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PWM Cooling Fan

Dedicated PWM cooling fan for Raspberry Pi

Air flow up to 6.01CFM and maximum speed of 5000 RPM

Smooth PWM adjustment provides a quiet experience

Real-Time fan speed reading

Programmable temperature and fan speed

Others

Reserved 40-pin stackable Header for Add-On Boards

Works with all current models of the Raspberry Pi using a 40 pin header

Fully compatible with our products X820, X850, X860, X870, X822, X852 to provide intelligent and safe

power management

Four kinds of power source:(DC5525, Micro USB, Type C, XH2.54 2-Pin cable)

Interface Schematic

Summary of Contents for X735

Page 1: ...https geekworm com Support support geekworm com 1 Geekworm X735 V2 5 User Manual History No Date Description Author 1 2021 05 08 Create document Cindy 2 ...

Page 2: ...so reserves the 40 pin header that can be stacked with other Raspberry Pi accessory boards for enhanced applications At the same time x735 reserve two kind of 4PIN power switch momentary switch and latching switch port you can connect the additional power switch to safe control the power on power off WiKi https wiki geekworm com X735 Features Intelligent and safe power management Equipped with bot...

Page 3: ...rience Real Time fan speed reading Programmable temperature and fan speed Others Reserved 40 pin stackable Header for Add On Boards Works with all current models of the Raspberry Pi using a 40 pin header Fully compatible with our products X820 X850 X860 X870 X822 X852 to provide intelligent and safe power management Four kinds of power source DC5525 Micro USB Type C XH2 54 2 Pin cable Interface Sc...

Page 4: ...https geekworm com Support support geekworm com 4 X735 V2 5 Packing List 1 x X735 v2 5 Board 2 x Jumper link Pitch 2 54mm 8 x Screw M2 5 6mm 4 x Spacer F M M2 5 12 6mm 4 x Spacer F F M2 5 12mm ...

Page 5: ...end Type C power port specially designed for Raspberry Pi 4 Model B Recommend Micro USB Compatible with your original micro usb power adapter XH2 54 2Pin Cable This is a flexible power supply Compatible With NAS Shield X825 X820 X850 X857 X862 X873 X872 X835 X832 X852 X822 X860 X870 NAS Case X825 C8 X825 C7 X825 C6 X857 C3 X857 C1 X829 C1 X835 C1 X820 V3 0 Case ...

Page 6: ...https geekworm com Support support geekworm com 6 Hardware WIKI https wiki geekworm com X735_V2 5_Hardware ...

Page 7: ... sudo apt get update sudo apt get install python smbus sudo apt get install pigpio python pigpio python3 pigpio 2 Download script and some sample code git clone https github com geekworm com x735 v2 5 git 3 Setup script cd x735 v2 5 sudo chmod x x735 v25 sh sudo bash x735 v25 sh printf s n alias x735off sudo x735softsd sh bashrc 4 Reboot sudo reboot 5 Test safe shutdown x735off At this time the fa...

Page 8: ...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 6 How to start PWM fan when pi 4 boots sudo crontab e Choose 1 then press Enter Add a line at the end of the file that reads like this reboot python3 home pi x735 v2 5 pwm_fan_control py Please note the path of this file ...

Page 9: ... nano editor you do that by hitting CTRL X answering Y and hitting Enter when prompted How to read the fan RPM Please refer to home pi x735 v2 5 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 5 read_fan_speed py ...

Page 10: ...he X735 v2 5 cooling fan is not rotate A You must install shell script to enable the PWM fan work fine since it s a PWM fan refer to X735 V2 5 Software Q3 How to detect that the X735 v2 5 hardware is working fine A DON T insert the X735 V2 5 into the Pi 4 board only power the X735 V2 5 alone then press the on board switch fan rotation means hardware is OK ...

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