small changes of python script in order to reduce the noise level fur…

…ther

README.md

@@ -61,7 +61,7 @@
  > reboot
 - the fan control software is derived from [here](https://www.internauta37.altervista.org/en/blog/install-melopero-fan-hat-raspberry-pi-4-libreelec). Many thanks to [internauta37](https://www.internauta37.altervista.org/en) !
  - installation procedure for the fan control (derived from [here](https://www.internauta37.altervista.org/en/blog/install-melopero-fan-hat-raspberry-pi-4-libreelec).)
- - major change is that the fan is turning at full speed for 1 second after each change of the fan speed
+ - major change is that the fan is turning at 'turn_on_speed (default: 65%)' speed for 1 second after each change of the fan speed
  - to make the fan working on LibreELEC it is necessary to perform the following steps:
 
  + install the Addon Raspberry Pi Tools in LibreELEC

debug.log

@@ -0,0 +1,38 @@
+example of a debug log during the streaming of a Youtube video
+
+LibreELEC:~ # python3 /storage/.config/fan_controller/fan_controller.py
+initial PWM duty cycle = 100
+temperature = 41.3
+new PWM duty cycle = 30
+temperature = 40.9
+new PWM duty cycle = 30
+temperature = 42.3
+new PWM duty cycle = 30
+temperature = 44.3
+new PWM duty cycle = 30
+temperature = 44.8
+new PWM duty cycle = 30
+temperature = 45.2
+new PWM duty cycle = 30
+temperature = 46.7
+new PWM duty cycle = 30
+temperature = 47.2
+new PWM duty cycle = 30
+temperature = 46.2
+new PWM duty cycle = 30
+temperature = 46.7
+new PWM duty cycle = 30
+temperature = 45.7
+new PWM duty cycle = 30
+temperature = 47.2
+new PWM duty cycle = 30
+temperature = 48.2
+new PWM duty cycle = 30
+temperature = 46.7
+new PWM duty cycle = 30
+temperature = 47.2
+new PWM duty cycle = 30
+temperature = 48.2
+new PWM duty cycle = 30
+temperature = 48.2
+new PWM duty cycle = 30

fan_controller.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# (C) 2021 FUEL4EP (Creative Commons)
+# (C) 2022 FUEL4EP (Creative Commons)
 # license: https://creativecommons.org/licenses/by-nc-sa/4.0/
 import sys
 sys.path.append('/storage/.kodi/addons/virtual.rpi-tools/lib')
@@ -11,8 +11,9 @@
 
 minimum_always_ON=True
 minimum_speed=30
+turn_on_speed=65
 target_temp=52
-sleepTime=10
+sleepTime=20
 debugFlag=False
 
 current_speed=0
@@ -54,8 +55,8 @@ def setDutyCycle(new_duty):
  if (current_speed != new_duty):
  if (new_duty < 50 ):
  if (new_duty > 0 ):
- #set duty cycle to 100% for 1 second after a change of the duty cycle in order to ensure the start of the fan
- myPWM.ChangeDutyCycle(100)
+ #set duty cycle to turn_on_speed % for 1 second after a change of the duty cycle in order to ensure the start of the fan
+ myPWM.ChangeDutyCycle(turn_on_speed)
  time.sleep(1)
  myPWM.ChangeDutyCycle(new_duty)
  current_speed=new_duty