A MicroPython driver for the Bosch BME280 temperature, pressure, and humidity sensor, also compatible with BMP280.
BME280 is a MicroPython driver for the Bosch BME280 environmental sensor, which measures temperature, pressure, and humidity. It provides an interface to read and compensate raw sensor data, enabling integration into embedded projects on MicroPython-compatible boards. The driver also supports the BMP280 sensor for temperature and pressure measurements.
Embedded developers and hobbyists working with MicroPython boards (like Raspberry Pi Pico) who need to interface with BME280 or BMP280 sensors for environmental monitoring applications.
Developers choose this driver for its lightweight, board-specific implementation, dual arithmetic modes for flexibility, and built-in utilities like altitude and dew point calculations, simplifying sensor integration in resource-constrained environments.
Micropython driver for the BME280 sensor
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Offers separate integer (bme280_int.py) and float (bme280_float.py) versions for raw data compensation, allowing optimization for MicroPython boards with or without floating-point support, as detailed in the README.
Works with BMP280 sensors for temperature and pressure measurements due to the shared interface, providing flexibility for projects that don't require humidity, as noted in the description.
Includes properties for altitude and dew point calculations, simplifying common environmental data processing without additional coding, demonstrated by the altitude and dew_point properties.
Provides a values property for human-readable strings and read_compensated_data() for precise tuples, making it easy to integrate and debug sensor readings, as shown in the example.
The driver only supports I2C communication, despite the BME280 sensor's SPI capability, restricting its use in projects that require SPI for noise immunity or higher speed.
Requires developers to manually configure I2C pins and ensure pull-up resistors are in place, as highlighted in the example, which can be error-prone and lacks built-in error handling.
The README provides a basic example specific to RP2040 boards, with limited guidance for other MicroPython platforms or troubleshooting common issues like I2C address conflicts.