def main(argv):
verbose = False
try:
opts, args = getopt.getopt(argv,'hv')
except getopt.GetoptError:
printHelp()
sys.exit(2)
for opt, arg in opts:
if opt in ('-h'):
printHelp()
sys.exit()
elif opt in ('-v'):
verbose = True
# Setting up PWM
PWM_PIN_CONTROL = 1 # gpio pin 12 = wiringpi no. 1 (BCM 18)
io = wiringpi2.GPIO(wiringpi2.GPIO.WPI_MODE_PINS)
io.pinMode(PWM_PIN_CONTROL,io.OUTPUT)
io.digitalWrite(PWM_PIN_CONTROL, io.LOW)
io.pinMode(PWM_PIN_CONTROL,io.PWM_OUTPUT)
# Setting up PID
fTemperatureSetPoint = 40.0 #C
fPIDSampleTime = 1.0 #seconds
bAggresiveTunning = True
pProcessorTemp = CTempRasp()
myArduPIDCtrl = CArduPID(fTemperatureSetPoint,400.0,1024.0,1)
myArduPIDCtrl.setSampleTime(fPIDSampleTime)
myArduPIDCtrl.setAggressiveTunning()
while True:
currentTemp = pProcessorTemp.getTemp()
myardupid = myArduPIDCtrl.update(currentTemp)
diffTemp = abs(fTemperatureSetPoint - currentTemp)
if (bAggresiveTunning == True) & (diffTemp < 2.0):
bAggresiveTunning = False
myArduPIDCtrl.setConservativeTunning()
elif (bAggresiveTunning == False) & (diffTemp >= 2.0):
bAggresiveTunning = True
myArduPIDCtrl.setAggressiveTunning()
#set pwm value
io.pwmWrite(PWM_PIN_CONTROL, int(myardupid))
if verbose == True:
print currentTemp,int(myardupid)
print "---"
time.sleep(fPIDSampleTime)
#!/usr/bin/python from CTemp import CTempRasp from CPID import CArduPID import time fTemperatureSetPoint = 40.0 #C fPIDSampleTime = 1.0 #seconds bAggresiveTunning = True pProcessorTemp = CTempRasp() myArduPIDCtrl = CArduPID(fTemperatureSetPoint,150.0,255.0,1) myArduPIDCtrl.setSampleTime(fPIDSampleTime) myArduPIDCtrl.setAggressiveTunning() while True: currentTemp = pProcessorTemp.getTemp() myardupid = myArduPIDCtrl.update(currentTemp) diffTemp = abs(fTemperatureSetPoint - currentTemp) if (bAggresiveTunning == True) & (diffTemp < 2.0): bAggresiveTunning = False myArduPIDCtrl.setConservativeTunning() elif (bAggresiveTunning == False) & (diffTemp >= 2.0): bAggresiveTunning = True myArduPIDCtrl.setAggressiveTunning() print currentTemp,myardupid print "---"