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Q1<div class="toccolours mw-collapsible mw-collapsed"><div style="font-weight:bold;line-height:1.0;">Q: Can X829 extend X728-A2 (2 cells) / X708-A1(8 cells) battery holder?</div><div class="mw-collapsible-content">A: YES. You can connect X708-A1 / X728-A2 battery holder via [BAT: XH2.54 Port to External Battery] of X729 board. But please pay attention to the correct wiring method, if it is reversed, it will burn the X729. <span style="color:red;font-weight:bold"/div>The polarity of the 2pin red and black wire of X708-A1/X728-A2 is opposite to that of X729 BAT XH2.54 port.</spandiv> Q2: Does the X729 support SSD1327 OLED Display or LCD 12864?
X729
,[[File:X729-IMG-4918-jumper.jpg|thumb|right|X729 V1.3 Jumper Cap Function]]
[[File:X729-IMG-4971.jpg|thumb|right|X729 V1.3 + OLED + External Momentary Switch]]
[[File:X729-Oled.jpg|thumb|right|X729]]
This X729 is an ultra-compact advanced uninterruptible power supply expansion board for all current models of the Raspberry Pi using a 40 pin header.
It provides Max. 5.1V 6000mA Power Backup for even the most demanding Raspberry Pi set ups, intelligent and safe power management, safe shutdown, auto power-on, battery reverse polarity protection circuit, AC Power Loss Detectionpower loss detection, battery capacity reading, low battery automatic shutdown, real- time clock(RTC), OLED display, Buzzeralarm, PWM Fan and Wide Voltage 6-24V Input.
The X729 reserves the 40-pin header that can be stacked with other Raspberry Pi accessory boards for enhanced applications. The X729 can also be used with the [[X825]] (2.5" HDD/SSD Shield) and [[X857]] / [[X862]] (MSATA/M.2 NGFF SSD shield) for safe data backup.
Recommend to use [[PSU60 | Geekworm DC5521 12V/5A Power adapter US/EU plug]]
<span class="tb_red ">Warning about power supply:</span>
# Don't use that adjustable voltage power supply.
# Don't use the same power supply used on LED strips.
The above two are absolute garbage power supply, can not be used!!!
==Match Metal Case==
==User Manual==
* [[X729-hardware]]: Provides some hardware parameter information* [[X729-Software]]: This script is required to install to enable safe shutdown function.
==PCB dimention==
X729 Dimensions source file (DXF): [[File:X729-PCB-v1.dxf]] - You can view it with Autodesk Viewer online
==FAQ==
<div class="toccolours mw-collapsible mw-collapsed"><div style="font-weight:bold;line-height:1.0;">Q: Does the X729 support SSD1327 OLED Display or LCD 12864?</div><div class="mw-collapsible-content">A: A:NO, the X729 does not support SSD1327 OLED Display or LCD 12864, only support ssd1306 OLED.</div></div>