X735 V2.5 Software

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For Raspbian / RetroPie / Twister OS v2.0.2

This guide is only for X735 V2.5 shield based on RASPBIAN. (Not tested on Ubuntu, openmediavault, retropie or other third party OS like Manjaro,RoninDojo.)

install

Assuming your system is updated, add these packages:

sudo apt-get install -y python-smbus python
sudo apt-get install -y pigpio python-pigpio python3-pigpio git
git clone https://github.com/geekworm-com/x735-v2.5
cd x735-v2.5
sudo chmod +x *.sh
sudo bash install.sh
echo "alias x735off='sudo x735softsd.sh'" >> ~/.bashrc
sudo reboot

Test safe shutdown

x735off
  • x735off is safe shutdown command, you can run this command to safe shutdown.
  • press button 1-2 seconds to reboot
  • press button 3 seconds to safe shutdown,
  • press 7-8 seconds to force shutdown.

uninstall

sudo ./uninstall.sh

read-fan-speed.py

sudo ./read_fan_speed

After a reboot, we can run ```sudo read_fan_speed.py``` to get an update on the fan's current speed. Nice!

How to make the fan script run automatically after booting?

There are two ways to achieve it; 1. Put the following line at the end of .bashrc file: (Default)

cd ~
nano .bashrc

copy the following line to .bashrc file.

python /home/pi/x735-v2.5/pwm_fan_control.py &

NOTE: Maybe you need to modify the file path if you use other OS.

In this way, this line of command will be executed automatically when the user logs in;

2. Use crontab to add a timed task. For details, please refer to How to add crontab job.

For DietPi

install

sudo apt-get install -y python-smbus python
sudo apt-get install -y pigpio python-pigpio python3-pigpio git
git clone https://github.com/geekworm-com/x735-v2.5
cd x735-v2.5
sudo chmod +x *.sh
sudo bash install-dietpi.sh

echo "alias x735off='sudo /usr/local/bin/x735softsd'" >> ~/.bashrc
sudo reboot

For myNode OS and Umbrel

About myNode, please refer to http://www.mynodebtc.com/

About Umbrel, please refetrto https://getumbrel.com/

Install

login to mynode teminal via Putty or Xsheel tool, the default user name is `admin`, password is `bolt`, then run the following command:

Login to mynode teminal via Putty or Xsheel tool, the default user name is `umbrel`, default password is `moneyprintergobrrr`, then run the following command:

FAQ

Q: What are the credentials to SSH into my Umbrel?

A: ssh umbrel@umbrel.local (or ssh umbrel@<IP address of your Umbrel>). The password is the same as your Umbrel's password. If you haven't set a password yet, the default password is: moneyprintergobrrr.


 sudo apt-get update
 sudo apt-get install -y python-smbus python pigpio python-pigpio python3-pigpio git wiringpi
 sudo apt-get install -y python-rpi.gpio rpi.gpio
 git clone https://github.com/geekworm-com/x735-v2.5
 cd x735-v2.5
 chmod +x *.sh
 sudo bash install-mynode.sh
 echo "alias x735off='sudo /usr/local/bin/x735softsd.sh'" >> ~/.bashrc
 sudo reboot

PWM fan control

The script is installed successfully and the fan starts to run

Test safe shutdown

x735off
  • Please run 'x735off' to shut down or press the on-board button switch to shut down. DON'T run the 'shutdown' linux command to shut down, otherwise the power of x735 will not be shut down.
  • press button switch 1-2 seconds to reboot
  • press button switch 3 seconds to safe shutdown,
  • press 7-8 seconds to force shutdown.

uninstall

./uninstall-mynode.sh

Return to X735

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Anonymous user #40

6 days ago
Score 0++

I am trying to install on the latest version of Raspbian - Bullseye - getting an error on the first line of the install 'sudo apt-get install -y python-smbus python' Reading package lists... Done Building dependency tree... Done Reading state information... Done Note, selecting 'python-is-python2' instead of 'python' Package python-smbus is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source

E: Package 'python-smbus' has no installation candidate


Works OK on the previous version - any advice please?

Harry

4 days ago
Score 0++
Please ignore the message.

Lisa

4 days ago
Score 0++
Hi,You don't need to install 'python-smbus' in the new version, please ignore it. But it's needed to install'python-smbus' in the previous version, so we keep it.

