Topic: Trigger for Arduino from Flash widget
I would like to trigger an action with the Arduino from my Flash widget. (p.e. if i press a button on the Chumby, the arduino lights an LED for 5 seconds..).
As I only need one trigger and I have zero knowledge in linux programming I try to avaoid a "real" serial communication between the chumby and the arduino as described in other posts here.
To give you an example, I used the headphone jack and my Flash widget played a sound, the arduino read its analog input and started the action. This worked perfectly well as long as the Arduino used another power source, but as soon as I powered the arduino from the chumby via USB it made some strange noises and the trigger did't work anymore. (I think it has sth. to do with a kind of interference between the sound and the power loop..?).
Can anyone think of a way to avoid the above mentioned interference?
Or another way to send a signal to the arduino (somehow via usb)?