avr-bme280

Library based on avr-hal

Using

First you need to add this crate as dependence:

[dependencies]
avr-bme280 = { git = "https://github.com/jacksonn97/avr-bme280" }

Then you can use library just like:

use avr_bme280::i2c::BME280; // you can change i2c to spi as you want
let mut bme280 = BME280::init(&mut i2c, 0x76); // specify your i2c bus and address of sensor
                                               // for spi is spi bus and SS pin
let measure = bme280.get_measures(&mut i2c);
           // Return type is structure with temperature, humidity as pressure

Connection SPI

Board pin1	Sensor pin
SCK 13	SCL
MOSI 11	SDA
MISO 12	SDO
SS 10	CSB

You can you SPI definition like this:

let (mut spi, ss) = Spi::new(dp.SPI,
    pins.d13.into_output(),
    pins.d11.into_output(),
    pins.d12.into_pull_up_input(),
    pins.d10.into_output(),
    spi::Settings {
        data_order: arduino_hal::spi::DataOrder::MostSignificantFirst,
        clock: arduino_hal::spi::SerialClockRate::OscfOver4,
        mode: embedded_hal::spi::MODE_0, // you can also use MODE_3
    }
 );

Connection I2C

Board pin1	Sensor pin
SCL A5	SCL
SDA A4	SDA

Roadmap

• I2C support
• SPI support
• Docs
• Datasheet brief

Footnotes

1. Specified pin numbers for Nano, watch pinout ↩ ↩²