8 releases

0.1.7 Mar 12, 2020
0.1.6 Mar 12, 2020

#1531 in Hardware support

Apache-2.0 OR MIT

21KB
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pzem004t

crates.io docs.rs license license Rust

An embedded-hal driver for the PZEM004T energy monitor.

A CLI for the library is available and can be run on all major operating systems (uses serialport crate).

Examples

Examples can be found in the examples/ directory.

Read the measurements off the sensor every second

let mut pzem = pzem004t::Pzem::new(serial, None).unwrap();
let mut m = pzem004t::Measurement::default();
loop {
    match pzem.read(&mut m, Some((&mut tim, TIMEOUT))) {
        Err(e) => hprintln!("Could not read PZEM004T: {}", e).unwrap(),
        Ok(()) => {
            hprintln!("Voltage: {:.1} V", m.voltage).unwrap();
            hprintln!("Current: {:.3} A", m.current).unwrap();
            hprintln!("Power: {:.1} W", m.power).unwrap();
            hprintln!("Energy: {:.3} kWh", m.energy).unwrap();
            hprintln!("Frequency: {:.1} Hz", m.frequency).unwrap();
            hprintln!("Power factor: {:.2}", m.pf).unwrap();
            hprintln!("Alarm: {}\n", m.alarm).unwrap();
        }
    }

    tim.start(1.hz());
    block!(tim.wait()).unwrap();
}

License

This project is licensed under either of

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in hexi by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

Dependencies

~93KB