PUBLIC MARKS with tags arduino & twitter

We thought it appropriate to allow Twitter to be more than just an on monitor phenomena. To accomplish this we have combined an Arduino, Ethernet Shield and typewriter. We added a little bit of solder (we’re spoofing keystrokes) and some coding (available here) and what we have is a twitter monitoring machine.

This is an overview of the hardware/software/services I used:

Sensor > Arduino > Processing > PHP > Twitter

A LDR (light dependent resistor) is glued on the on/off led of the coffeemachine. When the coffeemachine is switched on the led turns on, the ldr detects this light. This LDR is connected to an Arduino microcontroller, Processing reads the value from the Arduino using Firmata and Processing sends this to a php file which will send it to Twitter.