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node-red/nodes/core/hardware/36-rpi-gpio.html

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<!--
Copyright 2013,2014 IBM Corp.
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.
-->
<script type="text/x-red" data-template-name="rpi-gpio in">
<div class="form-row">
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<label for="node-input-pin"><i class="fa fa-circle"></i> GPIO Pin</label>
<select type="text" id="node-input-pin" style="width: 250px;">
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<option value='' disabled selected style='display:none;'>select pin</option>
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<option value="3">3 - SDA1 </option>
<option value="5">5 - SCL1 </option>
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<option value="7">7 - GPIO7</option>
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<option value="8">8 - TxD </option>
<option value="10">10 - RxD </option>
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<option value="11">11 - GPIO0</option>
<option value="12">12 - GPIO1</option>
<option value="13">13 - GPIO2</option>
<option value="15">15 - GPIO3</option>
<option value="16">16 - GPIO4</option>
<option value="18">18 - GPIO5</option>
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<option value="19">19 - MOSI </option>
<option value="21">21 - MISO </option>
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<option value="22">22 - GPIO6</option>
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<option value="23">23 - SCLK </option>
<option value="24">24 - CE0 </option>
<option value="26">26 - CE1 </option>
</select>
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&nbsp;<span id="pitype"></span>
</div>
<div class="form-row">
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<label for="node-input-intype"><i class="fa fa-level-up"></i> Resistor ?</label>
<select type="text" id="node-input-intype" style="width: 150px;">
<option value="tri">none</option>
<option value="up">pullup</option>
<option value="down">pulldown</option>
</select>
</div>
<div class="form-row">
<label>&nbsp;</label>
<input type="checkbox" id="node-input-read" style="display: inline-block; width: auto; vertical-align: top;">
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<label for="node-input-read" style="width: 70%;">Read initial state of pin on deploy/restart ?</label>
</div>
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<br/>
<div class="form-row">
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<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name">
</div>
<div class="form-tips">Tip: Only Digital Input is supported - input must be 0 or 1.</div>
</script>
<script type="text/x-red" data-help-name="rpi-gpio in">
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<p>Raspberry Pi input node. Generates a <b>msg.payload</b> with either a 0 or 1 depending on the state of the input pin. Requires the gpio command to work.</p>
<p>You may also enable the input pullup resistor or the pulldown resistor.</p>
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<p>The <b>msg.topic</b> is set to <i>pi/{the pin number}</i></p>
<p>Requires the RPi.GPIO python library version 0.5.8 (or better) in order to work.</p>
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<p><b>Note:</b> we are using the actual physical pin numbers on connector P1 as they are easier to locate.</p>
</script>
<script type="text/javascript">
RED.nodes.registerType('rpi-gpio in',{
category: 'Raspberry Pi',
color:"#c6dbef",
defaults: {
name: { value:"" },
pin: { value:"",required:true,validate:RED.validators.number() },
intype: { value: "in" },
read: { value:false }
},
inputs:0,
outputs:1,
icon: "rpi.png",
label: function() {
return this.name||"Pin: "+this.pin ;
},
labelStyle: function() {
return this.name?"node_label_italic":"";
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},
oneditprepare: function() {
var pinnow = this.pin;
var pinsInUse = {};
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$.getJSON('rpi-gpio/'+this.id,function(data) {
$('#pitype').text(data.type);
if ((data.type === "Model B+") || (data.type === "Model A+")) {
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$('#node-input-pin').append($("<option></option>").attr("value",27).text("27 - SDA0"));
$('#node-input-pin').append($("<option></option>").attr("value",28).text("28 - SCL0"));
$('#node-input-pin').append($("<option></option>").attr("value",29).text("29 - GPIO21"));
$('#node-input-pin').append($("<option></option>").attr("value",31).text("31 - GPIO22"));
$('#node-input-pin').append($("<option></option>").attr("value",32).text("32 - GPIO26"));
