User's Manual
Table Of Contents
BLUE TOOTH 4.0
10
PIN ASSIGMENT
PIN Name Type Description
1 GND -- GROUND
2 I/O I N.C.
3 BUART TXD 0 UART TX OUT
4 BUART RXD I UART RX IN
5 BUART RTS I UART REQUEST TO SEND
6 PCM SYNC O PCM SYNC OUT
7 PCM CLK O PCM CLOCK OUT
8 PCM MOSI O PCM DATA OUT
9 PCM MISO I PCM DATA IN
10 BT3V3 -- 3.3v DC IN
11 BT_LDO_EN I LDO ENABLE
12 GND -- GROUND
13 GND -- GROUND
14 BT O AUDIO L
15 BT R O AUDIO R
16 GND -- GROUND
17 I/O I
18 USB D- I USB UPGRADE
19 USB D+ I USB UPGRADE
20 MIC IN I AUDIO INPUT