#adc #async #driver #embedded-devices #no-alloc

no-std mcp3424

Async Rust driver for the MCP3422/3/4 ADC

2 unstable releases

0.2.0 Jul 2, 2024
0.1.0 Jun 27, 2024

#1574 in Embedded development

41 downloads per month

Apache-2.0

55KB
966 lines

github docs.rs crates.io

MCP3424

This crate provides an async Rust driver for the MCP342[2/3/4] ADC, based on the embedded-hal traits.

The MCP3422, MCP3423 and MCP3424 are low-noise, high accuracy delta-sigma A/D converter with differential inputs, on-board precision 2.048V reference voltage and up to 18 bits of resolution. The devices offer a two-wire I2C compatible serial interface.

Status

  • One-Shot conversions.
  • Continuous conversions.
  • Configuration:
    • Programmable gain amplifier (PGA)
    • Resolution / Sample Rate
    • Channel
  • Async API
    • Future based
    • Stream based (optional)
  • Defmt integration (optional)
  • UOM integration (optional)

Appetizer

Trigger a one-shot conversion and awaits the result:

use mcp3424::{MCP3424, Configuration, OneShotMode};

let mut adc = MCP3424::new(i2c, 0x68, Delay, OneShotMode::new(&Configuration::default()));

match adc.measure().await {
    Ok(value) => println!("Measured value: {:?}", value),
    Err(_) => println!("Failed to measure"),
}

Documentation

License

Licensed using the Apache License Version 2.0.

Contributing

All contributions are welcome. Any contribution intentionally submitted for inclusion in this crate by you, as defined in the Apache-2.0 license, shall be licensed without any additional terms or conditions.

Dependencies

~77–630KB
~11K SLoC