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! Pin No. !! Pin Description
|-
| Power on/off control connecting to switch
|-
| Ground
|-
| LED+ for battery low indicator
|-
| LED+ for power on, rebooting and shutdown
|}
4. Power button (Script for power mgnt installed)
{| class="wikitable"
|-
| System rebooting
|-
| System shutting down
|-
| Force shutdown
|}
! Pin No. !! Usage
|-
| +5V power supply
|-
| I2C for RTC and battery fuel-gauge systems
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| Ground
|-
| GPIO5 for power management
|-
| GPIO12 for power management
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| GPIO13 for power management
|-
| GPIO6 for AC power loss detection