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Topic: How to utilize multiple path buttons *solved* (Read 456 times) previous topic - next topic


Dec 29, 2014, 02:53 pm Last Edit: Dec 29, 2014, 05:27 pm by dewme5
I am attempting to rebuild a toy bulldozer.  This toy came with a set of buttons to flash lights, make sound, preset movements. This is a one sided PCB, with conductive pad buttons.

There are 8 functions from only 6 wires.
b1 = yellow and white
b2 = black and white
b3 = red and white
b4 = yellow and brown
b5 = black and brown
b6 = red and blue
b7 = yellow and blue
b8 = black and blue

Is there a way to make use of all the buttons through the Arduino Uno, without cutting traces and re-soldering.  I'm enjoying the challenge, but my skill set is low enough, that I'm having a tough time finding the terms I would need to search to find the correct answer. *so


Dec 29, 2014, 03:42 pm Last Edit: Dec 29, 2014, 05:33 pm by dewme5
Matrix keypad was the term I needed to search.   While looking fruitlessly in the wrong direction, I stumbled across, and added this library. Phi_interfaces

I'm sure my code isn't perfect, but it's off to a good start.   I was able to name each button, and assign a specific action.

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