I ordered one directly and there I was playing with lights, sensors, etc. But then? ..... it has the potential to control everything, but what? What should I make?
I think this is where more people get stuck. What should I do with it?
Coincidently I just finished constructing a coffee roaster, made from an ordinary popcorn machine. In basic it works by a fan blowing air past a heating element through the green coffee beans. By controlling the fan speed, I was able to control the temperature of the air roasting the beans. But, the roasting process turned out to be quite hands on, as the temperature needed to be kept constant following a profile, which was done by measuring the temperature the whole time and adjusting the fan speed with a pot meter.
That, I thought, should be automated....
Step 1: Materials used
-1x Arduino Duemilanove
-1x Arduino protoshield v2 (sparkfun) with breadboard
-1x 12x2 LCD screen (use a parallel one, would recommend a serial LCD)
-1x electric popcorn machine
-4x 1KOhm resistors
-1x small push button
-2x 1KOhm potmeter variable resistor
-1x temperature sensor ZTK 33 V/7 mA
-1x solid state relais S216S02 (sharp)
-19V adapter (used the one of my laptop)
-plugs, wires, etc