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https://github.com/node-red/node-red-nodes.git
synced 2023-10-10 13:36:58 +02:00
Added pulse-out node
This commit is contained in:
Maxwell Hadley
parent
e8df573ea3
commit
65a0c9336f
@ -91,7 +91,7 @@ Discrete input for the Beaglebone Black. Sends a message with payload 0 or 1 on
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first output when the pin changes state, and logs the total time in the active state.
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</p>
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<p>
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The node sends a message with a payload of the current total active time
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Sends a message with a payload of the current total active time
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(in seconds) on the second output at selectable intervals. An input message with topic 'load'
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and a numeric payload will set the total active time to that value: any other input message
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will reset it to zero.
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@ -207,8 +207,8 @@ press. When using buttons or switches, enable debouncing to improve reliability.
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<!-- Help text for pulse-in -->
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<script type="text/x-red" data-help-name="pulse-in">
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<p>
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Pulse input for the Beaglebone Black. Counts input pulses or pulse edges, outputs
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the total counts and the rate of counts/second, each with scaling applied.
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Pulse input for the Beaglebone Black. Counts input pulses or pulse edges: outputs
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total counts and the rate of counts/sec, with scaling.
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</p>
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<p>
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Sends the total count message on the first output, and the current count
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@ -311,17 +311,17 @@ any other input message will reset it to zero.
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<!-- Help text for discrete-out -->
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<script type="text/x-red" data-help-name="discrete-out">
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<p>
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Discrete output for the Beaglebone Black.
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Directly control an output pin on the Beaglebone Black.
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</p>
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<p>
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Sets the output pin high or low depending on the payload of the input message. Numeric
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payloads > 0.5 are 'high', payloads <= 0.5 are 'low'. Other payloads which
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payloads > 0.5 are 'high' (1), payloads <= 0.5 are 'low' (0). Other payloads which
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evaluate to true are 'high', if not then 'low'. Selecting the Inverting checkbox will
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switch the sense of the comparison.
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switch the sense of the pin output.
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</p>
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<p>
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If the Toggle state checkbox is checked, any message will cause the pin to switch from
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1 to 0 and back.
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If the Toggle state checkbox is checked, the message content is ignored: successive
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messages cause the pin to toggle between 0 and 1.
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</P>
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<p>
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The pin will be initially set to the given Startup state until the first message arrives:
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@ -352,3 +352,116 @@ the Inverting property is not applied to this value.
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}
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});
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</script>
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<!-- Edit dialog for pulse-out -->
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<script type="text/x-red" data-template-name="pulse-out">
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<div class="form-row">
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<label for="node-input-pin"><i class="icon-asterisk"></i>Output pin</label>
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<select type="text" id="node-input-pin" style="width: 200px;">
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<option value="">select pin</option>
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<option value="P8_7">GPIO2_2 (P8 pin 7)</option>
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<option value="P8_8">GPIO2_3 (P8 pin 8)</option>
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<option value="P8_9">GPIO2_5 (P8 pin 9)</option>
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<option value="P8_10">GPIO2_4 (P8 pin 10)</option>
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<option value="P8_11">GPIO1_13 (P8 pin 11)</option>
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<option value="P8_12">GPIO1_12 (P8 pin 12)</option>
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<option value="P8_13">GPIO0_23 (P8 pin 13)</option>
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<option value="P8_14">GPIO0_26 (P8 pin 14)</option>
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<option value="P8_15">GPIO1_15 (P8 pin 15)</option>
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<option value="P8_16">GPIO1_14 (P8 pin 16)</option>
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<option value="P8_17">GPIO0_27 (P8 pin 17)</option>
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<option value="P8_18">GPIO2_1 (P8 pin 18)</option>
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<option value="P8_19">GPIO0_22 (P8 pin 19)</option>
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<option value="P8_26">GPIO1_29 (P8 pin 26)</option>
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<option value="P9_11">GPIO0_30 (P9 pin 11)</option>
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<option value="P9_12">GPIO1_28 (P9 pin 12)</option>
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<option value="P9_13">GPIO0_31 (P9 pin 13)</option>
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<option value="P9_14">GPIO1_18 (P9 pin 14)</option>
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<option value="P9_15">GPIO1_16 (P9 pin 15)</option>
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<option value="P9_16">GPIO1_19 (P9 pin 16)</option>
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<option value="P9_17">GPIO0_5 (P9 pin 17)</option>
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<option value="P9_18">GPIO0_4 (P9 pin 18)</option>
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<option value="P9_21">GPIO0_3 (P9 pin 21)</option>
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<option value="P9_22">GPIO0_2 (P9 pin 22)</option>
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<option value="P9_23">GPIO1_17 (P9 pin 23)</option>
