I am new to the arduino world
I want to build arduino based gps "speed sensor" to be connected with my CMD data logger in my boat.
I managed to get the speed from the GPS but can't figure out how to output 0-5v square wave pulse with 8000 ppm so the CMD will get the speed info from the GPS
I am kindly asking for help and example hot to translate the speed from the GPS to 0-5v square wave pulse
Any help will be appreciated
Thank you very much in advance