Anonymous user #41

3 days ago
Score 0++
Many thanks, all working OK for me - very pleased with the case.

Anonymous user #39

29 days ago
Score 0++

I get this output when running the fan control script on Raspbian, any help would be appreciated. Can't connect to pigpio at localhost(8888)

Did you start the pigpio daemon? E.g. sudo pigpiod

Did you specify the correct Pi host/port in the environment variables PIGPIO_ADDR/PIGPIO_PORT? E.g. export PIGPIO_ADDR=soft, export PIGPIO_PORT=8888

Did you specify the correct Pi host/port in the pigpio.pi() function? E.g. pigpio.pi('soft', 8888) %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Traceback (most recent call last): File "/home/pi/x735-v2.5/pwm_fan_control.py", line 8, in <module> pwm.set_mode(servo, pigpio.OUTPUT) File "/usr/lib/python2.7/dist-packages/pigpio.py", line 1376, in set_mode return _u2i(_pigpio_command(self.sl, _PI_CMD_MODES, gpio, mode)) File "/usr/lib/python2.7/dist-packages/pigpio.py", line 1025, in _pigpio_command sl.s.send(struct.pack('IIII', cmd, p1, p2, 0))

AttributeError: 'NoneType' object has no attribute 'send'

Lisa

26 days ago
Score 0++
Hi,you don't install the pigpiod liberary.please check again,thanks

Anonymous user #38

one month ago
Score 0++
Could someone indicate how to install the script for the fan in manjaro of ronindojo. Thanks.

Harry

one month ago
Score 0++

Anonymous user #37

one month ago
Score 0++

An other nice (maybe the best?) Solution is to install the PWM fan control as a Service... in this case you are able to restart the Service in case you change some Values for temperature control...

To do this follow this steps:

1st. create a Service file for the x735 ppm service like:

sudo nano /lib/systemd/system/x735.service

into this file copy this:


[Unit] Description=x735 PWM Control Service After=multi-user.target Conflicts=getty@tty1.service

[Service] User=pi Group=pi Type=simple ExecStart=/usr/bin/python /home/pi/x735-v2.5/pwm_fan_control.py StandardInput=tty-force

[Install] WantedBy=multi-user.target

save & close this file:

ctrl+o ctrl+x

reload the systemctrl deamon:

sudo systemctl daemon-reload

Don't forget to remove any entrys in the /home/pi/.bashrc or if you follow my previous post in the boot_script.sh load this script twice or more often will have no effect to the fan but generate more system load...

Take care about your file path to the ppm_fan_control.py file and all the other you use in this case... ;)

after all, reboot your Pi:

sudo reboot

Make sure the fan DONT spin at this moment... If the Fan spin you should check everything twice... Somewhere the script will be loaded at an other place...

If the fan don't spin, it is time to enable the new service:

sudo systemctl enable x735.service

Now you can check if all this stuff will work by using

sudo service x735 start | stop

after reboot the fan should spinning...

If you change some temperature values in the pwm_fan_control.py it will take effect after save the file and restart the x735 service:

sudo service x735 stop sudo service x735 start

that's all...

Good Luck! Habe fun!

Anonymous user #36

one month ago
Score 0++

Hello... I just installed the Scripts on a Raspberry Pi 3 Rasbian. 1st. The fan runs only after login via ssh, so i edit the crontab using following Command:

@reboot python /home/pi/x735-v2.5/pwm_fan_control.py&

so the Fan spins after booting without any user logged in..

The read_fan_speed command don't work... So i try following command:

python read_fan_speed.py

this one works fine..

Now i have one Problem: the Connected HDMI Display keeps blank... Only after a boot after a complete Shutdown enabled the Display..

What is wrong there?

Anonymous user #35

one month ago
Score 0++
Thanks, I was looking for a way to start the fan on a headless installation too.

Lisa

one month ago
Score 0++
Hi, The x735 is only a power management expansion board for Raspberry Pi, and will not have any effect on the display.

