To support 4G LTE / NB-IoT connection, Nuvoton Technology provides UNO-to-PCI adapter board, which allows the telecom module to be used on Nuvoton NuMaker series development platform through UART or USB interfaces. The adapter board supports Quectel EC21 4G/LTE and Quectel BG96 NB-IoT modules.

Please refer Quectel web site for EC21 module

https://www.quectel.com/product/ec21.htm

UNO to PCIe adapter board specification:

• One mini PCIe interface for specified telecom modules
  • Quectel EC21 miniPCIe (4G/LTE)
  • Quectel BG96 miniPCIe (NB-IoT)
  • ZTE ME3616 (NB-IoT)

• Support UART (via Arduino) and USB interface
• UART supports Tx/Rx/CTS/RTS signals
• UART supports 1.8v or 3.3v voltage
• One mini SIM card slot
• One RESET button
• One telecom module status LED
• Three LED controlled by GPIO

Related Resources

Adapter Board User Manual | Schematics and Layout | Online Purchase