You can read the state of a button using Arduino and a few lines of code. The actual state is shown in the Serial Monitor window as 0 or 1, 0 meaning the button is not pressed and 1 that the button is ...
[Paul] wrote in to tell us about some interesting Arduino latency issues he helped nail down and fix on the Arduino. It seems that [Michu] was having some problems with controlling his Rainbowduino ...
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