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git clone https://github.com/geekworm-com/x735-v2.5.git==How to control PWM fan speed==The PWN fan is not rotating when X715 is connected to PI 4, we need to to install the pwm fan control script
At this time, the fan is still not rotating, we need to continue to install the pwm fan control script git clone https://github.com/geekworm-com/x715.git python /home/pi/x715/pwm_fan_control.py
We can manually run the following commands: python /home/pi/x735-v2.5/pwm_fan_control.pyThen the x735 x715 fan will start working.
6. == How to start PWM fan when pi 4 boots==The following comment is from [[X735 V2.5 Software]]
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This guide is only for X715 V1.0 shield based on RASPBIAN.
But we hope that the script can be executed automatically when the Raspberry Pi board boots, we can use crontab system command to achieve it. please refer to the following
sudo crontab -e
Add a line at the end of the file that reads like this:
@reboot python /home/pi/x735-v2.5x715/pwm_fan_control.py
Please note the path of this file.
== How to read the fan RPM?==
please refer to /home/pi/x735-v2.5x715/read_fan_speed.py, and this is only show how to get the fan speed every second, run the following command. sudo python /home/pi/x735-v2.5x715/read_fan_speed.py
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