Micropython SHT30: reading temperature and humidity

sht30.py

"""Simple module for reading temperature and humidity
from SHT30 sensor for micropython

it is a simplest version only for inspiration,
where is no checking availability of sensor
and no checking CRC of data
for waiting to measured data is used clock stretching
"""

def read(i2c, address=68):
    """Read temperature and humidity from SHT30 sensor
    
    Arguments:
        i2c: instance of i2c
        address: I2C address
        
    Returns: c, f, h
        c: temperature in degree Celsius (-45 .. 130)
        f: temperature in degree Fahrenheit  (-49 .. 266)
        h: relative humidity in % (0 .. 100)
    """
    i2c.writeto(address, b'\x2c\x06')
    m = i2c.readfrom(address, 6)
    c = int.from_bytes(m[0:2], 'big') * 175 / 65535 - 45
    f = int.from_bytes(m[0:2], 'big') * 315 / 65535 - 49
    h = int.from_bytes(m[3:5], 'big') * 100 / 65535
    return c, f, h

sht30_test.py

import machine
import sht30


scl = machine.Pin(22)
sda = machine.Pin(23)
i2c0 = machine.I2C(0, scl=scl, sda=sda, freq=50000)

print(sht30.read(i2c0, 68))