raspi_temp/thermo.py at master · dsopkin/raspi_temp · GitHub

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#!/usr/bin/python

import os
import time
import sys
import datetime

os.system('modprobe w1-gpio')
os.system('modprobe w1-therm')

temp_sensor = '/sys/bus/w1/devices/<serial>/w1_slave'
ts = time.time()
st = datetime.datetime.fromtimestamp(ts).strftime('%Y-%m-%d %H:%M:%S')


def temp_raw():

    f = open(temp_sensor, 'r')
    lines = f.readlines()
    f.close()
    return lines


def read_temp():

    lines = temp_raw()
    while lines[0].strip()[-3:] != 'YES':
        time.sleep(0.2)
        lines = temp_raw()

    temp_output = lines[1].find('t=')

    if temp_output != -1:
        temp_string = lines[1].strip()[temp_output + 2:]
        temp_c = float(temp_string) / 1000.0
        temp_f = temp_c * 9.0 / 5.0 + 32.0
        return temp_f

print(st + "," + str(read_temp()))
# Uncomment to print just the temperature

# while True:
#    print(read_temp(0))
#   time.sleep(1)


# Uncomment to print timestamp,temp

# if True:
#    print(st + "," + str(read_temp()))