# Distributed with a free-will license.

# Use it any way you want, profit or free, provided it fits in the licenses of its associated works.

# SHT30

# This code is designed to work with the SHT30_I2CS I2C Mini Module available from ControlEverything.com.

# https://www.controleverything.com/content/Humidity?sku=SHT30_I2CS#tabs-0-product_tabset-2

import smbus

import time

# Get I2C bus

bus = smbus.SMBus(1)

# SHT30 address, 0x44(68)

# Send measurement command, 0x2C(44)

# 0x06(06) High repeatability measurement

bus.write_i2c_block_data(0x44, 0x2C, [0x06])

time.sleep(0.5)

# SHT30 address, 0x44(68)

# Read data back from 0x00(00), 6 bytes

# cTemp MSB, cTemp LSB, cTemp CRC, Humididty MSB, Humidity LSB, Humidity CRC

data = bus.read_i2c_block_data(0x44, 0x00, 6)

# Convert the data

cTemp = ((((data[0] * 256.0) + data[1]) * 175) / 65535.0) - 45

fTemp = cTemp * 1.8 + 32

humidity = 100 * (data[3] * 256 + data[4]) / 65535.0

# Output data to screen

print "Relative Humidity : %.2f %%RH" %humidity

print "Temperature in Celsius : %.2f C" %cTemp

print "Temperature in Fahrenheit : %.2f F" %fTemp