From 0648f4cc0dfbddefa9a5131e26970507724377f0 Mon Sep 17 00:00:00 2001
From: Dave Conway-Jones <conway@DCJMac.lan>
Date: Sun, 3 Jan 2016 18:23:49 +0000
Subject: [PATCH] Add status indicators to PiFace node

---
 hardware/PiFace/37-rpi-piface.js | 22 +++++++++++++++++++---
 hardware/PiFace/package.json     |  2 +-
 2 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/hardware/PiFace/37-rpi-piface.js b/hardware/PiFace/37-rpi-piface.js
index 59900a28..82fb0602 100644
--- a/hardware/PiFace/37-rpi-piface.js
+++ b/hardware/PiFace/37-rpi-piface.js
@@ -72,12 +72,16 @@ module.exports = function(RED) {
                 else {
                     node._interval = setInterval( function() {
                         exec("gpio -p read "+node.pin, function(err,stdout,stderr) {
-                            if (err) { node.error(err); }
+                            if (err) {
+                                node.error(err);
+                                node.status({fill:"red",shape:"ring",text:"error"});
+                            }
                             else {
                                 if (node.buttonState !== Number(stdout)) {
                                     var previousState = node.buttonState;
                                     node.buttonState = Number(stdout);
                                     if (previousState !== -1) {
+                                        node.status({fill:"green",shape:"dot",text:node.buttonState.toString()});
                                         var msg = {topic:"piface/"+node.npin, payload:node.buttonState};
                                         node.send(msg);
                                     }
@@ -105,7 +109,13 @@ module.exports = function(RED) {
         if (node.pin) {
             if (node.set) {
                 exec("gpio -p write "+node.pin+" "+node.level, function(err,stdout,stderr) {
-                    if (err) { node.error(err); }
+                    if (err) {
+                        node.status({fill:"red",shape:"ring",text:"error"});
+                        node.error(err);
+                    }
+                    else {
+                        node.status({fill:"yellow",shape:"dot",text:node.level});
+                    }
                 });
             }
             node.on("input", function(msg) {
@@ -114,7 +124,13 @@ module.exports = function(RED) {
                 var out = Number(msg.payload);
                 if ((out === 0)|(out === 1)) {
                     exec("gpio -p write "+node.pin+" "+out, function(err,stdout,stderr) {
-                        if (err) { node.error(err); }
+                        if (err) {
+                            node.status({fill:"red",shape:"ring",text:"error"});
+                            node.error(err);
+                        }
+                        else {
+                            node.status({fill:"green",shape:"dot",text:out.toString()});
+                        }
                     });
                 }
                 else { node.warn("Invalid input - not 0 or 1"); }
diff --git a/hardware/PiFace/package.json b/hardware/PiFace/package.json
index 73326620..1894f119 100644
--- a/hardware/PiFace/package.json
+++ b/hardware/PiFace/package.json
@@ -1,6 +1,6 @@
 {
     "name"          : "node-red-node-piface",
-    "version"       : "0.0.5",
+    "version"       : "0.0.6",
     "description"   : "Node-RED nodes to read from and write to a PiFace Digital Raspberry Pi add-on board",
     "dependencies"  : {
     },