Need some help, setting up a relay that will turn on and off my 3d printer. I currently have the trigger attached to PIN3 on the 7J1 board. I can’t seem to change pin output. Here’s what I try
gpioget 0 5
result: 1
gpioset 0 5=0
gpioget 0 5
result: 1
what am I doing wrong
The gpioget is for input only, you have to keep track of the output pin’s value yourself. Have you tried blinking an led with that pin?
gpioset sets the pin to 3.3V or 0V.
gpioget sets the pin to high impedance mode and reads the voltage.
Your understanding of GPIO is incorrect.