$('#node-input-pin').append($("<option></option>").attr("value",33).text("33 - GPIO23"));
$('#node-input-pin').append($("<option></option>").attr("value",35).text("35 - GPIO24"));
$('#node-input-pin').append($("<option></option>").attr("value",36).text("36 - GPIO27"));
$('#node-input-pin').append($("<option></option>").attr("value",37).text("37 - GPIO25"));
$('#node-input-pin').append($("<option></option>").attr("value",38).text("38 - GPIO28"));
$('#node-input-pin').append($("<option></option>").attr("value",40).text("40 - GPIO29"));
$('#node-input-pin').val(pinnow);
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}
});
$.getJSON('rpi-pins/'+this.id,function(data) {
pinsInUse = data || {};
});
$("#node-input-pin").change(function() {
var pinnew = $("#node-input-pin").val();
if ((pinnew) && (pinnew !== pinnow)) {
if (pinsInUse.hasOwnProperty(pinnew)) {
RED.notify("Pin "+pinnew+" already in use.","info");
}
pinnow = pinnew;
}
});
$("#node-input-intype").change(function() {
var newtype = $("#node-input-intype option:selected").val();
if ((pinsInUse.hasOwnProperty(pinnow)) && (pinsInUse[pinnow] !== newtype)) {
RED.notify("Pin "+pinnow+" already set as "+pinsInUse[pinnow],"error");
}
});
}
});
</script>
<script type="text/x-red" data-template-name="rpi-gpio out">
<div class="form-row">
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<label for="node-input-pin"><i class="fa fa-circle"></i> GPIO Pin</label>
<select type="text" id="node-input-pin" style="width: 250px;">
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<option value='' disabled selected style='display:none;'>select pin</option>
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<option value="3">3 - SDA1 </option>
<option value="5">5 - SCL1 </option>
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<option value="7">7 - GPIO7</option>
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<option value="8">8 - TxD </option>
<option value="10">10 - RxD </option>
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<option value="11">11 - GPIO0</option>
<option value="12">12 - GPIO1</option>
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<option value="13">13 - GPIO2</option>
<option value="15">15 - GPIO3</option>
<option value="16">16 - GPIO4</option>
<option value="18">18 - GPIO5</option>
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<option value="19">19 - MOSI </option>
<option value="21">21 - MISO </option>
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<option value="22">22 - GPIO6</option>
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<option value="23">23 - SCLK </option>
<option value="24">24 - CE0 </option>
<option value="26">26 - CE1 </option>
</select>
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&nbsp;<span id="pitype"></span>
</div>
<div class="form-row" id="node-set-pwm">
<label>&nbsp;&nbsp;&nbsp;&nbsp;Type</label>
<select id="node-input-out" style="width: 250px;">
<option value="out">Digital output</option>
<option value="pwm">PWM output</option>
</select>
</div>
<div class="form-row" id="node-set-tick">
<label>&nbsp;</label>
<input type="checkbox" id="node-input-set" style="display: inline-block; width: auto; vertical-align: top;">
<label for="node-input-set" style="width: 70%;">Initialise pin state ?</label>
</div>
<div class="form-row" id="node-set-state">
<label for="node-input-level">&nbsp;</label>
<select id="node-input-level" style="width: 250px;">
<option value="0">initial level of pin - low (0)</option>
<option value="1">initial level of pin - high (1)</option>
</select>
</div>
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<br/>
<div class="form-row">
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<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name">
</div>
<div class="form-tips" id="dig-tip"><b>Tip</b>: For digital output - input must be 0 or 1.</div>
<div class="form-tips" id="pwm-tip"><b>Tip</b>: For PWM output - input must be between 0 to 1023.</div>
</script>
<script type="text/x-red" data-help-name="rpi-gpio out">
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<p>Raspberry Pi output node. Expects a <b>msg.payload</b> with either a 0 or 1 (or true or false). Requires the gpio command to work.</p>
<p>Will set the selected physical pin high or low depending on the value passed in.</p>
<p>The initial value of the pin at deploy time can also be set to 0 or 1.</p>
<p>When using PWM mode - expects an input value of a number 0 - 100.</p>
<p>Requires the RPi.GPIO python library version 0.5.8 (or better) in order to work.</p>
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<p><b>Note:</b> we are using the actual physical pin numbers on connector P1 as they are easier to locate.</p>
