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Pi/i2c/ds1621_lcd.py

23 lines
543 B
Python
Executable File

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import smbus
import time
bus = smbus.SMBus(1)
address = 0x49
def getTemp():
bus.read_byte_data(address, 0xEE)
tempFull = bus.read_byte_data(address, 0xAA)
counter = bus.read_word_data(address, 0xA8)
slope = bus.read_word_data(address, 0xA9)
temp = tempFull - 0.25 + float(slope - counter) / slope
bus.read_byte_data(address, 0x22)
return temp
while True:
for c in '%9.1f' % round(getTemp(), 1) + ' C':
bus.write_byte(0x23, ord(c))
time.sleep(1)