NB-IoT Module Series
BC68-TE-B User Guide
BC68-TE-B_User_Guide 15 / 22
Figure 8: STM32-Nucleo Modification Diagram (Bottom View)
3.2.2. Operation Procedures of Using Multi Boards
1. Install driver for STM32-Nucleo board, which can be downloaded from the following address:
http://www.st.com/content/st_com/en/products/evaluation-tools/product-evaluation-tools/mcu-eval-to
ols/stm32-mcu-eval-tools/stm32-mcu-nucleo/nucleo-l476rg.html;
2. Install USB-UART driver, which can be downloaded from the following address:
https://www.exar.com/product/interface/uarts/usb-uarts/xr21v1412;
3. Remove 0 ohm resistors of SB13 and SB14 by soldering iron, and then solder them onto SB62 and
SB63 respectively;
4. Short-circuit pin 1 & 2 of CN2, pin 3 & 4 of CN2, pin 1 & 2 of JP5 and pin 1 & 2 of JP6;
5. Insert Micro USIM card into J303, and please choose an appropriate USIM card according to
hardware versions of BC68 module.
6. Connect rod antenna with SMA connector on J304;
7.
Switch “
UART_SWITCH
” to “MAIN UART TO MCU” state;
8. Connect Arduino interface to STM32-Nucleo board, and connect J305, J306, J307 and J308 of
BC68-TE-B to CN5, CN6, CN8 and CN9 respectively.
9. Connect CN1 of STM32-Nucleo board with PC via Mini USB cable. After powering on BC68 module,
device information will be shown on the device manager of PC.
