PIN16 Still Reading High When Normally Closed Switch is Open

Robotics & Edge Computing Jetson & Embedded Systems Jetson Orin NX
1

I have a normally closed contact switch between PIN16 and PIN17 (PIN17 is 3.3V, and PIN16 is set as input). When the switch is open, PIN16 still reads high instead of low.

What could be causing this? Is it related to pull-up/down resistors or GPIO configuration?

Thanks!

3

Please try a pull-up resistor not a power supply directly.

4

Hello,should I connect an external pull-up resistor to PIN16?Thanks

5

Yes, a pull-up on PIN16 is recommended.

7

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