#通过I2C连接bmp388和esp32
#download bmp388.py and downloadAndRun this demo
import bmp388
import time
from machine import Pin, I2C
#create I2C object
i2c = I2C(scl=Pin(22), sda=Pin(21), freq=100000)
#create I2C通信的bmp388 object
bmp388 = bmp388.DFRobot_BMP388_I2C(i2c)
#read temperature and print it
while 1:
temp = bmp388.readTemperature()
print("Temperature : %s" % temp)
time.sleep(0.5)
rateOfTurn = (currentHeading - previousHeading) / LP
# print ('Raw Rateof Turn: %4.0f' % rateOfTurn)
##################### BMP388 Code ######################################
# You can use an accurate altitude to calibrate sea level air pressure.
# And then use this calibrated sea level pressure as a reference to obtain the calibrated altitude.
# In this case,525.0m is chendu accurate altitude.
seaLevel = bmp388.readSeaLevel(218.8)
# print("seaLevel : %s Pa" %seaLevel)
# If there is no need to calibrate altitude, calibrated_altitude = False
calibrated_altitude = True
# Read temperature and print it
temp = (bmp388.readTemperature() + 273.15) # Deg C Converted to Kelvin (K)
# print("Temperature : %s C" %temp)
pres = bmp388.readPressure()
# print("Pressure : %s Pa" %pres)
if (calibrated_altitude):
# Read the calibrated altitude
altitude = bmp388.readCalibratedAltitude(seaLevel)
# print("calibrate Altitude : %s m" %altitude)
else:
# Read the altitude
altitude = bmp388.readAltitude()
# print("Altitude : %s m" %altitude)
############################ END ##################################
if config["Heading"]: # Change to 'false' to stop sending the heading
skDataTx = '{"updates": [{ "values": [{ "path": "navigation.headingCompass", "value" :%01.3f' % (