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VT-SBC-3588 | User Manual 27
2.4.22
J23 Line out connector (22)
There is a line out connector (1 x 4 x 2mm) next to the microphone connector for
connecting speakers to enable audio output.
Pinout description:
Pin
Name
Type
Description
1
GND
P
Ground
2
ROUT1
O
Right channel output
3
LOUT1
O
Left channel output
4
GND
P
Ground
2.4.23
J18/J19 Wi-Fi and BT antenna connectors (3)
J18 is a Wi-Fi (2.4G/5GHz) antenna connector while J19 is for both Wi-Fi (2.4G/5GHz) &
Bluetooth antennas. Both are male connectors.
2.4.24
J5 RTC battery connector (24)
The RTC battery connector is designed to connect a battery to power the RTC and
ensure
accurate timekeeping
. A 3V RTC battery is recommended.
Pinout description:
Pin
Name
Type
Description
1
RTC_P
PI
RTC power input, 3V
2
GND
P
Ground
Pin 1
Pin 1