Anonymous user #37

one month ago
Score 0++

In the time of my last Post i "played a little" and figured out, that a Crontab isn't the best way to start the x735 fan control...

so ich write a boot_script.sh and locate it in the /home/pi/scripts folder of the pi... this script will be triggered every boot by the /etc/rc.local if you enable it..

try this: sudo nano /etc/rc.local

add a line at the end of the file and insert the boot_script into it including full path.. in my case i add following line:

/home/pi/scripts/boot_script.sh

crtl+o to save crtl+x to close

insert into the boot_script.sh the following line(s):

  1. Start the x735_board Fan Control script

echo "Starting Fan & Temperature Control on x735" python /home/pi/x735-v2.5/pwm_fan_control.py &


that's all... in this file you can add more commands as you need, and its a easy way to do this.. ;) the boot_script need to be executable...

Any questions? feel free to ask... ;)

Anonymous user #35

one month ago
Score 0++

1.When I connect to X735, Jumper 1-2 is open, Jumper 3-4 is closed, momentary and latching switches connected, the command "x735off" does not work. 2."sudo ./read_fan_speed" never worked. Only ~/x735-v2.5 $ python read_fan_speed.py works

Is that correct, or am I doing something wrong?

Lisa

one month ago
Score 0++

please refer X735 Important Note; Full power off via software is not supported when using a external latching switch; "L-SW" Jumper on X735 should be removed when using onboard switch / momentary switch; "Auto On" Jumper on X735 should be removed when using external switch;

Both "L-SW" & "Auto On" Jumper caps should be removed when using momentary switch;

Anonymous user #35

one month ago
Score 0++

Anonymous user #33:

I mean, there is no need to install both external switches, momentary and latching. They basically do the same, shutting down the Pi

Lisa

one month ago
Score 0++
yes, you can only connect an external switch, latching switch or momentary switch

Anonymous user #34

2 months ago
Score 0++

I cannot make the fan to work. I have these files in the x735 folder: README.md install-mynode.sh pwm_fan_control.py uninstall-mynode.sh

install-dietpi.sh install.sh read_fan_speed.py uninstall.sh

Anonymous user #33

2 months ago
Score 0++
Do i get that right: You dont need both buttons? Each of them is doing much the same (Save shutdown)?

Lisa

2 months ago
Score 0++
Hi,Sorry I didn't get you mean. X735 has a button switch, and it can also be connected with an external switch.

Anonymous user #32

2 months ago
Score 0++

Hi,

I'm trying to install the fan script on dietpi, and while it's now working, whenever I try to run "read_fan_speed", I get an error that "RPi.GPIO not found" in the python script.

Any ideas?

Anonymous user #31

2 months ago
Score 0++
I build the box with RP4, X735 V2.5 and X825 V2.0. I install libreelec but it is not possible to install the script. How can I do for the fan? Regards.

Lisa

2 months ago
Score 0++
Hi,sorry,we have not tested libreelec. You can try to remove the red and yellow lines and let the fan work,but does not support pwm

Anonymous user #29

2 months ago
Score 0++

hi there the procedure for install software fail on debian buster

missing pigpio package !!! and even installing pgpio-tools, there are problems when I launch install.sh

The script seems to be incorrect.

Anonymous user #28

2 months ago
Score 0++
Thank you so much Harry! MyNode edition works perfect!! Next order of chasis and boards for second node can go out soon :)

Anonymous user #28

2 months ago
Score 0++
Discovered MyNode editon. Will put it in and report back. Thank you so much

Anonymous user #28

2 months ago
Score 0++
Thanks Harry. I tried the X-C1 Software. Completely crashed my Raspi. Does not boot up anymore, red leds, ethernet dead too.

Anonymous user #27

2 months ago
Score 0++

@Harry,

trying X-C1 Software or above X735 again? What would you recommend? Thank you so much

Anonymous user #27

2 months ago
Score 0++

@Harry,

Yes, it is MyNode Linux OS. When I install the software the fan starts spining fine. Read fan speed comes up with errors. x735off is not working and comes up with errors.

When I now restart the Pi4 the fan stops again.

Adding a chron job comes up with errors.

