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Digital Input

Get logical value of digital input pin

Library

Simulink Support Package for Arduino® Hardware/Common

Description

Get the logical value of a digital pin on the Arduino hardware:

  • If the logical value of the digital pin is LOW (0 V), the block output emits 0.

  • If the logical value of the digital pin is HIGH (5 V or 3.3 V, depending on the board voltage), the block output emits 1.

The data type of the block output is boolean.

During simulations without the hardware, this block emits zeroes.

Parameters

Pin number

Enter the number of the digital pin.

Do not assign the same pin number for different types of blocks as this may cause resource management conflicts.

Click View pin map to open the Arduino Pin Mapping table.

To know how to assign pins or to know about the fixed pins for the block, see Arduino Pin Mapping for Timer Independent Blocks.

Sample time

Specify how often this block reads the pin value, in seconds. Enter a value greater than zero. This value defaults to a sample time of 0.1 second. The minimum value is 0.000001 second.

Smaller values require the processor to complete the same number of instructions in less time, which can cause task overruns.