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| USB power in socket || Type-C|-| UPS power output || '''5.1Vdc 8AMax. 6A'''
==Connector for External Power Switch==
{| class="wikitable collapsible collapsed"
! Pin No. !! Pin Description
|-
| 1 || Power on/off control connecting to switch
|-
| 2 || Ground
|-
| 3 || Ground
|-
| 4 || LED+ for power on, rebooting and shutdown
|}
# Please use <span style="color:red;">momentary</span> switch only and don't use latching switch
# Connector - Pitch 2.0mm 4pos
<span style="color:red;">PIN33 (GPIO13) is replaced by the PIN37 (GPIO26) to avoid the I2S interface from v1.3 to v2.0.</span>
==Overview==
[[File:X729-IMG-4915-Interface.jpg|800px]]
[[File:X729-IMG-4918-jumper.jpg|800px]]
==Power Jack and Connectors==
{| class="wikitable collapsible collapsed"
| Power input || 5Vdc +/'''Wide voltage DC 6V- 5% 24V''' ,≥3A
|-
| DC Power Plug Size || 5.5*2.1mm
|-
|-
| Power output connector || XH2.54mm 2pin
|}
==Pins and GPIO used==
{| class="wikitable collapsible collapsed"
|-
| 32 || GPIO12 for power management
|-
| 37 || GPIO26 for power management
|-
| 33 || GPIO13 for PWM fan speed control
| 36 || GPIO16 for PWM fan speed reading
|-
| 31 || GPIO6 for AC power loss detection|-| 38 || GPIO26 GPIO20 for buzzer control|} ==Connector for External Power Switch=={| class="wikitable collapsible collapsed"! Pin No. !! Pin Description|-| 1 || Power on/off control connecting to switch|-| 2 || Ground|-| 3 || Ground|-| 4 || LED+ for power managementon, rebooting and shutdown
|}
# Please use <span style="color:red;">momentary</span> switch only and don't use latching switch
# Connector - Pitch 2.0mm 4pos
==PCB dimention==
* X729 Dimensions source file (DXF): [[File:X729-PCB-v1.dxf|X729 PCB Dimensions source file (DXF)]] - You can view it with [https://viewer.autodesk.com/ Autodesk Viewer] online
==18650 battery dimension==
[[File:18650size.png]]
<span style="color:red;">
Do not use 18650 battery with built-in protection circuit</span>
Battery Recommend for X729 board, please refer to: [[File:NCR18650B.pdf]]
Return to [[X729]] or [[X729-Software]]
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