Digital Read

Read logical state of digital input pin

Libraries:
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

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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

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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 name 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.