
Bluetooth Module Series
HCM111Z_TE-B_User_Guide 13 / 22
2.3. Arduino Interface Definition Diagram
ANT_BT
RESET_P
MIC_IN
UART0_TXD
UART0_RXD
3.3 V
3.3 V
3.3 V
GND
GND
GND
3.3 V
5 V
GND
GPIO6
GPIO4
GPIO3
GPIO1
GPIO2
GPIO5
GPIO7
LEDGPIO9
GPIO11
GPIO8
GPIO10
SPK1_P
SPK1_N
Figure 4: Arduino Interface Definition