Hello I'm using Teensy 3.6 on a custom PCB as a midi controller, using 8 CD74HC4067SM96 Multiplexers Daisy chained (4 and 4), so 2 analog and 2 digital in each chain. I have a about 26 tactile push buttons on the PCB, all working fine, I created JST connection on board to connect external arcade …

Help.. Digitalread not stable from some buttons (with internal Pull-Up)

arduinolover30 August 23, 2021, 10:45am 5

The wires are short, about 30cm max...
Should I add an external pull up resistor between the switch signal and VCC? 10k should do ?

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