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Power Jack and Connectors

  1. X728 powers the Raspberry Pi via the 40-pin header (Pin 2 & 4)
  2. Don't power the Raspberry Pi via the Pi's type-C USB socket
  3. X728 can be powered via the onboard DC jack or Type-C USB power socket

6-Pin Function Header

Connector for External Power Switch

  1. Please use momentary switch only and don't use latching switch
  2. Connector - Pitch 2.0mm 4pos

Power button (Script for power mgnt installed)

Function LEDs

Fuel gauge - LED Indicator

Operation of Discharging:

Operation of charging:

Pins and GPIO used

18650 battery dimension

18650size.png Do not use 18650 battery with built-in protection circuit

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Anonymous user #4

8 days ago
Score 0++
How could one write a script to trigger the x728off code to run in the event of a Power Loss Detection

Anonymous user #1

one month ago
Score 0++
Which jumpers are which?

Anonymous user #2

one month ago
Score 0++

Pin assignments for the jumpers are printed on the underside of the board at least! :

From the Power jack end : AON (Auto On) PLD (Power loss detection) ASD (Auto shutdown)

to nearest the USB-C Connector

Anonymous user #3

one month ago
Score 0++

No, correction, it reads thus :

From the Power jack end : PLD (Power loss detection)

AON (Auto On) is the middle pair.

ASD (Auto shutdown)

is nearest the USB-C Connector.