var app = require('http').createServer(handler);
var io = require('socket.io').listen(app);
var fs = require('fs');
var b = require('bonescript');
app.listen(1000);
// socket.io options go here
io.set('log level', 2); // reduce logging - set 1 for warn, 2 for info,3
for debug
io.set('browser client minification', true); // send minified client
io.set('browser client etag', true); // apply etag caching logic basedon
version number
console.log('Server running on: http://' + getIPAddress() + ':1000');
//pwm pin
var pwmPin1 = "P9_14";
var pwmPin2 = "P8_19";
//motor 1
var ain1Pin = "P9_13";
var ain2Pin = "P9_15";
//motor 2
var ain1Pin2 = "P8_10";
var ain2Pin2 = "P8_12";
// configure pins
b.pinMode(pwmPin1, b.OUTPUT);
b.pinMode(pwmPin2, b.OUTPUT);
b.pinMode(ain1Pin, b.OUTPUT);
b.pinMode(ain2Pin, b.OUTPUT);
b.pinMode(ain1Pin2, b.OUTPUT);
b.pinMode(ain2Pin2, b.OUTPUT);
function handler (req, res) {
fs.readFile('Project 16.html', // load html file
function (err, data) {
if (err) {
res.writeHead(500);
return res.end('Error loading index.html');
}
res.writeHead(200);
res.end(data);
});
}
io.sockets.on('connection', function (socket) {
// listen to sockets and write analog values to PWM pins
socket.on('pwmPin', function (data) {
console.log(data);
if (data.value >50){
forwards((data/100 - 0.5) * 2);
console.log("Forwards");
}
else {
backwards ((0.5 - data/100) * 2);
console.log("backwards");
}
});
});
function forwards(duty) {
var value = duty;
//Arm motors
b.analogWrite(pwmPin1, value);
b.analogWrite(pwmPin2, value);
//Write values
b.digitalWrite(ain1Pin, 1);
b.digitalWrite(ain2Pin, 0);
b.digitalWrite(ain1Pin2, 1);
b.digitalWrite(ain2Pin2, 0);
}
function backwards(duty) {
var value = duty;
//Arm motors
b.analogWrite(pwmPin1, value);
b.analogWrite(pwmPin2, value);
//Write values
b.digitalWrite(ain1Pin, 0);
b.digitalWrite(ain2Pin, 1);
b.digitalWrite(ain1Pin2, 0);
b.digitalWrite(ain2Pin2, 1);
}
// Get server IP address on LAN
function getIPAddress() {
var interfaces = require('os').networkInterfaces();
for (var devName in interfaces) {
var iface = interfaces[devName];
for (var i = 0; i < iface.length; i++) {
var alias = iface[i];
if (alias.family === 'IPv4' && alias.address !== '127.0.0.1' &&
!alias.internal)
return alias.address;
}
}
return '0.0.0.0';
}
and here is the HTML software for this project...
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>BBB and Geaux!</title>
<script src="/socket.io/socket.io.js"></script>
<script>
var socket = io.connect();
// Send data through socket
function pwmPin(value){
socket.emit('pwmPin', value);
}
</script>
</head>
<body>
<div data-role="page" id="page1">
<div data-theme="a" data-role="header">
<h3>
BeagleBone Black
</h3>
</div>
<div data-role="content">
<div data-role="fieldcontain">
<label for="slider1">
Geaux!
</label>
<input id="slider1" type="range" name="slider" value="50"
min="0" max="100"
data-highlight="false" data-theme="b" onChange="pwmPin(value);">
</div>
</div>
</div>
</body>
</html>
If there are some software debuggers out there that know how to work around
my error codes, let a brother know. Thank you.
Seth
On Monday, October 17, 2016 at 10:13:20 PM UTC-5, Mala Dies wrote:
>
> Hello,
>
> I am working out of a book. It is called "30 Beaglebone Black Projects for
> the Evil Genius." The author has a GitHub.com page online at
> https://github.com/ChristopherRush/BB-Evil-Genius. I am on Project16.js
> and Project16.html. I have gotten scores of error codes. I have been
> unsuccessful updating my Bonescript and Socket.io languages on the BBGW.
>
> If there are any people out there working out of this specific book,
> please join in. I can sure use some advice and further understanding.
>
> I know it is me that cannot make the software work with my current
> configuration(s).
>
> Seth
>
> P.S. If you need additional info, please contact me. Thank you and Geaux
> Cajuns!
>
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