MicroSquirt.com read only forum (Jan.15,2018)

I have a question about the tach output wire that comes from the microsquirt, it is the green/yellow wire. Does anyone know what kind of signal it puts out?

0 to 12 volt square wave.

Thanks Matt,

I am wanting to use that wire to signal a board to allow the board to read the rpms of the machine and send a signal out to run a servo to control a power valve.