ubit-BME280
Basic functions to use the BME280 breakout board with the Bosch Sensortec ME280 Temperature, Humidity and Pressure Sensor with the I2C interface on the micro:bit.
see: https://www.bosch-sensortec.com/bst/products/all_products/bme280 for the Sensor datasheet and: https://www.microbit.co.uk/home for the micro:bit.
how to connect the breakout board to the micro:bit:
SCL --> pin19
SDA --> pin20
VDD --> 3V
GND --> 0
Note: sensor calibration parameters stored in registers 0x88-0xA1 and 0xE01-0xE07 are declared due to memory restrictions on the micro:bit. Use get_calibration_data.py to read the needed values
Class currently implements only "forced mode" (meaning that a single measurement is performed, when finished, the sensor returns to sleep mode and the measurement results can be read from the data registers) and the recommended settings for "Weather monitoring" (1x oversampling for temperature, humidity and pressure, filter OFF). This can be easily adjusted by setting the corresponding CTRL_HUM = 0XF2, CTRL_MEAS = 0XF4, and CONFIG = 0xF5 registers.