From Wiring

Jump to: navigation, search
This page is intended as a reference for core developers only, and the content is only changed after a consensus has been reached through discussion of any such changes. Please use the Discussion page to talk about any changes or issues you have with the current implementation.
Classification Digital Port Function
Suggested location WDigital.h
C++ required No
Timing constraints None
Version introduced 1.0 (0100)
Framework dependencies None
void portWrite(uint8_t, uint8_t)
Required? Yes
Issues None



The portWrite() function/method sets the digital value the provided port number to either HIGH or LOW.

Black Box Input

The port number and value is provided.

Black Box Output

If possible, the port is set as either HIGH for a digital "high" value, and LOW for a digital "low" value.


None. Single signature only.


The Atmel AVR8Bit core uses look-up tables to translate the input pin to a port number and a port bit value.

Proposed Changes

Personal tools