About 41,600 results
Open links in new tab
  1. Rpi Python I2C IOError: [Errno 121] Remote I/O error Problem.

    Apr 28, 2019 · I am trying to read analog data from a potentiometer using I2C connection between the pi and adc board using python code. Below is my code so far: import time import smbus …

  2. What are the min/max voltage/current values the gpio pins can …

    Oct 16, 2012 · The Raspberry Pi's GPIO pins are quite versatile, and you can modify many of their characteristics from software. You can turn on/off input pin hysteresis, limit output slew …

  3. What is the maximum current the GPIO pins can output?

    A Raspberry Pi pin (GPIO) gives me a 23 mA max current (3.43 V) when I set it to on (using pi4j or RPI.GPIO). I think the maximum permitted is 30 mA, otherwise your Raspberry Pi is dead.

  4. How fast can GPIO pins toggle? - Raspberry Pi Stack Exchange

    Aug 8, 2018 · I'm currently using Python's RPi.GPIO module to toggle some pins, and I want to know how quickly it can do this. I need the pins to be toggled on the schedule of a ~50 mhz …

  5. GPIO Voltage Thresholds - Raspberry Pi Stack Exchange

    Apr 24, 2015 · That is the case for the Raspberry Pis. However, some of the other platforms (e.g. "Compute Modules") have a configurable supply voltage for the GPIO (VDD IO) that ranges …

  6. How to extend more IO from a Raspberry Pi board?

    Jan 11, 2021 · The board receive RS485 signal from Raspberry and control locks by turning on and off lock current. However, I still need 34 IOs connecting to 34 inching switches, but a …

  7. Raspberry Pi 3 high IO

    Jul 24, 2020 · 2 my Raspberry Pi 3 is currently suffering from a very high IOWait. Running iotop gives me the following: It's listing some perl process but I have no idea what it is or why it's …

  8. How to access Serial Console on Rtaspberry Pi CM4?

    Mar 8, 2022 · I have a RPi CM4 Lite and IO Board. I am trying to access serial console using USB to TTL Rs232 Module Converter Serial Cable Adapter Serial cable. I have connected Black …

  9. USB not working for CM4S - Raspberry Pi Stack Exchange

    Mar 13, 2024 · Previous setup: I have a Compute Module IO Board Plus designed by WaveShare. When I'm plugging in a CM3+, USB works fine. I also have a board I designed that has the …

  10. SOLVED Buffer I/O error on dev sda1 - Raspberry Pi Stack Exchange

    May 22, 2015 · In the last month or so, one of my external hard drives has stopped working properly with my Raspberry Pi. It works for a while, then it stops working randomly. I ran ls on …