Raspberry Pi X735 Safety Shutdown Power Management & Auto Cooling Board for Raspberry Pi 4 Model B/3B+(plus) /3B / 2B+

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: Use the silent PWM cooling fan, and support fan speed is control by script, support read fan speed, and we provide sample python code. You must install shell script to enable the PWM fan work fine since it's a PWM fan, refer to X735 V2.5 Software Support TRUE AUTO ON function (in the old version,the power management function is disabled if AUTO ON is enabled) Considering that some customers use X735 together with other DAC shield, we adjusted the GPIO pins used. Please install shell script to get safe shutdown function. please refer to X735 V2.5 Software Remove the 2pin power cable from X735 v2.5 No any size changes. Important Note： Safe shutdown script: Document Full power off via software is not supported when using a external latching switch; "L-SW" Jumper on X735 should be