rp-bme280-rust

"rp-bme280" is a simple data acquisition program from an ambient sensor Bosch BME280. This works with Raspberry Pi 3+.

Development environment

• Rust (1.44.1)

Sensor

Refer to the pages below for the specification of the target sensor BME280.

• Humidity Sensor BME280 | Bosch Sensortec
• Datasheet

Features

• Data acquisition: Temperature (in degree Celsius), Humidity (in %), Pressure (in hPa)
• Acquisition data is compensated with the trimming parameters programmed in the devices' NVM during production

Installation

"rp-bme280" uses the I2C interface on Raspberry Pi to communicate the sensor.

Enabling I2C feature

Turn the I2C feature on in your Raspberry Pi. (The code below is for Raspberry Pi OS)

$ sudo raspi-config nonint do_i2c 0

• cf. rc_gui/rc_gui.c at master · raspberrypi-ui/rc_gui

Connecting BME280 to Raspberry Pi

Connect BME280 communication pins to the default I2C port on your Raspberry Pi.

In this module connections should be as the below.

Downloading rp-bme280

Usage

Just call the rpbme280 executable.

$ /path/to/rpbme280

Then you can see the acquired data as the below.

Temperature: 25.96 C
Humidity: 52.52 %
Pressure: 1011.60 hPa

Dependencies

• golemparts/rppal: A Rust library that provides access to the Raspberry Pi's GPIO, I2C, PWM, SPI and UART peripherals.

References

• samplecodes/BME280 at master · SWITCHSCIENCE/samplecodes
• BME280 – SWITCHSCIENCE

License

MIT license