Fix PiFace node initial state so it works...

(which it never did… oops! )

hardware/PiFace/37-rpi-piface.html

@@ -63,6 +63,8 @@
     <p>The <b>msg.topic</b> is set to <i>piface/{the pin number}</i></p>
     <p>Requires the WiringPi gpio command in order to work.</p>
     <p><b>Note:</b> This node currently polls the pin every 250mS. This is not ideal as it loads the cpu.</p>
+    <p><b>Note:</b> Some versions of the PiFace relabelled the switch inputs to be 0 - 7 instead of 1 - 8. 
+    We cannot automatically detect this so the user will have to apply some common sense.</p>
 </script>
 
 <script type="text/javascript">

hardware/PiFace/37-rpi-piface.js

@@ -99,6 +99,8 @@ module.exports = function(RED) {
     function PiFACEOutNode(n) {
         RED.nodes.createNode(this,n);
         this.pin = pintable[n.pin];
+        this.set = n.set;
+        this.level = n.level;
         var node = this;
         if (node.pin) {
             if (node.set) {
@@ -123,10 +125,9 @@ module.exports = function(RED) {
         }
     }
 
-
     exec("gpio load spi",function(err,stdout,stderr) {
         if (err) {
-            util.log('[37-rpi-piface.js] Error: "gpio load spi" command failed for some reason.');
+            util.log('[37-rpi-piface.js] Error: "gpio load spi" command failed. Check device tree is disabled.');
         }
         RED.nodes.registerType("rpi-piface in",PiFACEInNode);
         RED.nodes.registerType("rpi-piface out",PiFACEOutNode);

hardware/PiFace/README.md

@@ -5,6 +5,10 @@ node-red-node-piface
 <a href="http://www.piface.org.uk/products/piface_digital/" target="_new">PiFace Digital</a>
 add-on board for a Raspberry-Pi.
 
+**Note:** Some later versions of the PiFace relabelled the switch inputs to be `0 - 7`
+instead of `1 - 8` as on the original boards.
+We cannot automatically detect this so the user will have to apply some common sense.
+
 Install
 -------
 

hardware/PiFace/package.json

@@ -1,6 +1,6 @@
 {
     "name"          : "node-red-node-piface",
-    "version"       : "0.0.4",
+    "version"       : "0.0.5",
     "description"   : "Node-RED nodes to read from and write to a PiFace Digital Raspberry Pi add-on board",
     "dependencies"  : {
     },