Anonymous user #26

2 months ago
Score 0++
All not working for my Raspi Pi4

Anonymous user #26

2 months ago
Score 0++

admin@myNode:~ $ %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Can't connect to pigpio at localhost(8888)

Did you start the pigpio daemon? E.g. sudo pigpiod

Did you specify the correct Pi host/port in the environment variables PIGPIO_ADDR/PIGPIO_PORT? E.g. export PIGPIO_ADDR=soft, export PIGPIO_PORT=8888

Did you specify the correct Pi host/port in the pigpio.pi() function? E.g. pigpio.pi('soft', 8888) %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Traceback (most recent call last): File "/home/pi/x735-v2.5/pwm_fan_control.py", line 8, in <module> pwm.set_mode(servo, pigpio.OUTPUT) File "/usr/lib/python2.7/dist-packages/pigpio.py", line 1376, in set_mode return _u2i(_pigpio_command(self.sl, _PI_CMD_MODES, gpio, mode)) File "/usr/lib/python2.7/dist-packages/pigpio.py", line 1025, in _pigpio_command sl.s.send(struct.pack('IIII', cmd, p1, p2, 0)) AttributeError: 'NoneType' object has no attribute 'send' ^C

[1]+ Exit 1 python /home/pi/x735-v2.5/pwm_fan_control.py

Harry

2 months ago
Score 0++

Do you use myNode OS? We don't test it on myNode, but you can refer to X-C1 Software, BUT the used GPIO of x-c1 is dirrent with X735.

We will update the script base myNode OS in 2 days.

Harry

2 months ago
Score 0++
As long as it is a PWM fan, it needs script support, or you can consider using a 4010 2P ordinary fan

Harry

2 months ago
Score 0++

update script for myNode. Please check the above guide.

A little change.

Anonymous user #25

3 months ago
Score 0++

Hi Team Geekworm,

Im building a car dashboard solution, will this device be performing a safe shutdown once the power is cut?

Lisa

3 months ago
Score 0++
Hi,x735 does not support; you can refer to the 「Power loss detection」 function of x728ups or T208ups. But please note that X728 is for Raspberry Pi and T208 is for Jetson Nano.

Anonymous user #22

3 months ago
Score 0++
Hi. In the section "How to make the fan script run automatically after booting?", surely this is about running the fan after login, not boot...in fact it later states "[...]command will be executed automatically when the user logs in". So what happens if a different user logs in? It suggests this script has to be installed for every user. Wouldn't it be better to have the fan run when the Pi boots *before* anyone logs in? Surely we want the fan to run if required even if no one is logged in? Thanks.

Lisa

3 months ago
Score 0++
Hi,Because the v2.5 version is a PWM fan, the script must be installed. If you don’t need this function, you can remove the yellow wire and let the fan run directly.

Anonymous user #30

2 months ago
Score 0++

Two ways to do this: - Add the following two lines to end (before the exit) of /etc/rc.local

  1. start fan control

python /home/pi/x735-v2.5/pwm_fan_control.py &

- Install it as a systemd service Copy the following text in a file with the name x735-fan.service

==============================

[Unit] Description=x735 Fan control

[Service] User=root WorkingDirectory=/ ExecStart=/home/pi/x735-v2.5/pwm_fan_control.py Restart=always

[Install] WantedBy=multi-user.target

====================================

Copy the file to the directory /usr/lib/systemd/system/ With the command systemctl start x735-fan the service is started. You also have to do the following command that the service is started on a system boot: systemctl enable x735-fan systemd also takes care that the service is restarted if it dies.

This also has the advantage, that if you log in multiple times the script is not always started.

Anonymous user #21

3 months ago
Score 0++
Fan not turning on … using a Raspberry Pi 4B running DietPi. Not sure where to place the jumper. No case attached.

Lisa

3 months ago
Score 0++
Hello,We have updated it, please refer to the above. Jumper function please refer to X735 V2.5 Hardware

Harry

3 months ago
Score 0++

Anonymous user #20

4 months ago
Score 0++

2nd board works flawless - first one didn't start up the Pi with jumpers on board and died in a little cloud of smoke after a few hours. 2nd one first tested without Pi as described works great and stable. Added a little alias at the end of bashrc :

sudo nano ~/.bashrc alias fan='sudo python /home/pi/x735-v2.5/read_fan_speed.py'

reboot

and now a simple "fan" displays the fan speed:

pi@RaspberryPi:~ $ fan 0 RPM 1781 RPM

1782 RPM

Anonymous user #18

4 months ago
Score 0++

I have a problem with my X735. Every time I run the shutdown command and turn off the power, I have to run the command lines below again to get my X735 working again:

sudo python /home/admin/x735-v2.5/read_fan_speed.py& sudo python /home/admin/x735-v2.5/pwm_fan_control.py&

The command line entered into bash does not work.

