User Guide

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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. Support TRUE AUTO ON function (in the old version,the power management function is disabled if
AUTO ON is enabled)
4. Considering that some customers use X735 together with other DAC shield, we adjusted the GPIO pins
used.
5. Please install shell script to get safe shutdown function. please refer to X735 V2.5 Software.
6. No any size changes.
The X735 is a multifunctional expansion board for all current models of the Raspberry Pi using a 40-pin
header. It provides intelligent and safe power management, safe shutdown and full poweroff through
software, an automatic temperature controlled fan which enables the use of the Raspberry Pi in extreme
conditions including very high temperature environments. The X735 also 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 both momentary button and latching switch for easy power control
 Press the momentary button or external momentary power switch to turn on
 Press the momentary button or external momentary power switch and hold for 1~2seconds to reboot
 Press the momentary button or external momentary power switch and hold for 3~7seconds to
implement safe shutdown
 Press the momentary button or external momentary power switch and hold for more than 8 seconds
to force shutdown
 Supports safe shutdown and full poweroff through software
 On-board switch convenient to select latching or momentary power control switches
 Press the latching power switch once to turn on and again to implement safe shutdown
 On-board LED shows the status of power on, reboot and shutdown
 On-board PH2.0 connectors allows to use external latching switch or momentary button
 Powers the Raspberry Pi via the 40-pin header - no additional cabling required
 Allows power input via DC jack or Micro-USB socket or XH2.54 connector
 Allows power output via XH2.54 socket and or the 40-pin header