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==Function Description=====Since X735 V2V3.5 ===Refer 0 is wide voltage input, so we have some advise to [[X735 V2V3.0: Different voltages have different rated currents. Generally speaking, the lower the voltage, the larger the required rated current.5 Hardware]]For example, when the voltage is 12V, the rated current of 2A is enough, if the voltage is 36V, 1A is enough, but if the voltage is 6V, the rated current should be more than 3A. That is to say, the output power of the power adapter should be greater than the normal working power of the Raspberry Pi;
===X735 V2.1 (Sold out)===Please refer Generally speaking, we require the output power of the power adapter to [[X735 V2.1 Hardware]]be above 20W;
* [https://github.com/geekworm-com/x730-script Github]
<span style='color:red;'>12. How to delete X735 script completely?
* A:
(1）sudo nano /etc/rc.local , delete "x730pwr.sh", then save
(2）sudo rm <span class="tb_red">12. How to delete X735 script completely?</etcspan>* A: Run the coomand '''./x730pwruninstall.sh''' if you found this command in the x735-script fold.
(3) sudo rm /usr/local/bin/x730shutdown.sh
"/Home/pi/x735-v2.5" indicates the path where pwn_fan_control.py is located:[[File:X120x setting1.png]]
X735
,[[File:X735 and X820 board.jpg|thumb|right|X735+X820 board]]
==Foreword==
X735 V3.0 V2.5 supports Raspberry Pi 5 hardware also. There are 5 version of X735: V1V3.0, V2.05, V2.1, V2.5 V30, V1.0:
<span style="color:red;">Version 3.0</span>(Updated on Mar. , 2022):
'''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.
* <SPAN style="color:red;">You must install shell script to enable the PWM fan work fine since it's a PWM fan, refer to [[X735 V2.5 Software-script]]</span>
* 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-script]]
* Remove the 2pin power cable from X735 v2.5
* No any size changes.
* [[X735 Hardware]]
* [[X735 Software-script]]
<span style="color:red;">Version 2.1</span>(Updated on Oct. 30th, 2019): Only change jumper 'FAN_HS' to 'AUTO ON' function; because we found 'AUTO ON' function is more useful to user.
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 a 4PIN power switch (momentary switch and latching switch) port, you can connect the additional power switch to safe control the power on/power off;
==Important Note==
* XH2.54 2Pin Cable: This is a flexible power supply
==Hardware Description=={| class="wikitable"! Model !! URL|-| X735 V3.0 || [http://www.suptronics.com/miniPCkits/x735_v3.0-hardware.html X735 V3.0 Hardware]|-| X735 V2.5 || [[X735 V2.5 Hardware]]|-| X735 V2.1 (Sold out) || [[X735 V2.1 Hardware]]|-| X735 V2.0 (Sold out)===|| [[X735 V2.0 Hardware]]|-Please refer to | X735 V1.0(Sold out) || [[X735 V2V1.0 Hardware]]|}
==PCB dimention==* X735 V1v3.0Dimensions source file (Sold outDXF)===Please refer to : [[File:X735-PCB-v3.0.dxf|X735 V1v3.0 HardwareDimensions source file (DXF)]]- You can view it with [https://viewer.autodesk.com/ Autodesk Viewer]online
==Installation GuideUser Manual==
===Installation Video===
* Geekworm Video(X735 with X820): https://youtu.be/I1nnjh9HvGI
{{#ev:youtube|https://youtu.be/I1nnjh9HvGI}}
===X735 V1.0 Installation Guide ManualSoftware Installtion===[[File:X735安装说明You must install the script to enable PWM fan running and safe shutdown function.jpg|X735 installation guide]]
Please choose a different script according to the version number of X735 shield==Document=====for Version 3.0/2.5====Please refer to [[X735 V2.5 Software-script]]
====for Version 2.1 or more low version====
Please refer to '''[http://www.suptronics.com/miniPCkits/x735-hardware.html Hardware]''' and '''[http://www.suptronics.com/miniPCkits/x730-software.html Software]''' and read them and follow the instructions before ask any questions, thank you!
The safe shutdown script is same with X730.
We test this shell script base official Raspbian '2018-11-13-raspbian-stretch.img' version;other operating systems not be tested!
<pre>
x730off
</pre>
===X735 V1.0 Installation Guide Manual=Some Tips==1. https[[File://github.com/geekworm-com/x735-v2X735安装说明.5/issues/6jpg|X735 installation guide]]
==FAQ==
<span styleclass='color:red;'"tb_red">1.How to use the Auto Power On jumper and Latching Switch Jumper on X735 V2.1 version board?</span> Answer:
There two jumpers: Auto Power On jumper and Latching Switch Jumper on X735 board.
