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?
Thanx
Safely Testing RPi GPIO
Moderators: adafruit_support_bill, adafruit
Please be positive and constructive with your questions and comments.
- dastels
- Posts: 15662
- Joined: Tue Oct 20, 2015 3:22 pm
Re: Safely Testing RPi GPIO
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
Dave
Please be positive and constructive with your questions and comments.