Linked Questions
13 questions linked to/from Access GPIO pins without root. No access to /dev/mem. Try running as root!
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Why do I need to run GPIO as root even with GPIO Ver 0.6.2? [duplicate]
Trying to use GPIO in Python, but it only works if I change to root. Why? The description for GPIO Ver 0.6.2 indicates that root is no longer needed?
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Accessing gpio not working as non-root. "Can't open /dev/mem: : Permission denied"
I am attempting to get a c++ program to access the gpio as non-root. I am on a raspi 2 running Jessie. I followed the instructions on issue: Access GPIO pins without root. No access to /dev/mem. Try ...
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RuntimeError: No access to /dev/mem. Try running as root!
I'm new to RPI and to Python 3 and I have a problem running this code on a RPI 2.
import RPi.GPIO as GPIO
import time
GPIO.setmode(GPIO.BCM)
GPIO.setwarnings(False)
redled = 4
greenled = 26
GPIO....
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RuntimeError: No access to /dev/mem
I'm using the PXfmini with the raspberrypi3 for a project and I need to use mavros and python code.
My operative system is Frambuesa.
I created the catkin workspace and I tested the c++ file ...
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What sets ownership and privileges on /dev/gpiomem?
This post has a nice solution for using GPIO (and I2C) without root-privileges. This is useful if you're running an (web) app in a virtual environment as some ve-user, so as to shield off your whole ...
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Accessing GPIO from lighttpd server not working
I have installed lighttpd on the Pi, and configured it to run web.py using fastcgi. Accessing python scripts from the browser works. But when I add the code to access GPIO, it fails with the following:...
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Set permissions and group for /dev/gpiomem permanently [duplicate]
I need to allow my user access to the GPIO pins and found following solution.
Access GPIO pins without root. No access to /dev/mem. Try running as root!
This works perfectly. All I need to do is ...
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Can you control raspberry pi GPIO pins from a html website
I would like to be able to connect a html website to the GPIO pins so that when a button is pushed on the website it turns on a GPIO pin on the pi. I am also wondering if it is possible to take data ...
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Permission issue accessing /dev/mem – gpio node-rpio
I am somewhat of a newbie, so please let me know if there is a way I can go about this better.
I'm working on doing some LED coding (WS8201 strip) with node.js and it appears I am having trouble ...
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Allowing uwsgi to make GPIO calls
I've got a Raspberry Pi Zero W acting as a Flask python server that listens for webhooks, then runs a function to turn on a motor until the GPIO pins read a certain combination of inputs. I used to ...
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WS281x library cannot access /dev/mem without root
I get this error from the rpi_ws281x library when trying to run as user pi (this is a java wrapper around the library):
16:43:59.060 [main] INFO com.github.mbelling.ws281x.Ws281xLedStrip - LEDs count:...
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Python, RpiZero and gpiozero
I'm coding on Rpi3 using python3. When trying to run a code, containing a gpiozero lib - it fails when running on RpiZero, while succeeds on Rpi3.
RpiZero contains gpiozero lib
Trying to find the ...
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Can't change ownership of '/dev/gpiomem' in a docker container in RPi
I'm trying to run a simple docker container with a python base image to control the LEDs on my RPi4.
The Dockerfile compiles fine and I'm running it as follows: docker run --rm -ti --privileged --...
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