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Let gpiod turn off output in servo mode by sending null or "" 

to close #543
This commit is contained in:
Dave Conway-Jones 2019-05-26 15:39:55 +01:00
parent af4eefa5fb
commit b74aacd266
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3 changed files with 34 additions and 24 deletions
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2
hardware/pigpiod/package.json
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@ -1,6 +1,6 @@
{
"name": "node-red-node-pi-gpiod",
"version": "0.0.11",
"version": "0.0.12",
"description": "A node-red node for PiGPIOd",
"dependencies" : {
"js-pigpio": "*"

1
hardware/pigpiod/pi-gpiod.html
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@ -427,6 +427,7 @@
and 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 and Servo modes, the input value should be a number 0 - 100, and can be floating point.</p>
<p>In Servo mode you can stop the output by sending a <code>msg.payload</code> of <code>null</code> or <code>""</code>.</p>
<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>
<p><b>Note</b>: the pin numbers refer the physical pin numbers on connector P1 as they are easier to locate.</p>
</script>

9
hardware/pigpiod/pi-gpiod.js
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@ -99,6 +99,14 @@ module.exports = function(RED) {
var PiGPIO;
function inputlistener(msg) {
if (node.out === "ser" && (msg.payload === null || msg.payload === "")) {
if (!inerror) {
PiGPIO.setServoPulsewidth(node.pin, 0);
node.status({fill:"green",shape:"dot",text:""});
}
else { node.status({fill:"grey",shape:"ring",text:"N/C: " + msg.payload.toString()}); }
}
else {
if (msg.payload === "true") { msg.payload = true; }
if (msg.payload === "false") { msg.payload = false; }
var out = Number(msg.payload);
@ -126,6 +134,7 @@ module.exports = function(RED) {
}
else { node.warn(RED._("pi-gpiod:errors.invalidinput")+": "+out); }
}
}
if (node.pin !== undefined) {
PiGPIO = new Pigpio();