BMP280传感器模块_Python_代码_相关文件_下载

# micropython-bmp280 - https://www.adafruit.com/product/2651 - https://www.bosch-sensortec.com/products/environmental-sensors/pressure-sensors/pressure-sensors-bmp280-1.html - https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bmp280-ds001.pdf Inspired by https://github.com/vitally/BMP280 https://github.com/micropython-IMU/micropython-bmp180 ## Constructor **BMP280(i2c_bus, addr=0x76, use_case=BMP280_CASE_HANDHELD_DYN)** * *i2c_bus* - the I2C bus to use * *addr* - I2C address of the BMP280 (always the same) * *use_case* - Use case to start the BMP280 with. Set to None to disable measuring on boot. ## Enums Values for different settings are defined in the following constants. Reference to manual section in parenthesis. ### Use cases (See 3.4, 3.8.2) * BMP280_CASE_HANDHELD_LOW * BMP280_CASE_HANDHELD_DYN (*default*) * BMP280_CASE_WEATHER * BMP280_CASE_FLOOR * BMP280_CASE_DROP * BMP280_CASE_INDOOR ### Oversampling setting (See 3.3.1, 3.8.2) * BMP280_OS_ULTRALOW * BMP280_OS_LOW * BMP280_OS_STANDARD * BMP280_OS_HIGH * BMP280_OS_ULTRAHIGH ### Pressure oversampling (See 3.3.1) * BMP280_PRES_OS_SKIP * BMP280_PRES_OS_1 * BMP280_PRES_OS_2 * BMP280_PRES_OS_4 * BMP280_PRES_OS_8 * BMP280_PRES_OS_16 ### Temperature oversampling (See 3.3.2) * BMP280_TEMP_OS_SKIP * BMP280_TEMP_OS_1 * BMP280_TEMP_OS_2 * BMP280_TEMP_OS_4 * BMP280_TEMP_OS_8 * BMP280_TEMP_OS_16 ### IIR filter (See 3.3.3) * BMP280_IIR_FILTER_OFF * BMP280_IIR_FILTER_2 * BMP280_IIR_FILTER_4 * BMP280_IIR_FILTER_8 * BMP280_IIR_FILTER_16 ### Standby settings for Normal measure (See 3.6.3) * BMP280_STANDBY_0_5 * BMP280_STANDBY_62_5 * BMP280_STANDBY_125 * BMP280_STANDBY_250 * BMP280_STANDBY_500 * BMP280_STANDBY_1000 * BMP280_STANDBY_2000 * BMP280_STANDBY_4000 ### Power modes * BMP280_POWER_SLEEP * BMP280_POWER_FORCED * BMP280_POWER_NORMAL ### SPI 3-wire select * BMP280_SPI3W_ON * BMP280_SPI3W_OFF ## Example ```python from machine import I2C from bmp280 import * bus = I2C() bmp = BMP280(bus) bmp.use_case(BMP280_CASE_WEATHER) bmp.oversample(BMP280_OS_HIGH) bmp.temp_os = BMP280_TEMP_OS_8 bmp.press_os = BMP280_PRES_OS_4 bmp.standby = BMP280_STANDBY_250 bmp.iir = BMP280_IIR_FILTER_2 bmp.spi3w = BMP280_SPI3W_ON bmp.power_mode = BMP280_POWER_FORCED # or bmp.force_measure() bmp.power_mode = BMP280_POWER_NORMAL # or bmp.normal_measure() # also bmp.in_normal_mode() bmp.power_mode = BMP280_POWER_SLEEP # or bmp.sleep() print(bmp.temperature) print(bmp.pressure) #True while measuring bmp.is_measuring #True while copying data to registers bmp.is_updating ``` ## TODO * SPI support * ~~Filters~~ * ~~Oversampling settings (half done)~~ * ~~Power modes~~ * ~~Standby setting for Normal mode~~