Quectel BC950K-GL TE-B - Page 24

NB-IoT Module Series
BC950K-GL_TE-B_User_Guide 23 / 28
Table 4: Pin Connection Between TE-B and STM32-L476RG MCU
The following figure shows the pin connection between TE-B and STM32-L476RG MCU.
UART_MCU_RX
RESET_N
WAKEUP_N
UART_MCU_TX
GND
+5 V
RI
GND
GND
BC950K-GL-TE-B
Morpho
Arduino
+3.3 V
+3.3 V
Figure 14: Pin Connection Between TE-B and STM32-L476RG MCU
MCU (Morpho)
Arduino
TE-B
Description
PA2
D1
CN9-2
UART_MCU_TX
Connect to main UART RX
PA3
D0
CN9-1
UART_MCU_RX
Connect to main UART TX
PA7
D11
CN5-4
WAKEUP_N
External interrupt for
Deep Sleep/Light Sleep
PA5
D13
CN5-6
RESET_EN
Active high
PA0
A0
CN8-1
RI
Ring indicator
+5 V
+5 V
CN6-5
+5 V
5.0 V power supply
GND
GND
CN5-7,CN6-6,
CN6-7
GND
GND
+3.3 V
+3.3 V
CN6-4
+3.3 V
3.3 V power supply
+3.3 V
IOREF
CN6-2
+3.3 V
3.3 V power supply