
Bluetooth Module Series
HCM111Z_TE-B_User_Guide 17 / 22
3.1.2. Operation Procedures of Using TE-B Alone
1. Install USB-to-UART driver which can be downloaded from the following link:
https://www.ftdichip.cn/Drivers/VCP.htm
2. Check the TXD, TXD_M0, RXD and RXD_M0 of the J0201 (Arduino interface) on the TE-B that
whether them are connected with a jumper cap or not.
3. Switch S010
1 (power switch) to “ON”.
4. Connect the J0301 (USB power supply interface) with PC via Micro-USB cable. Serial port
information will be shown on “
Device Manager
” of PC. Among them, "USB-Enhanced-SERIAL
CH9102 (COM48)" (corresponding to USB Serial Converter A) is connected to the main UART of
HCM111Z TE-B, which can be used for AT command transmission, data transmission and firmware
upgrade. For details of UART configuration, see
document [1]
Figure 7: USB-to-UART Interface Displayed on PC