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DigitalInput

automation_hat

Struct DigitalInput 

Source 
pub struct DigitalInput { /* private fields */ }
Expand description

Controls a digital input on the Automation HAT.

Digital inputs can read 5V signals from external devices. When a 5V signal is detected, the input reads as high (true). Each input can have an associated LED that automatically indicates the input state.

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impl DigitalInput

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pub fn new(line: Line, led: Option<LED>) -> Self

Creates a new digital input with automatic LED indication enabled.

§Arguments
  • line - GPIO line connected to the digital input
  • led - Optional LED indicator for this input
§Returns

A new DigitalInput instance with automatic LED indication enabled

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pub fn new_with_auto_light( line: Line, led: Option<LED>, auto_light: bool, ) -> Self

Creates a new digital input with configurable LED indication.

§Arguments
  • line - GPIO line connected to the digital input
  • led - Optional LED indicator for this input
  • auto_light - Whether the LED should automatically reflect the input state
§Returns

A new DigitalInput instance with the specified LED behavior

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pub fn read(&mut self) -> Result<bool, String>

Reads the current state of the digital input.

When auto_light is enabled and an LED is attached, this method will also update the LED to reflect the current input state.

§Returns
  • Ok(true) - If the input is high (5V signal detected)
  • Ok(false) - If the input is low (no signal)
  • Err(String) - If reading the input failed

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