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==Read fan speed==
<code>read_fan_speed.py</code> is a sample python file on how to read the speed of the pwm fan. Run the following command to get the speed of the fan:
cd ~x729-script
sudo python3 sample/read_fan_speed.py
This `read_fan_speed.py` python file depends on the third-party python library `Rpi.GPIO`. In the official Raspberry Pi OS and most third-party OS, this library is installed by default. If you run this file and get some errors, try to run the following command to install the Rpi.GPIOy library.
sudo apt-get install -y python3-smbus python3-rpi.gpio
Or you can refer to [[How to Install RPi.GPIO Python Library]]
cd ~x729-script
sudo python3 sample/buzzer.py
==Other==