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<option value="P9_24">GPIO0_15 (P9 pin 24)</option>
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<option value="P9_26">GPIO0_14 (P9 pin 26)</option>
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<option value="P9_27">GPIO3_19 (P9 pin 27)</option>
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<option value="P9_30">GPIO3_16 (P9 pin 30)</option>
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<option value="P9_41">GPIO0_20 (P9 pin 41)</option>
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<option value="P9_42">GPIO0_7 (P9 pin 42)</option>
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<option value="USR0">User LED 0</option>
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<option value="USR1">User LED 1</option>
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<option value="USR2">User LED 2</option>
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<option value="USR3">User LED 3</option>
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</select>
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</div>
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<div class="form-row">
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<label for="node-input-pulseTime"><i class="icon-repeat"></i> Pulse time</label>
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<input id="node-input-pulseTime" type="text" style="width: 65px">
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<label> seconds</label>
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</div>
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<div class="form-row">
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<label for="node-input-retriggerable">Retriggerable</label>
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<input type="checkbox" id="node-input-retriggerable" style="display:inline-block; width:auto; vertical-align:top;">
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</div>
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<div class="form-row">
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<label for="node-input-pulseState">Pulse state</label>
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<select type="text" id="node-input-pulseState" style="width: 80px;">
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<option value="0">0</option>
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<option value="1">1</option>
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</select>
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</div>
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<div class="form-row">
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<label for="node-input-name"><i class="icon-tag"></i> Name</label>
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<input type="text" id="node-input-name" placeholder="Name">
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</div>
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</script>
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<!-- Help text for pulse-out -->
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<script type="text/x-red" data-help-name="pulse-out">
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<p>
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Pulse an output pin on the Beaglebone Black.
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</p>
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<p>
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Pulses the output pin for the set time after receiving an input message, unless the
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message has a topic including the text 'time' and a numeric payload. In this case, the
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the pulse time will be the value of the payload in seconds. If the time from either
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source is < 0.001 seconds, no pulse is generated.
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</p>
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<p>
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In retriggerable mode, a second message within the pulse period will extend the duration
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of the pulse by the time value: in non-retriggerable mode, input messages arriving during
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the duration of the pulse are ignored.
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</p>
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<p>
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The pin state of the pulse may be set to either 0 or 1: the output pin will switch
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back to the other state after the pulse time. An output message is generated each time
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the pin changes state: its payload is the new state (0 or 1).
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</p>
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</script>
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<!-- Register pulse-out -->
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<script type="text/javascript">
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RED.nodes.registerType('pulse-out', {
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category: 'advanced-input', // the palette category
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color:"#c6dbef",
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defaults: { // defines the editable properties of the node
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pin: { value:"", required:true },
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pulseTime: { value:1, required:true, validate:RED.validators.number() },
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retriggerable: { value:false, required:true },
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pulseState: { value:"1", required:true },
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name: { value:"" }
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},
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inputs:1, // set the number of inputs - only 0 or 1
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outputs:1, // set the number of outputs - 0 to n
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icon: "arrow-out.png", // set the icon (held in public/icons)
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label: function() { // sets the default label contents
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return this.name || "pulse-out: " + this.pin;
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},
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labelStyle: function() { // sets the class to apply to the label
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return this.name ? "node_label_italic" : "";
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}
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});
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</script>
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@ -340,10 +340,85 @@ function DiscreteOutputNode(n) {
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}
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}
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// Node constructor for pulse-out
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function PulseOutputNode(n) {
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RED.nodes.createNode(this, n);
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// Store local copies of the node configuration (as defined in the .html)
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this.topic = n.topic; // the topic is not currently used
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this.pin = n.pin; // The Beaglebone Black pin identifying string
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this.pulseState = Number(n.pulseState); // What state the pulse will be..