Anonymous user #19

4 months ago
Score 0++
what error message ??

Harry

4 months ago
Score 0++
run the 'x735off' to safe shutdown.

Anonymous user #18

4 months ago
Score 0++

When I execute the command line below occurr error:

sudo python /home/admin/x735-v2.5/read_fan_speed.py&

admin@raspberrypi:~ $ File "/home/admin/x735-v2.5/read_fan_speed.py", line 33 print "%.f RPM" % rpm ^ SyntaxError: Missing parentheses in call to 'print'. Did you mean print("%.f RPM" % rpm)?

[1]+ Exit 1 sudo python /home/admin/x735-v2.5/read_fan_speed.py


I solved the problem. I changed command print to :

print("%.f RPM" % rpm)

Harry

4 months ago
Score 0++
Yes, it's python version question.

Anonymous user #17

4 months ago
Score 0++
I'm using x735+x825 AND HiFiBerry DAC2 Pro on top. After v2.5 software installation DAC2 started to play songs at 0.10x of its original speed, I mean sound was really slow. I uninstalled v2.5 software and fixed the problem, but fan stopped working also.

Lisa

4 months ago
Score 0++
Hello,friend:We checked your email, please email us your order number and what OS you use, thanks!

Anonymous user #23

3 months ago
Score 0++
Hi, did you ever get a solution to this? I have the same problem on RPi 4, Raspberry Pi OS, HiFiBerry DAC+ DSP.

Anonymous user #24

3 months ago
Score 0++

Hi, please check X735 V2.5 Hardware.

It should be that the GPIO of X735 conflicts with the GPIO of HIFIBERRY DAC. Please contact HIFIBERRY DAC to find out the GPIO occupancy of this product.

Anonymous user #16

4 months ago
Score 0++
im using the X735 together with the X825 on a PI (8GB) - since and psu 5V 10A - everthing was fine booting from SD CARD - but switching to boot from HDD there is low voltage warning ... it s the same psu with 5V 10A. psu is connected via DC 5525 jack on the X735 - any ideas? should i use the DV 5525 Jack on the X825?

Anonymous user #16

4 months ago
Score 0++
and there is no possibility to power the X825 via 2PIN cable from X735 because that was for the older version

Lisa

4 months ago
Score 0++
Hi,There is no problem connecting the power supply via x735.please measure the voltage of PIN4 (5V) and PIN6 (GND) of Pi 40-PIN header.

Lisa

4 months ago
Score 0++

Hi,add 4 test pins to achieve powered between X825 V2.0 and Pi4 without additional cable.

So no need to 2pin cable, x825 is powered by Pi4

Anonymous user #16

4 months ago
Score 0++
sudo python2 read_fan_speed.py starts the script ...

Anonymous user #15

4 months ago
Score 0++

I use Manjaro and cannot get the X735 V2.5 fan working. All previous Geekworm kits that I have purchased, the fans worked immediately when plugged in. It seems that the v2.5 will not work without a script. The problem I am having is that I am unable to find any manjaro scripts to get the fan working. Can somebody please help, my temperatures were hitting the mid 70s so I do not want to use the device for longer periods of time incase my pi4 overheats.

Please help.

Lisa

4 months ago
Score 0++
Hello,This guide is only for X735 V2.5 shield based on RASPBIAN. (Not tested on Ubuntu, openmediavault, retropie or other third party OS like Manjaro.) please try to remove the ‘yellow and blue wire’of PWM fan to let it run immediately if the fan does not work in third-party OS. Or replace with an ordinary fan. Best regards

Anonymous user #14

4 months ago
Score 0++

Hi,

Your instructions worked flawlessly. I would like to make mention however, and if anyone is like myself and unaware, in the portion of the instructions regarding the "read-fan-speed.py" the user needs to type first python read_fan_speed.py before it will execute. After doing this I was able to get readings:

python read_fan_speed.py 0 RPM 1540 RPM 1540 RPM 1549 RPM 1547 RPM 1541 RPM 1538 RPM 1604 RPM 1554 RPM 1554 RPM 1550 RPM 1548 RPM

best regards

Lisa

4 months ago
Score 0++
Hi,Yes, we remarked: [after a reboot, we can run ```sudo read_fan_speed.py``` to get an update on the fan's current speed. Nice!].Thanks for your feedback. best regards

Anonymous user #13

5 months ago
Score 0++
alles uitgevoerd, maar werkt niet

Lisa

4 months ago
Score 0++
Hi,Sorry I didn't understand your question. Is the fan not working or other functions of X735 not working? could you please tell us more information, we can understand the problem better. Or email us, you can get help faster.Thanks.

