Understanding GPIO analog and digital - Electrical Engineering …
Mar 28, 2014 · A GPIO pin is a 'general purpose input/output' pin. This is by default only high or low (voltage levels, high being the micro controller's supply voltage, low usually being ground, …
Raspberry Pi OS - Raspberry Pi Documentation
Raspberry Pi OS is a free, Debian-based operating system optimised for the Raspberry Pi hardware. Raspberry Pi OS supports over 35,000 Debian packages. We recommend …
microcontroller - STM32 Understanding GPIO Settings - Electrical ...
Feb 25, 2015 · GPIO Speed is the maximum frequency the GPIO can produce. Lower settings can save power. Output type is whether the pin asserts highs and lows (push pull), or whether …
gpio - STM32F103 PC13 on Output mode not work - Electrical …
I using STM32F103C8, I want to use PC13 in GPIO mode (RTC is active). The register ODR13 changes, but the logical value of the PIN does not change. static void MX_GPIO_Init(void) {
Newest 'gpio' Questions - Electrical Engineering Stack Exchange
GPIO is an acronym for general purpose input/output. The term is typically applied to a pin on a microcontroller (or other device) that may be changed between an input and output under …
Is there a difference between PIO and GPIO pins?
Jul 18, 2019 · These things are pretty much unrelated to each other. GPIO is a General Purpose IO - meaning these are not connected to a specialized interface. PIO is Programmable IO, …
ESP32 GPIO [0] number 2 pin is reserved - Electrical Engineering …
May 9, 2025 · ESP32 GPIO [0] number 2 pin is reserved Ask Question Asked 1 month ago Modified 1 month ago
gpio - Pull-up and pull-down resistances technology in …
Jan 30, 2025 · I am making measurements for the characterization of pull-up and pull-down resistances in microcontrollers GPIO interface. I am currently working on a STM32 …
UART GPIO Expanders - Electrical Engineering Stack Exchange
May 22, 2024 · The problem with UART-based GPIO expanders is that you need two pins for communicating with it, and then you need the two devices to communicate within tolerance of …
Scratch 2.0: all-new features for your Raspberry Pi
Jun 27, 2017 · Scratch 2.0 is now available on the Raspberry Pi. Control GPIO pins, webcams and microphones, edit images and sound and more!