Shenzhen Smart Device Technology Co.,Ltd
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◆ BAT1 RTC Battery Port
Standard 2032 port，used to install the clock battery，supply power to the system clock when power
outages.
NO. Definition Property Description
1 RTC input 3V input
2 GND ground
electrode
ground electrode
◆ MIC Port
Please note that the MIC is positive negative connection，not reverse.
NO. Definition Property Description
1 MIC- input MIC-
2 MIC+ input MIC+
Speaker
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