User's Manual

LITEMAX Electronics Inc. Page 28
CN14: RS232 Connector (3PIN 2.0mm)
Pin No. Function Pin No. Function
1 UART TX 2 UART RX
3 GND
CN20: LINE IN (3PIN 2.0mm)
Pin No. Function Pin No. Function
1 AUDIO-R 2 AUDIO-L
3 GND
CN17: Speaker Connector (2PIN 2.0mm)
Pin No. Function Pin No. Function
1 SPK_R+ 2 SPK_R-
CN18: Speaker Connector (2PIN 2.0mm)
Pin No. Function Pin No. Function
1 SPK_L+ 2 SPK_L-
CN19: Interrupt Control (4PIN 2.0mm)
Pin No. Function Pin No. Function
1 5V 2 INT
3 GPIO
4 GND
Reserve for some control
CN6: Ambient (2PIN 2.0mm)
Pin No. Function Pin No. Function
1 3.3V/5V 2 Sensor Out
CN21: Audio out connector (3PIN 2.0mm)
Pin No. Function Pin No. Function
1 Audio R out 2 Audio L out
3 GND
For audio connect to another Audio AMP