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3
Speaker right channel data-
4
Speaker right channel data+
1
Ground signal
2
Microphone input
3
Right sound output
J3
4
NC
5
Output detection signal
6
NC
7
Left sound output
6.6 SD Card Interface（J2）
The development board designs a Micro SD card slot circuit that can be used for system startup, burning,
and storage.
Room 02-04, 10/F, Block A, Building 8, Shenzhen International Innovation Valley, Dashi Road, Nanshan District, Shenzhen, Guangdong, China
Emai:
support@geniatech.com
Tel: (+ 86) 755 86028588
RSPK-
RSPK+
GND
INP_PHONE_MIC
R_OUT2
NC
HP_DET_L/GPIO_C_0
NC
L_OUT2
26
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