I'm trying to repurpose this 7 button PCB for my current project, the only issue so far is I have no Idea how to hook it up. As yall can see from the pictures below it consist of 7 momentary switches and a few passive resistors, diodes and a capacitor or two yet only has a two wire hookup.
Is this able to generate a signal other than high/low for the entire board? If so, can I read this data with an UNO(I also have a pro mini on hand)so I can assign functions?
Thanks in advance for any advice you can give.
If these images are too big please let me know. Some forums have policies against full sized pics but its hard to read a chip number onscreen as is.