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34 lines
2.2 KiB
HTML
34 lines
2.2 KiB
HTML
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<script type="text/html" data-help-name="pi-gpiod in">
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<p>Raspberry Pi input node. Generates a <code>msg.payload</code> with either a
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0 or 1 depending on the state of the input pin.
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Requires the <a href="http://abyz.me.uk/rpi/pigpio/index.html" target="_new">pi-gpiod</a>
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daemon to be running on the host computer in order to work.</p>
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<p><b>Outputs</b>
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<ul>
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<li><code>msg.payload</code> - <i>number</i> - the level of the pin (0 or 1).</li>
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<li><code>msg.topic</code> - <i>string</i> - pi/{the pin number}</li>
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</ul>
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<p><b>Details</b></p>
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<p>You may also enable the input pullup resistor ↑ or the pulldown resistor ↓.</p>
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<p>If using with Docker on Pi then the default Host IP should be <code>172.17.0.1</code>. You will also need to run <code>sudo pigpiod</code> on the host.</p>
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<p><b>Note:</b> the pin numbers refer the physical pin numbers on connector P1 as they are easier to locate.</p>
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</script>
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<script type="text/html" data-help-name="pi-gpiod out">
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<p>Raspberry Pi output node. Can be used in Digital, PWM or Servo modes. Requires the
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<a href="http://abyz.me.uk/rpi/pigpio/index.html" target="_new">pi-gpiod</a> daemon to be running in order to work.</p>
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<p><b>Inputs</b>
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<ul>
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<li><code>msg.payload</code> - <i>number | string</i> - 0,1 (Digital), 0-100 (PWM, Servo)</li>
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</ul>
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<p><b>Details</b></p>
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<p>Digital mode expects a <code>msg.payload</code> with either a 0 or 1 (or true or false),
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and will set the selected physical pin high or low depending on the value passed in.</p>
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<p>The initial value of the pin at deploy time can also be set to 0 or 1.</p>
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<p>When using PWM and Servo modes, the input value should be a number 0 - 100, and can be floating point.</p>
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<p>In Servo mode you can stop the output by sending a <code>msg.payload</code> of <code>null</code> or <code>""</code>.</p>
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<p>If using with Docker on Pi then the default Host IP should be <code>172.17.0.1</code>. You will also need to run <code>sudo pigpiod</code> on the host.</p>
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<p><b>Note</b>: the pin numbers refer the physical pin numbers on connector P1 as they are easier to locate.</p>
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</script>
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