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this.defaultState = this.pulseState === 1 ? 0 : 1;
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this.retriggerable = n.retriggerable;
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this.pulseTime = n.pulseTime * 1000; // Pulse width in milliseconds
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// Working variables
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this.pulseTimer = null; // Non-null while a pulse is being generated
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var node = this;
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// Generate a pulse in response to an input message. If the topic includes the text
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// 'time' (case insensitive) and the payload is numeric, use this value as the
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// pulse time. Otherwise use the value from the properties dialog.
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// If the resulting pulse time is < 1ms, do nothing.
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// If the pulse mode is not retriggerable, then if no pulseTimer is active, generate
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// a pulse. If the pulse mode is retriggerable, and a pulseTimer is active, cancel it.
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// If no timer is active, set the pulse output. In both cases schedule a new pulse
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// timer.
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var inputCallback = function (msg) {
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var time = node.pulseTime;
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if (String(msg.topic).search(/time/i) >= 0 && isFinite(msg.payload)) {
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time = msg.payload * 1000;
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}
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if (time >= 1) {
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if (node.retriggerable === false) {
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if (node.pulseTimer === null) {
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node.pulseTimer = setTimeout(endPulseCallback, time);
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bonescript.digitalWrite(node.pin, node.pulseState);
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node.send({ topic:node.topic, payload:node.pulseState });
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}
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} else {
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if (node.pulseTimer !== null) {
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clearTimeout(node.pulseTimer);
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} else {
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bonescript.digitalWrite(node.pin, node.pulseState);
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node.send({ topic:node.topic, payload:node.pulseState });
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}
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node.pulseTimer = setTimeout(endPulseCallback, time);
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}
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}
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};
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// At the end of the pulse, restore the default state and set the timer to null
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var endPulseCallback = function () {
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node.pulseTimer = null;
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bonescript.digitalWrite(node.pin, node.defaultState);
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node.send({ topic:node.topic, payload:node.defaultState });
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};
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// If we have a valid pin, set it as an output and set the default state
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if (["P8_7", "P8_8", "P8_9", "P8_10", "P8_11", "P8_12", "P8_13", "P8_14", "P8_15",
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"P8_16", "P8_17", "P8_18", "P8_19", "P8_26", "P9_11", "P9_12", "P9_13", "P9_14",
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"P9_15", "P9_16", "P9_17", "P9_18", "P9_21", "P9_22", "P9_23", "P9_24", "P9_26",
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"P9_27", "P9_30", "P9_41", "P9_42", "USR0", "USR1", "USR2", "USR3"].indexOf(node.pin) >= 0) {
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// Don't set up interrupts & intervals until after the close event handler has been installed
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bonescript.detachInterrupt(node.pin);
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process.nextTick(function () {
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bonescript.pinMode(node.pin, bonescript.OUTPUT);
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node.on("input", inputCallback);
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// Set the pin to the default stte once the dust settles
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setTimeout(endPulseCallback, 50);
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});
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} else {
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node.error("Unconfigured output pin");
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}
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}
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// Register the nodes by name. This must be called before overriding any of the Node functions.
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RED.nodes.registerType("discrete-in", DiscreteInputNode);
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RED.nodes.registerType("pulse-in", PulseInputNode);
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RED.nodes.registerType("discrete-out", DiscreteOutputNode);
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RED.nodes.registerType("pulse-out", PulseOutputNode);
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// On close, detach the interrupt (if we attached one) and clear any active timers
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DiscreteInputNode.prototype.close = function () {
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@ -367,3 +442,10 @@ PulseInputNode.prototype.close = function () {
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clearInterval(this.intervalId);
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}
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};
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// On close, clear an active pulse timer
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PulseOutputNode.prototype.close = function () {
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if (this.pulseTimer !== null) {
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clearTimeout(this.pulseTimer);
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}
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};
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