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, …
Do we really need a resistor in series for the digital pins of a ...
May 29, 2025 · It recommends the use of a 1K resistor in series termination for the communication (SPI) and regular GPIO pins. Is it even necessary ? If it is a crutial protection …
microcontroller - Electrical Engineering Stack Exchange
Jul 16, 2024 · Hello guys I'm relatively new to Embedded engineering. I wanted to know if there's any specific rule that experienced embedded engineers use when selecting when to use one …
What is gpio bank? - Electrical Engineering Stack Exchange
Nov 12, 2021 · GPIO pins on microcontrollers and FPGAs are often grouped together in what is sometimes referred to as a "Bank". All the pins within a bank will have their own power supply …
microcontroller - Push-pull/open drain; pull-up/pull-down
Apr 22, 2016 · Of all the GPIO registers available, I do not understand two: GPIO_PUPDR and GPIO_OTYPE which are respectively the "pull-up/pull-down register" and the "output type …
Configuration - Raspberry Pi Documentation
The official documentation for Raspberry Pi computers and microcontrollers
GPIO Input not working with STM32 Blue Pill
Feb 18, 2025 · I am trying to take a digital input from pin B12 (PB12) to control the internal LED of the STM32 Blue Pill (STM32F103C8T6) board at pin C13 (PC13). The B12 pin is set to High-Z …
arduino - ESP32-C3 Deep Sleep Wakeup (HIGH) - Electrical …
Jan 18, 2025 · It does mention that the GPIO ports are capable of waking the device from deep sleep. As far as your last comment, given the 3.3v is at GPIO2 when the switch is open, …
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 …
Treating an STM32 MCU's unused pins and reset state
Jul 13, 2024 · The answer is in the data sheet page 62. It says to avoid current consumption of floating IO pins, they must be configured as analog pins, or forced to some value by using …