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! | 1|| Power on/off control connecting to switch|-| 2 || Ground|-| 3 || Ground|-| 4 || LED+ for power on, rebooting and shutdown|} <span style="color:#5671B0;font-size:200%;">❹</span> Power button (Script for power mgnt installed){| class="wikitable"! Press and Release !! Raspberry Pi and X708 turn on|-| Press and hold for 1~2 seconds || System rebooting |-| Press and hold for 3~7 seconds || System shutting down |-| Press and hold for >8 seconds || <span style="color:red;">Force shutdown</span>|} <span style="color:#5671B0;font-size:200%;">❺</span> Function LEDs{| class="wikitable"! LED Name !! Usage|-| BAT LOW || LED red on indicates battery low (≤3.0Vdc) or blue power button pressed (Jumper for ASD inserted)|-|5V OUT || LED green on flashing indicates 5V power out and UPS powered by battery|-| AC FAIL || LED red on indicates AC power loss or PSU failure or PSU disconnected|-| PWR ||LED blue indicates Stays on - Power on Blinks rapidly - system rebooting Blinks slowly - Shutting down|} <span style="color:#5671B0;font-size:200%;">❻</span> Fuel gauge - LED Indicator Operation of Discharging{| class="wikitable"! Capacity C (%) !! D1 !! D2 !! D3 !! D4|-| C ≥75% || ON || ON || ON || ON|-| 50%≤C＜75% || ON || ON || ON || OFF|-| 25%≤C＜50% || ON || ON || OFF || OFF|-| 3%≤C＜25% || ON || OFF || OFF || OFF|-| 0%＜C＜3% || Flashing || OFF || OFF || OFF|} Operation of charging{| class="wikitable"! Capacity C (%) !! D1 !! D2 !! D3 !! D4|-| Fully charged || ON || ON || ON || ON|-| 75%≤C || ON || ON || ON || Flashing|-| 50%≤C＜75% || ON || ON || Flashing || OFF|-| 25%≤C＜50% || ON || Flashing || OFF || OFF|-| C＜25% || Flashing || OFF || OFF || OFF|} <span style="color:#5671B0;font-size:200%;">❼</span> Pins and GPIO used {| class="wikitable"! Pin No. !! Usage !! Remark|-| 2, 4|| +5V power supply|||-| 6|| Ground |||-| 29|| GPIO5 for power management|||-| 32|| GPIO12 for power management ||
! 2| 33|| GroundGPIO13 for power management||
! 3| 31|| LED+ GPIO6 for battery low indicatorAC power loss detection (Jumper for PLD inserted,High=POWER loss,Low=Power supply normal)||
! 4| 36|| LED+ GPIO16 for power fan speed: HIGH => fast, LOW=> slow|| <span style="color:red;">New added on, rebooting and shutdownV1.2</span>
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{{GD Template Impl}}
[[File:X708-V12-IMG-9489-interface-2.jpg]]
4-Pin Function Header for X708 V1.2
[[File:X708-V12-IMG-9481-01.jpg|X708 Jumper Function]]
[[File:X708-fn.jpg|none]]
<span style="color:# 5671B0;font-size:200%;">❶</span> Power Jack and Connectors
{| class="wikitable"
| Power input || 5Vdc +/- 5% , ≥3A
| USB power in socket || Type-C
|-
| UPS power output || 5.1Vdc 8A(Max.)
|-
| Power output connector || 2-pin XH2.54mm 2pin*2
|}
* Don't power the Raspberry Pi via the Pi's type-C USB socket
* X708 can be powered via the onboard DC jack or Type-C USB power socket
<span style="color:#5671B0;font-size:200%;">❷</span> 6-Pin Function Header for X708 V1.0
{| class="wikitable"
Pin 5&6
||
*<span style="color:red;">NOTE: ASD fundtion is removed on V1.2 version,but you can achieve this function through software programming.</span>
* Short - Automatic shutdown enabled when battery low (≤3Vdc )
* <span style="color:red;">Procedure to enable ASD function --IMPORTANT</span>
|}
<span style="color:# 5671B0;font-size:200%;">❸</span> How to connector external power switch
{| class="wikitable"
! Pin No. !! Pin Description
|-
|-
|-
|-
|}
<span style="color:#5671B0;font-size:200%;">❽</span> 18650 battery dimension
[[File:18650size.png|none]]
<span style="color:red;">Please do not use 18650 battery with built-in protection circuit</span>
<span style="color:#5671B0;font-size:200%;">❾</span> How to programming to get ASD function on V1.2 version
The following is fake C/C++ code:
<pre>
while(1) {
// You need to implement getCurrentVoltage function
float fVoltage = getCurrentVoltage();
if (fVoltage <= 2.5) {
//execute shut down command, "sudo x708off"
break;
}
}
<pre>
Return to [[X708]]
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