Safely Testing RPi GPIO

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mennochio
 
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Safely Testing RPi GPIO

Post by mennochio »

If I have the GPIO pins on a Raspberry Pi Model 3 B+ configured as inputs, can I connect them directly to the board's own ground or 3.3 vdc to test response, or do I need to use a resistor inline?
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dastels
 
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Re: Safely Testing RPi GPIO

Post by dastels »

Connecting to 3.3v or ground is fine to generate high/true and low/false input values. Be careful fiddling with the GPIO pins, though, as they are fairly sensitive to static electricity damage. See https://learn.adafruit.com/raspberry-pi ... ng/warning.

Dave

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