add extra gpoio support to neopixel node

hardware/neopixel/neopix.py

@@ -47,6 +47,8 @@ MODE = sys.argv[3]
 LED_BRIGHTNESS = min(255,int(max(0,float(sys.argv[4])) * 255 / 100))
 if (sys.argv[5].lower() != "true"):
     LED_GAMMA = range(256)
+LED_CHANNEL = int(sys.argv[6])
+LED_PIN = int(sys.argv[7])
 
 def getRGBfromI(RGBint):
     blue =  RGBint & 255

hardware/neopixel/neopixel.html

@@ -1,8 +1,15 @@
 
-<script type="text/x-red" data-template-name="rpi-neopixels">
+<script type="text/html" data-template-name="rpi-neopixels">
 <div class="form-row">
     <label for="node-input-pixels"><i class="fa fa-sun-o"></i> LEDs</label>
     <input type="text" id="node-input-pixels" placeholder="number" style="width:60px;"> in the string
+    <span style="margin-left:50px;">Pin Number </span>
+    <select id="node-input-gpio" style="width:50px; margin-left:5px;">
+        <option value="18">12</option>
+        <option value="12">32</option>
+        <option value="13">33</option>
+        <option value="19">35</option>
+    </select>
 </div>
 <div class="form-row">
     <label for="node-input-mode"><i class="fa fa-cogs"></i> Mode</label>
@@ -48,7 +55,7 @@
 </div>
 </script>
 
-<script type="text/x-red" data-help-name="rpi-neopixels">
+<script type="text/html" data-help-name="rpi-neopixels">
     <p>Raspberry Pi node to drive a string of neopixel or ws2812 LEDs.</p>
     <p>Defaults to a bar chart style mode using configured foreground and background colours.
     It can also display a needle (single pixel) type gauge.</p>
@@ -76,6 +83,7 @@
         color:"#c6dbef",
         defaults: {
             name: { value:"" },
+            gpio: { value:18 },
             pixels: { value:"", required:true, validate:RED.validators.number() },
             bgnd: { value:"" },
             fgnd: { value:"" },

hardware/neopixel/neopixel.js

@@ -40,6 +40,9 @@ module.exports = function(RED) {
         this.rgb = n.rgb || "rgb";
         this.gamma = n.gamma;
         if (this.gamma === undefined) { this.gamma = true; }
+        this.gpio = n.gpio || 18;
+        this.channel = 0;
+        if (this.gpio == 13 || this.gpio == 19) { this.channel = 1; }
         this.brightness = Number(n.brightness || 100);
         this.wipe = Number(n.wipe || 40);
         if (this.wipe < 0) { this.wipe = 0; }
@@ -114,7 +117,7 @@ module.exports = function(RED) {
         }
 
         if (allOK === true) {
-            node.child = spawn(piCommand, [node.pixels, node.wipe, node.mode, node.brightness, node.gamma]);
+            node.child = spawn(piCommand, [node.pixels, node.wipe, node.mode, node.brightness, node.gamma, node.channel, node.gpio]);
             node.status({fill:"green",shape:"dot",text:"ok"});
 
             node.on("input", inputlistener);

hardware/neopixel/package.json

@@ -1,6 +1,6 @@
 {
     "name"          : "node-red-node-pi-neopixel",
-    "version"       : "0.0.25",
+    "version"       : "0.1.0",
     "description"   : "A Node-RED node to output to a neopixel (ws2812) string of LEDS from a Raspberry Pi.",
     "dependencies"  : {
     },