i was wondering if anyone has a done a 1 pin ADC of 16 key matrix keyboard using a membrane keypad . I have not used many membrane keyboards , and wondered if the resistance varies a lot of per switch / batch ?
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Re: another way to get a keyboard matrix to work off 1 adc pin
i was wondering if anyone has a done a 1 pin ADC of 16 key matrix keyboard using a membrane keypad . I have not used many membrane keyboards , and wondered if the resistance varies a lot of per switch / batch ?
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