simple_control.py

#import RPi.GPIO as GPIO
import time
import os
import sys
import thread
import subprocess
#import requests
#import json

# this program reads pico status and put chiller on
# 20170530 by Ethen 

pico_account="xxxxx"
pico_passwd="xxxxx"
pico_device_id="1234"
chiller_relay = 4 #relay1
sparge_relay = 3 #relay2
chiller_step = "Chill"
sparge_step = "Heat to Boil"

#cli="bash getPicoDeviceStatusName.sh \""+pico_account+"\" \""+pico_passwd+"\" "+pico_device_id
data = subprocess.check_output(['bash', 'getPicoDeviceStatusName.sh', pico_account, pico_passwd, pico_device_id])
data = data.strip()

GPIO.setmode(GPIO.BCM)
#GPIO.cleanup()
GPIO.setup(chiller_relay, GPIO.OUT)
GPIO.setup(sparge_relay, GPIO.OUT)

sp = data.split(':');
#print len(sp)
if len(sp)==1:
  print data+" action:reset"
  GPIO.output(chiller_relay, GPIO.LOW)
  GPIO.output(sparge_relay, GPIO.LOW)
  sys.exit(0)
print sp[1].strip()
if sp[1].strip()==chiller_step:
  print data+" action:enable chiller"
  GPIO.output(chiller_relay, GPIO.HIGH)
elif sp[1].strip()==sparge_step:
  print data+" action:enable sparge"
  GPIO.output(sparge_relay, GPIO.HIGH)
else:
  print data+" action:reset"
  GPIO.output(chiller_relay, GPIO.LOW)
  GPIO.output(sparge_relay, GPIO.LOW)