Malhar DeshmukhTested with 5.1K row resistor and 1K column resistor
Result:
keys 1 to 9 work. As we move to down right corner, the stability decreases. May need to tweak resistor values.
First test
A project log for OneWireKeypad adapter
A simple board to convert matrix keypad with 8 pins to use only one ADC pin and VCC-GND.
Discussions
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