Geekworm X735 V2.5 User Manual History: No 1 Date 2021-05-08 Description Create document Author Cindy 2 https://geekworm.com Support: support@geekworm.
Overview X735 V2.5 is the latest version of X735, updated from X735 V2.1 which release at March 15th, 2021. There are 4 version of X735: V1.0, V2.0, V2.1, V2.5 (final version): Version 2.5(Updated on Mar. 15th, 2021): Some new features of X735 V2.5: 1. Use the silent PWM cooling fan, and support fan speed is control by script, support read fan speed, and we provide sample python code. 2. You must install shell script to enable the PWM fan work fine since it's a PWM fan, refer to X735 V2.5 Software 3.
PWM Cooling Fan Dedicated PWM cooling fan for Raspberry Pi Air flow up to 6.
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 https://geekworm.com Support: support@geekworm.
About Power X735 support 4 kinds of power supply: DC5525 port: Can provide up to 4A power supply capability. (Recommend) Type C power port: specially designed for Raspberry Pi 4 Model B (Recommend) Micro USB: Compatible with your original micro-usb power adapter XH2.
Hardware WIKI: https://wiki.geekworm.com/X735_V2.5_Hardware https://geekworm.com Support: support@geekworm.
Software WIKI: https://wiki.geekworm.com/X735_V2.5_Software This guide is only for X735 V2.5 shield based on RASPBIAN. How to setup script?? 1. Once you have logged into your Raspberry Pi from the command line, run the following commands 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.
We can manually run the following commands: python /home/pi/x735-v2.5/pwm_fan_control.py Then the x735 fan will start working. 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. 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.
Save and exit (CTRK + O and ENTER to save it). In 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 https://geekworm.com Support: support@geekworm.
FAQ Q1: What is the pinout for the PWR Switch? A: Please refer to here: PH2.0 Conector Specification. Q2: Why the 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. https://geekworm.
