4-7. BlueTooth/WiFi Module
< Function/Wi-Fi/BT Connector Pins with Main
Reference Chart>
12 345678910 11 12 12 14 15 16 17 18 19
20
13 579246810 11 13 15 17 19 12 14 16 18 20
Wi-Fi /BT Pins Function Pins
Function Pins
1 USB DM 11 KEY1
2 USB DP 12 KEY2
3 GND 13 I2C_SCL
4 UART_TX 14 I2C_SDA
5 BT_WAKLE_UP 15 DMIC_DATA
6 WIFI_SUSPEND 16 DMIC_CLK
7 5V 17 LED
8 WIFI_WAKE_UP 18 GND
9 RESET 19 IR_LED1
10 IR_RX 20 IR_LED2
<WCT733M Pin Assignments>
<FUNCTION/IR/BT/WIFI>
Pin20 ~ Pin1
Pin Description
Pins 1 2 3 4 5 6 7 8 9
STBY 0 0 0 3.3Vdc 3.3Vdc 0 5Vdc 3.3Vdc 3.3Vdc
Power On
BT/Wi-Fi
Sig (DM)
0.2Vdc
effective
BT/Wi-Fi
Sig (DM)
0.2Vdc
effective
GND
0
3.3Vdc 3.3Vdc 3.3Vdc
VCC
5Vdc
3.3Vdc 3.3Vdc
4-22
4. Troubleshooting