* Auto Power On jumper
:Short - Auto power-on when power applied
Open - Power on when power button pressed
* Latching Switch Jumper
:Short - Using external latching switch
:Open - Using on-board power button or external external momentary switch
* 1. When use X735 V2.1 with Geekworm [[X825-C2 Case]], we equipped '''momentary switch''' in X825 metal case, please remove both of the jumper caps.
<span styleclass='color:red;'"tb_red">2. Which GPIOs are used in the X735 V2.1 script?</span>
Answer: The GPIO4, GPIO17 and GPIO18 is used for power management. And the rest GPIO pins are available to use.
<span styleclass='color:red;'"tb_red">3.What if I connect the x820 XH2.54 5v to the IN of the X735, and then connect the power supply to the x820. Will the safe shutdown work?</span>
Answer: This is no suggested, because power supply for X820 cannot be controlled by X735 and safe shutdown won't be implemented as well.
<span styleclass='color:red;'"tb_red">4.Does the x735 power board work with the rock64 board? is the 40 pin connector compatible with the rock64 40 pin connector?</span>
Answer: In fact, we didn't test X735 based with ROCK64, and we didn't consider ROCK64 board when we wrote a safe shutdown shell script, so we think X735 is not compatible with ROCK64. Also the
<span styleclass='color:red;'"tb_red">5. What is the pinout for the PWR Switch?</span>
Answer: Please refer to here: [[PH2.0 Conector Specification]]
<span styleclass='color:red;'"tb_red">6.Does the X725/X750 support to use with X735 together?</span>
Answer: Please refer to [[Connecting the X725 UPS to the X735 Power Supply]]
<span styleclass='color:red;'"tb_red">7.Does the X735 V2.1 support to check the speed of the fan?</span>
Answer: Sorry, no, X735 V2.1 is not support to check the fan speed by software, please refer to new version X735 V2.5.
<span styleclass='color:red;'"tb_red">8. Why my RPi4 will switched off directly after connected to the X735?</span>
1. Please confirm all product connection is correct first. If you are not sure about the connection, please attach some pictures and contact us for help.
* Press and hold for more than 8 seconds, will the blue LED go out?
<span styleclass='color:red;'"tb_red">9.How to remove/unload the X735 script from your Pi?</span>
A: Open the /etc/rc.local file (sudo nano /etc/rc.local or vim /etc/rc.local to open the /etc/rc.local file;), and seach x735, then comment out that line (add # on the begin of that line);
<span styleclass='color:red;'"tb_red">10. Can the x735 work in harmony with the x765 POE? </span>
* A: Yes, but the X735 must be set as "AUTO ON" mode.
<span styleclass='color:red;'"tb_red">11. Does this supply safe shutdown when power is cut? Or just safe shutdown when power is constant and a signal switch is cut</span>
* A: Sorry, no, the X735 does not support safe shutdown when power is cut. Please consider [[X728]] if you need this function.
<span styleclass='color:red;'"tb_red">13. Can I connect DC supply 5V and at the same time connect Powerbank to USBC input of X735 as a some kind of "UPS"?</span>
* A: No. It is not support to do so.
:The POWERBANK output may not have a polarity protection circuit, and there is no path management for this connection.
<span styleclass='color:red;'"tb_red">14. After installing the script, the fan does not turn?</span>
* A: Please run the following command and tell us the result. Or upgrade the system to reinstall the test.
:<pre>sudo python /home/pi/x735-v2.5/pwm_fan_control.py</pre> :"/Home/pi/x735-v2.5" indicates the path where pwn_fan_control.py is located. <span class="tb_red">15. Is there any way to check or verify if X735 is physically connected to the Raspberry Pi?</span>* A: GPIO17=1, X735 connected, GPIO17=0 , X735 discontinued. <span class="tb_red">16. What is the current draw with power off?</span>* A: It is less than 1mA. 15.Why does the following message appear: ''this power supply cannot supply 5 a power to peripherals with be restricted'' when using <span class="tb_red">raspberry pi 5 hardware?</span>* A: The following settings are required， from the command line or terminal window start by running the following command::<pre>sudo rpi-eeprom-config -e</pre> :Change the setting of '''POWER_OFF_ON_HALT''' from '''0''' to '''1''' , :Then add '''PSU_MAX_CURRENT=5000''' at the end of the file that reads like this:
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