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Various little tweaks - less console.log more util.log, add exra try/catch to serial, add wiring-pi url to Pi "error message".

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This commit is contained in:
Dave C-J
2013-11-03 19:09:45 +00:00
parent 2e92b9a120
commit d9ed5b46c4
4 changed files with 156 additions and 156 deletions
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196
nodes/hardware/36-rpi-gpio.js
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@@ -20,124 +20,124 @@ var exec = require('child_process').exec;
var fs = require('fs');
if (!fs.existsSync("/usr/local/bin/gpio")) {
exec("cat /proc/cpuinfo | grep BCM27",function(err,stdout,stderr) {
if (stdout.indexOf('BCM27') > -1) {
util.log('[36-rpi-gpio.js] Error: Cannot find Wiring-Pi "gpio" command');
}
// else not on a Pi so don't worry anyone with needless messages.
});
return;
exec("cat /proc/cpuinfo | grep BCM27",function(err,stdout,stderr) {
if (stdout.indexOf('BCM27') > -1) {
util.log('[36-rpi-gpio.js] Error: Cannot find Wiring-Pi "gpio" command. http://wiringpi.com/download-and-install/');
}
// else not on a Pi so don't worry anyone with needless messages.
});
return;
}
// Map physical P1 pins to Gordon's Wiring-Pi Pins (as they should be V1/V2 tolerant)
var pintable = {
// Physical : WiringPi
"7":"7",
"11":"0",
"12":"1",
"13":"2",
"15":"3",
"16":"4",
"18":"5",
"22":"6"
"7":"7",
"11":"0",
"12":"1",
"13":"2",
"15":"3",
"16":"4",
"18":"5",
"22":"6"
}
var tablepin = {
// WiringPi : Physical
"7":"7",
"0":"11",
"1":"12",
"2":"13",
"3":"15",
"4":"16",
"5":"18",
"6":"22"
"7":"7",
"0":"11",
"1":"12",
"2":"13",
"3":"15",
"4":"16",
"5":"18",
"6":"22"
}
function GPIOInNode(n) {
RED.nodes.createNode(this,n);
this.buttonState = -1;
this.pin = pintable[n.pin];
this.intype = n.intype;
var node = this;
RED.nodes.createNode(this,n);
this.buttonState = -1;
this.pin = pintable[n.pin];
this.intype = n.intype;
var node = this;
if (this.pin) {
exec("gpio mode "+node.pin+" "+node.intype, function(err,stdout,stderr) {
if (err) node.error(err);
else {
node._interval = setInterval( function() {
exec("gpio read "+node.pin, function(err,stdout,stderr) {
if (err) node.error(err);
else {
if (node.buttonState !== Number(stdout)) {
var previousState = node.buttonState;
node.buttonState = Number(stdout);
if (previousState !== -1) {
var msg = {topic:"pi/"+tablepin[node.pin], payload:node.buttonState};
node.send(msg);
}
}
}
});
}, 250);
}
});
}
else {
this.error("Invalid GPIO pin: "+this.pin);
}
if (this.pin) {
exec("gpio mode "+node.pin+" "+node.intype, function(err,stdout,stderr) {
if (err) node.error(err);
else {
node._interval = setInterval( function() {
exec("gpio read "+node.pin, function(err,stdout,stderr) {
if (err) node.error(err);
else {
if (node.buttonState !== Number(stdout)) {
var previousState = node.buttonState;
node.buttonState = Number(stdout);
if (previousState !== -1) {
var msg = {topic:"pi/"+tablepin[node.pin], payload:node.buttonState};
node.send(msg);
}
}
}
});
}, 250);
}
});
}
else {
this.error("Invalid GPIO pin: "+this.pin);
}
}
function GPIOOutNode(n) {
RED.nodes.createNode(this,n);
this.pin = pintable[n.pin];
var node = this;
RED.nodes.createNode(this,n);
this.pin = pintable[n.pin];
var node = this;
if (this.pin) {
process.nextTick(function() {
exec("gpio mode "+node.pin+" out", function(err,stdout,stderr) {
if (err) node.error(err);
else {
node.on("input", function(msg) {
if (msg.payload === "true") msg.payload = true;
if (msg.payload === "false") msg.payload = false;
var out = Number(msg.payload);
if ((out == 0)|(out == 1)) {
exec("gpio write "+node.pin+" "+out, function(err,stdout,stderr) {
if (err) node.error(err);
});
}
else node.warn("Invalid input - not 0 or 1");
});
}
});
});
}
else {
this.error("Invalid GPIO pin: "+this.pin);
}
if (this.pin) {
process.nextTick(function() {
exec("gpio mode "+node.pin+" out", function(err,stdout,stderr) {
if (err) node.error(err);
else {
node.on("input", function(msg) {
if (msg.payload === "true") msg.payload = true;
if (msg.payload === "false") msg.payload = false;
var out = Number(msg.payload);
if ((out == 0)|(out == 1)) {
exec("gpio write "+node.pin+" "+out, function(err,stdout,stderr) {
if (err) node.error(err);
});
}
else node.warn("Invalid input - not 0 or 1");
});
}
});
});
}
else {
this.error("Invalid GPIO pin: "+this.pin);
}
}
exec("gpio mode 0 in",function(err,stdout,stderr) {
if (err) {
util.log('[36-rpi-gpio.js] Error: "gpio" command failed for some reason.');
}
exec("gpio mode 1 in");
exec("gpio mode 2 in");
exec("gpio mode 3 in");
exec("gpio mode 4 in");
exec("gpio mode 5 in");
exec("gpio mode 6 in");
exec("gpio mode 7 in",function(err,stdout,stderr) {
RED.nodes.registerType("rpi-gpio in",GPIOInNode);
RED.nodes.registerType("rpi-gpio out",GPIOOutNode);
if (err) {
util.log('[36-rpi-gpio.js] Error: "gpio" command failed for some reason.');
}
exec("gpio mode 1 in");
exec("gpio mode 2 in");
exec("gpio mode 3 in");
exec("gpio mode 4 in");
exec("gpio mode 5 in");
exec("gpio mode 6 in");
exec("gpio mode 7 in",function(err,stdout,stderr) {
RED.nodes.registerType("rpi-gpio in",GPIOInNode);
RED.nodes.registerType("rpi-gpio out",GPIOOutNode);
GPIOInNode.prototype.close = function() {
clearInterval(this._interval);
}
GPIOInNode.prototype.close = function() {
clearInterval(this._interval);
}
GPIOOutNode.prototype.close = function() {
exec("gpio mode "+this.pin+" in");
}
GPIOOutNode.prototype.close = function() {
exec("gpio mode "+this.pin+" in");
}
});
});
});