Module esp32_hal::i2c

source ·
Expand description

§I2C Driver

§Overview

The I2C Peripheral Driver for ESP chips is a software module that facilitates communication with I2C devices using ESP microcontroller chips. It provides an interface to initialize, configure, and perform read and write operations over the I2C bus.

The driver supports features such as handling transmission errors, asynchronous operations, and interrupt-based communication, also supports multiple I2C peripheral instances on ESP32, ESP32H2, ESP32S2, and ESP32S3 chips

§Example

Following code shows how to read data from a BMP180 sensor using I2C.

// Create a new peripheral object with the described wiring
// and standard I2C clock speed
let mut i2c = I2C::new(
    peripherals.I2C0,
    io.pins.gpio1,
    io.pins.gpio2,
    100u32.kHz(),
    &clocks,
);
loop {
    let mut data = [0u8; 22];
    i2c.write_read(0x77, &[0xaa], &mut data).ok();

    println!("{:02x?}", data);
}

Structs§

  • I2C
    I2C peripheral container (I2C)

Enums§

  • Error
    I2C-specific transmission errors

Traits§