</script>
<script type="text/javascript">
RED.nodes.registerType('rpi-gpio out',{
category: 'Raspberry Pi',
color:"#c6dbef",
defaults: {
name: { value:"" },
pin: { value:"",required:true,validate:RED.validators.number() },
set: { value:"" },
level: { value:"0" },
out: { value:"out" }
},
inputs:1,
outputs:0,
icon: "rpi.png",
align: "right",
label: function() {
if (this.out === "pwm") { return this.name || "PWM: "+this.pin; }
else { return this.name||"Pin: "+this.pin ; }
},
labelStyle: function() {
return this.name?"node_label_italic":"";
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},
oneditprepare: function() {
var pinnow = this.pin;
var pinsInUse = {};
if (!$("#node-input-out").val()) { $("#node-input-out").val("out"); }
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$.getJSON('rpi-gpio/'+this.id,function(data) {
$('#pitype').text(data.type);
if ((data.type === "Model B+") || (data.type === "Model A+")) {
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$('#node-input-pin').append($("<option></option>").attr("value",27).text("27 - SDA0"));
$('#node-input-pin').append($("<option></option>").attr("value",28).text("28 - SCL0"));
$('#node-input-pin').append($("<option></option>").attr("value",29).text("29 - GPIO21"));
$('#node-input-pin').append($("<option></option>").attr("value",31).text("31 - GPIO22"));
$('#node-input-pin').append($("<option></option>").attr("value",32).text("32 - GPIO26"));
$('#node-input-pin').append($("<option></option>").attr("value",33).text("33 - GPIO23"));
$('#node-input-pin').append($("<option></option>").attr("value",35).text("35 - GPIO24"));
$('#node-input-pin').append($("<option></option>").attr("value",36).text("36 - GPIO27"));
$('#node-input-pin').append($("<option></option>").attr("value",37).text("37 - GPIO25"));
$('#node-input-pin').append($("<option></option>").attr("value",38).text("38 - GPIO28"));
$('#node-input-pin').append($("<option></option>").attr("value",40).text("40 - GPIO29"));
$('#node-input-pin').val(pinnow);
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}
});
$.getJSON('rpi-pins/'+this.id,function(data) {
pinsInUse = data || {};
});
$("#node-input-pin").change(function() {
var pinnew = $("#node-input-pin").val();
if ((pinnew) && (pinnew !== pinnow)) {
if (pinsInUse.hasOwnProperty(pinnew)) {
RED.notify("Pin "+pinnew+" already in use.","info");
}
pinnow = pinnew;
}
});
$("#node-input-out").change(function() {
var newtype = $("#node-input-out option:selected").val();
if ((pinsInUse.hasOwnProperty(pinnow)) && (pinsInUse[pinnow] !== newtype)) {
RED.notify("Pin "+pinnow+" already set as "+pinsInUse[pinnow],"error");
}
});
var hidestate = function () {
if ($("#node-input-out").val() === "pwm") {
$('#node-set-tick').hide();
$('#node-set-state').hide();
$('#node-input-set').prop('checked', false);
$("#dig-tip").hide();
$("#pwm-tip").show();
}
else {
$('#node-set-tick').show();
$("#dig-tip").show();
$("#pwm-tip").hide();
}
};
$("#node-input-out").change(function () { hidestate(); });
hidestate();
var setstate = function () {
if ($('#node-input-set').is(":checked")) {
$("#node-set-state").show();
} else {
$("#node-set-state").hide();
}
};
$("#node-input-set").change(function () { setstate(); });
setstate();
}
});
</script>
<script type="text/x-red" data-template-name="rpi-mouse">
<div class="form-row">
<label for="node-input-butt"><i class="fa fa-circle"></i> Button</label>
<select type="text" id="node-input-butt" style="width: 250px;">
<option value="1">left</option>
<option value="2">right</option>
<option value="4">middle</option>
<option value="7">any</option>
</select>
</div>
<div class="form-row">
<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name">
</div>
</script>
<script type="text/x-red" data-help-name="rpi-mouse">
<p>Raspberry Pi mouse button node. Generates a <b>msg.payload</b> with
either a 1 or 0 when the selected mouse button is pressed and released</p>
<p>Also sets <b>msg.button</b> to the code value, 1 = left, 2 = right, 4 = middle,
so you can work out which button or combination was pressed.</p>
<p>And sets <b>msg.topic</b> to <i>pi/mouse</i>.</p>
</script>
<script type="text/javascript">
RED.nodes.registerType('rpi-mouse',{
category: 'Raspberry Pi',
color:"#c6dbef",
defaults: {
name: { value:"" },
butt: { value:"1",required:true }
},
inputs:0,
outputs:1,
icon: "rpi.png",
label: function() {
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var na = "Pi Mouse";
if (this.butt === "1") { na += " Left"; }
if (this.butt === "2") { na += " Right"; }
if (this.butt === "4") { na += " Middle"; }
return this.name||na;
},
labelStyle: function() {
return this.name?"node_label_italic":"";
}
});
</script>