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node-red-nodes
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Add status indicators to PiFace node

This commit is contained in:
Dave Conway-Jones 2016-01-03 18:23:49 +00:00
parent 7408cf7674
commit 0648f4cc0d
2 changed files with 20 additions and 4 deletions
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22
hardware/PiFace/37-rpi-piface.js
View File

@ -72,12 +72,16 @@ module.exports = function(RED) {
else { else {
node._interval = setInterval( function() { node._interval = setInterval( function() {
exec("gpio -p read "+node.pin, function(err,stdout,stderr) { 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 { else {
if (node.buttonState !== Number(stdout)) { if (node.buttonState !== Number(stdout)) {
var previousState = node.buttonState; var previousState = node.buttonState;
node.buttonState = Number(stdout); node.buttonState = Number(stdout);
if (previousState !== -1) { if (previousState !== -1) {
node.status({fill:"green",shape:"dot",text:node.buttonState.toString()});
var msg = {topic:"piface/"+node.npin, payload:node.buttonState}; var msg = {topic:"piface/"+node.npin, payload:node.buttonState};
node.send(msg); node.send(msg);
} }
@ -105,7 +109,13 @@ module.exports = function(RED) {
if (node.pin) { if (node.pin) {
if (node.set) { if (node.set) {
exec("gpio -p write "+node.pin+" "+node.level, function(err,stdout,stderr) { 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) { node.on("input", function(msg) {
@ -114,7 +124,13 @@ module.exports = function(RED) {
var out = Number(msg.payload); var out = Number(msg.payload);
if ((out === 0)|(out === 1)) { if ((out === 0)|(out === 1)) {
exec("gpio -p write "+node.pin+" "+out, function(err,stdout,stderr) { 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"); } else { node.warn("Invalid input - not 0 or 1"); }

2
hardware/PiFace/package.json
View File

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