Struct LatchRelay 

pub struct LatchRelay<I2C> { /* private fields */ }

Driver for the Modulino Latch Relay module.

A latching relay maintains its state (on/off) even when power is removed.

Example

use modulino::LatchRelay;

let mut relay = LatchRelay::new(i2c)?;

// Turn on the relay
relay.on()?;

// Check state
if relay.is_on()? == Some(true) {
    println!("Relay is ON");
}

// Turn off the relay
relay.off()?;

Implementations

impl<I2C, E> LatchRelay<I2C>

where I2C: I2c<Error = E>,

pub fn new(i2c: I2C) -> Result<Self, E>

Create a new LatchRelay instance with the default address.

pub fn new_with_address(i2c: I2C, address: u8) -> Result<Self, E>

Create a new LatchRelay instance with a custom address.

pub fn address(&self) -> u8

Get the I2C address.

pub fn on(&mut self) -> Result<(), E>

Turn the relay on.

pub fn off(&mut self) -> Result<(), E>

Turn the relay off.

pub fn set(&mut self, on: bool) -> Result<(), E>

Set the relay state.

pub fn toggle(&mut self) -> Result<(), E>

Toggle the relay state.

pub fn is_on(&mut self) -> Result<Option<bool>, E>

Check if the relay is currently on.

Returns:

• Some(true) if the relay is on
• Some(false) if the relay is off
• None if the state is unknown (e.g., after power cycle before first command)

pub fn release(self) -> I2C

Release the I2C bus.