Fan Speed Sample

This sample demonstrates setting fan speed according to CPU temperature.

To run the sample:

  1. 2.
    Copy the sample code to a folder on the Raspberry Pi.
  2. 3.
    Open terminal, and then go to the folder you copied the sample.
  3. 4.
    Run the sample with the following command:

Sample Code
#!/usr/bin/env python3
#This sample demonstrates setting fan speed according to CPU temperature.
#Install RC Driver HAT library with "pip3 install turta-rcdriverhat"
from time import sleep
from turta_rcdriverhat import Turta_IMU
from turta_rcdriverhat import Turta_RCDriver
imu = Turta_IMU.IMU()
rc = Turta_RCDriver.RCDriver()
while True:
#Read IMU temperature
imu_temp_c = imu.read_temp()
imu_temp_f = imu.read_temp(True)
#Read CPU temperature
cpu_temp_c = rc.read_cpu_temp()
cpu_temp_f = rc.read_cpu_temp(True)
#Set fan speed
#0 is fan off, 100 is maximum speed
fan_speed = int(8 * cpu_temp_c) - 300
#Print the readings
print("IMU Temp..: " + str(imu_temp_c) + "C" + \
" / " + str(imu_temp_f) + "F")
print("CPU Temp..: " + str(cpu_temp_c) + "C" + \
" / " + str(cpu_temp_f) + "F")
print("Fan speed.: " + str(fan_speed) + "%")
#Exit on CTRL+C
except KeyboardInterrupt:


When you run the sample, it prints current board and CPU temperatures, and then sets the CPU fan speed accordingly. The example output should be like this:
IMU Temp..: 26.6C / 79.9F
CPU Temp..: 41.1C / 105.9F
Fan speed.: 36%
To stop the Python script, just press CTRL + C.