1  """
 2  Example showing how the BMP280 library can be used to set the various
 3  parameters supported by the sensor.
 4  Refer to the BMP280 datasheet to understand what these parameters do
 5  """
 6  import time
 7  
 8  import board
 9  import busio
10  import adafruit_bmp280
11  
12  # Create library object using our Bus I2C port
13  i2c = busio.I2C(board.SCL, board.SDA)
14  bmp280 = adafruit_bmp280.Adafruit_BMP280_I2C(i2c)
15  
16  # OR create library object using our Bus SPI port
17  # spi = busio.SPI(board.SCK, board.MOSI, board.MISO)
18  # bmp_cs = digitalio.DigitalInOut(board.D10)
19  # bmp280 = adafruit_bmp280.Adafruit_BMP280_SPI(spi, bmp_cs)
20  
21  # change this to match the location's pressure (hPa) at sea level
22  bmp280.sea_level_pressure = 1013.25
23  bmp280.mode = adafruit_bmp280.MODE_NORMAL
24  bmp280.standby_period = adafruit_bmp280.STANDBY_TC_500
25  bmp280.iir_filter = adafruit_bmp280.IIR_FILTER_X16
26  bmp280.overscan_pressure = adafruit_bmp280.OVERSCAN_X16
27  bmp280.overscan_temperature = adafruit_bmp280.OVERSCAN_X2
28  # The sensor will need a moment to gather inital readings
29  time.sleep(1)
30  
31  while True:
32      print("\nTemperature: %0.1f C" % bmp280.temperature)
33      print("Pressure: %0.1f hPa" % bmp280.pressure)
34      print("Altitude = %0.2f meters" % bmp280.altitude)
35      time.sleep(2)