lgpio GPIO.setup fails with 'GPIO not allocated' when run from a …
Aug 20, 2024 · 0 I've a flask webserver on a Raspberry Pi 5 that I'm using to control a motor via the GPIO pins. This was working fine, but has now stopped for reasons that I'm trying to get to …
How to read a PWM signal via GPIO on PI 5?
Apr 13, 2025 · I have custom-made a compact push-type PWM signal generator that operates on 3.3V power and outputs a 50Hz PWM signal with a duty cycle ranging from 0% to 100%. I …
Future of GPIO access on Pi5 - Raspberry Pi Stack Exchange
Nov 18, 2023 · The Raspberry Pi Model 5 was introduced at the end of 2023. It only works with Raspberry Pi Bookworm OS or later However, the biggest impact for most developers is that …
Raspberry pi 5 GPIOZERO
Aug 2, 2024 · 0 I just started learning how to use the raspberry pi. One of the first issues I encountered with the raspberry pi was that the most common library (the one that all tutorials …
GPIO chip Device or resource busy error - Raspberry Pi Stack …
Jul 25, 2024 · I am trying to control a E-Paper display using my Raspberry Pi 5. I want to use the gpiod library since it seems to be the best option (especially since RPi.GPIO is not supported …
How do I supply power through the GPIO? - Raspberry Pi Stack …
I have seen some examples of people powering their Raspberry Pis by wiring a DC "barrel plug" style power supply to the 5V and GND GPIO pins. What considerations should be taken when …
High Impedance state for GPIO - Raspberry Pi Stack Exchange
Sep 14, 2020 · Thanks for contributing an answer to Raspberry Pi Stack Exchange! Asking for help, clarification, or responding to other answers. Making statements based on opinion; back …
How fast can GPIO pins toggle? - Raspberry Pi Stack Exchange
Aug 8, 2018 · The test was performed on a Raspberry Pi 3b, reading signals generated from a Lattice MachXO2-4000 FPGA Both libraries perform well for frequencies of up to 5 KHz with …
What is a pull up resistor? What does it do? And why is it needed?
Jan 19, 2013 · 30 I have come across many simple circuits that show how to switch on an LED or something else. Pull up resistors are often mentioned. What do they do? Some GPIO pins …
Current proper way to interface GPIO from C code? - Raspberry Pi …
Mar 26, 2024 · The old /sys/class/gpio way is deprecated and there's a rag-tag bunch of libraries that appear to have sprung up, none of which have much of an air of officialdom about them, …