(this.intervalId);
|
||||||
|
}
|
||||||
|
if (this.debounceTimer !== null) {
|
||||||
|
clearTimeout(this.debounceTimer);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
// On close, detach the interrupt (if we attached one) and clear the interval (if we set one)
|
||||||
|
PulseInputNode.prototype.close = function () {
|
||||||
|
if (this.interruptAttached) {
|
||||||
|
bonescript.detachInterrupt(this.pin);
|
||||||
|
}
|
||||||
|
if (this.intervalId !== null) {
|
||||||
|
clearInterval(this.intervalId);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
// On close, clear an active pulse timer
|
||||||
|
PulseOutputNode.prototype.close = function () {
|
||||||
|
if (this.pulseTimer !== null) {
|
||||||
|
clearTimeout(this.pulseTimer);
|
||||||
|
}
|
||||||
|
};
|
||||||
BIN
hardware/BBB/icons/BBB.png
Normal file
BIN
hardware/BBB/icons/BBB.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 719 B |
Loading…
Reference in New Issue
Block a user