kopia lustrzana https://github.com/cyoung/stratux
35 wiersze
719 B
Python
35 wiersze
719 B
Python
#!/usr/bin/python
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# @Author Ryan Dewsbury (helno)
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#
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# This script throttles a fan based on CPU temperature.
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#
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# It expects a fan that's externally powered, and uses GPIO pin 11 for control.
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import RPi.GPIO as GPIO
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import time
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import os
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# Return CPU temperature as float
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def getCPUtemp():
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cTemp = os.popen('vcgencmd measure_temp').readline()
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return float(cTemp.replace("temp=","").replace("'C\n",""))
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GPIO.setmode(GPIO.BOARD)
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GPIO.setup(11,GPIO.OUT)
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GPIO.setwarnings(False)
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p=GPIO.PWM(11,1000)
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PWM = 50
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while True:
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CPU_temp = getCPUtemp()
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if CPU_temp > 40.5:
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PWM = min(max(PWM + 1, 0), 100)
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p.start(PWM)
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elif CPU_temp < 39.5:
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PWM = min(max(PWM - 1, 0), 100)
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p.start(PWM)
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time.sleep(5)
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GPIO.cleanup()
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