mpu6050/README.md

MPU 6050 Rust Driver

Platform agnostic driver for MPU 6050 sensor using embedded_hal.

Basic usage - linux_embedded_hal example

use mpu6050::*;
use linux_embedded_hal::{I2cdev, Delay};
use i2cdev::linux::LinuxI2CError;

fn main() -> Result<(), Error<LinuxI2CError>> {
    let i2c = I2cdev::new("/dev/i2c-1")
        .map_err(Error::I2c)?;

    let delay = Delay;

    let mut mpu = Mpu6050::new(i2c, delay);
    mpu.init()?;

    loop {
        // get roll and pitch estimate
        match mpu.get_acc_angles() {
            Ok(r) => {
                println!("r/p: {:?}", r);
            },
            Err(_) => {} ,
        }

        // get temp
        match mpu.get_temp() {
            Ok(r) => {
                println!("temp: {}c", r);
            },
            Err(_) => {} ,
        }

        // get gyro data, scaled with sensitivity 
        match mpu.get_gyro() {
            Ok(r) => {
                println!("gyro: {:?}", r);
            },
            Err(_) => {} ,
        }
        
        // get accelerometer data, scaled with sensitivity
        match mpu.get_acc() {
            Ok(r) => {
                println!("acc: {:?}", r);
            },
            Err(_) => {} ,
        }
    }
}

Compile linux example

• full file here
• Requirements f: apt-get install -qq gcc-arm-linux-gnueabihf libc6-armhf-cross libc6-dev-armhf-cross
• cross-compile with cargo build --bin main --target=arm-unknown-linux-gnueabihf

TODO

• init with default settings
• init with custom settings
• device verification
• basic feature support as described here
• read gyro data
• read acc data
• software calibration
• roll, pitch estimation accelerometer only
• read temp data
• rename constants to better match datasheet
• complementary filter for roll, pitch estimate
• sample rate devider with register 25? time step?
• timer/clock control with PWR_MGMT_2
  • internal clock, register 108 POWER_MGMT_2, will cycle between sleep mode and waking up to take a single sample of data from active sensors at a rate determined by LP_WAKE_CTRL (page 41-43)
• plotting csv data?