Digital Read

Read logical state of digital input pin

• Library:

• Simulink Coder Support Package for BBC micro:bit/Basic

  Simulink Coder Support Package for STMicroelectronics Nucleo Boards/ Common

  Simulink Coder Support Package for STMicroelectronics Discovery Boards/ STM32F746G-Discovery

  Simulink Coder Support Package for STMicroelectronics Discovery Boards/ STM32F769I-Discovery

• 

Description

The Digital Read block outputs the logical state of a specified digital pin on the board.

During the external mode simulation, the block outputs the simulation results returned from the executable running on the target hardware.

During simulation in all other modes, the block outputs zeroes.

Ports

Output

Port_1 — Output signal

scalar

The port outputs the logical state of the digital pin on the board that you specify in the Pin parameter.

Parameters

Pin — Pin number of the digital input

Specify the digital pin.

To open the pin mapping table, click View pin map.

Make sure to assign different pin numbers to the different blocks of your model.

Sample time — Frequency at which the block reads the input pin value

-1 (default)

Specify in seconds how often this block reads the pin value.

When you specify this parameter as-1, Simulink® determines the best sample time for the block based on the block context within the model.