Harry

5 months ago
Score 0++

Sorry, due to the merging of the wrong submission code, x735off cannot work. Please run uninstall.sh, and then reinstall install.sh

This bug is fixed on 1th July 2021.

Harry

Anonymous user #11

5 months ago
Score 0++
Thank you - works a treat

Anonymous user #10

5 months ago
Score 0++
Hello, I followed all the steps but there is nothing happening at "5. Test safe shutdown x735off". I get the echo "X735 Shutting down..." but nothing happens. Tested on clean install.

Lisa

5 months ago
Score 0++
Hello,Depending on the environment, the script installation process may cause some problems. Could you please explain your problem in more detail? send some pictures of script installation, etc. Please email us and note your order NO. maybe get answers and help faster.

Anonymous user #12

5 months ago
Score 0++

I'm experiencing the same issue. It seems there is a problem with x735 board since I can only force shutdown it by holding momentary power button for >8s. BTW, `x735off 10` command also has the same effect.

I can neither reboot nor soft shutdown board via the hardware button or x735off script. Does anyone have an idea how to debug it?

Lisa

5 months ago
Score 0++
Hi,Could you please tell us which version you are using? Is it x735 V2.5? Please contact us by email so that you will get help more quickly.[support@geekworm.com] and tell us your order NO. Thanks

Harry

5 months ago
Score 0++
Sorry, due to the merging of the wrong submission code, x735off cannot work. Please run uninstall.sh, and then reinstall x735-v2.5.sh

Anonymous user #9

5 months ago
Score 0++

Hello , everything PI 4/SSD SATA/Power MGMT FAN appears to be installed correctly, but, when I power up, (I have correct power cable) all of the lights go on and shut down after about three seconds. What have I missed?? Thanks,

Donald

Lisa

5 months ago
Score 0++
Hi,Is it used with other expansion boards? What power supply is used? could you please tell us more information, cause we can't judge its problem now.If it is convenient for you, I think e-mail can communicate better. and please tell your order number,Thanks!

Anonymous user #7

6 months ago
Score 0++
it's doesn't work

Lisa

5 months ago
Score 0++
Hello friend, Is the X735 board not working? Or the fan not working? If any problems, please email to us. We will provide solutions.Regards

Anonymous user #6

6 months ago
Score 0++
I have a question, when I want to turn it off do I use the off button physically or do I use the start menu? Or use the command x735off?

Lisa

5 months ago
Score 0++
Hi friend,The X735 supports software safe shutdown, you can use it to shut down. Regards

Anonymous user #5

6 months ago
Score 0++
Which GPIOs are used in the X735 V2.5 script?

Lisa

5 months ago
Score 0++
Hello friend,please refer[X735_V2.5_Hardware] https://wiki...2.5_Hardware

Anonymous user #4

6 months ago
Score 0++
can you make this work for python3?

Anonymous user #3

6 months ago
Score 0++
Great job....thanks :)

Anonymous user #2

6 months ago
Score 0++

Good day,

I'm running an umbrel node on my pi with an SSD attatched. Are there instructions to get the fan part working. Since these instructions are written for Raspbian? ( was was succesfull until step 5)

Anonymous user #1

7 months ago
Score 0++

Please note - in the command line that you entered to turn the fan on initially there is no 3 after python. python /home/pi/x735-v2.5/pwm_fan_control.py

This presents an issue if people are following the next step where you advise people to type: @reboot python3 /home/pi/x735-v2.5/pwm_fan_control.py

these do not match and because of that the fan will not turn on (although the image of your terminal is correct)

Anonymous user #8

5 months ago
Score 0++
Hello,Does the fan not work? According to our script test, the fan can work normally. If any usage problems, please email us. We will provide you with a solution. regrards;Geekworm