57 lines
2.7 KiB
Markdown
57 lines
2.7 KiB
Markdown
I do not get anything for writing this, i just got myself that type of power board. Feel free to look around, perhaps there are even better ones fitting your project.
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# X735 Expansion Board
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The X735 is a expansion board for all models (1-4) of the Raspberry Pi using a 40-pin header. It provides power management, safe shutdown, full poweroff through software and an automatic temperature controlled fan. The X735 also reserves the 40-pin header that can be stacked with other Raspberry Pi accessory boards.
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At the same time, the X735 reserve two kind of 4PIN power switch (momentary and latching) port, you can connect the additional power switch to safe control the power on/power off;
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## Important
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- Full power off via software is not supported when using a external latching switch
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- "L-SW" Jumper on X735 should be removed when using onboard switch / momentary switch
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- "Auto On" Jumper on X735 should be removed when using external switch
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- Both "L-SW" & "Auto On" Jumper caps should be removed when using momentary switch
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- Do not power the Raspberry Pi via the Raspberry Pi's Micro-USB socket
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## Features
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Momentary button
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- Press the momentary button or external momentary power switch to turn on
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- Press the momentary button or external momentary power switch and hold for 1~2seconds to reboot
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- Press the momentary button or external momentary power switch and hold for 3~7seconds to implement safe shutdown
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- Press the momentary button or external momentary power switch and hold for more than 8 seconds to force shutdown
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- Supports safe shutdown and full poweroff through software
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Auto cooling function
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- Board temperature ≤34C - Fan running at low speed
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- Board temperature ≥34C - Fan running at medium speed
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- Board temperature ≥45C - Fan running at full speed
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- On-board LEDs show the status of fan running low and high
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Supports four kinds of power supply:
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- **DC5525**: Can provide up to 4A power supply capability.
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- **Type C**: specially designed for Raspberry Pi 4 Model B
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- **Micro USB**: Compatible with your original mirco usb power adapter
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- **XH2.54 2Pin**: This is a flexible power supply
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# Safe shutdown script
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Tested on Raspbian Stretch 2018
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```bash
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# Download run script
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wget https://raw.githubusercontent.com/geekworm-com/x730-script/master/x730.sh
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# Setting file attributes
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sudo chmod +x x730.sh
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# Install the script
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sudo bash x730.sh
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# Setting up the command to turn off X730 from software
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printf "%s\\n" "alias x730off='sudo x730shutdown.sh'" >> ~/.bashrc
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# Reboot the Raspberry Pi
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sudo reboot
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# Powering off the Raspberry Pi from software
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x730off
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```
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# Source
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all information (and maybe updates) can be found at [Geekworm](https://wiki.geekworm.com/X735) |