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Locked Re: BD20 crossing signals


 

Correct, the VCC connection should go to a digital pin instead. Such as pin 3.
VCC should go to 6V to 12V Auduino power supply. Always on.
The Arduino sketch should monitor the pin, and activate whatever logic when the pin changes. In my sketch, that would be flashing lights, say on pins 4 and 5, and sound module activation on pin 7.
You do not turn on your computer to run a program (usually).
Thomas
DeSoto, TX

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