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@nherment
Created November 24, 2014 20:51
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beaglebone temperature/humidity monitor with metrano
var exec = require('child_process').exec
var Metrano = require('metrano)
var metrano = new Metrano('http://ice:3000/')
///home/nherment/Adafruit_Python_DHT/examples/AdafruitDHT.py 22 P8_11
exec('/home/nherment/Adafruit_Python_DHT/examples/AdafruitDHT.py 22 P8_11', function(err, stdout, stderr) {
if(err) {
console.log(err);
}
if(stderr) {
console.error(stderr)
}
if(stdout) {
console.log('>', JSON.stringify(stdout));
var match = /^Temp=(\d*\.?\d*)\*C\s+Humidity=(\d*\.?\d*)\%$/m.exec(stdout)
try {
var temperature = parseFloat(match[1]);
var humidity = parseFloat(match[2]);
console.log('h:', humidity, 't:', temperature);
metrano.save('temperature', 'beaglebone', temperature, Date.now(), function(err) {
if(err) {
console.log(err)
} else {
console.log('.');
}
})
metrano.save('humidity', 'beaglebone', humidity, Date.now(), function(err) {
if(err) {
console.log(err)
} else {
console.log('.');
}
})
} catch(err) {
console.log(err);
}
}
})
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