CONTENTS

Unit NB-IoT CN

SKU:U112

Description

Unit NB-IoT CN is a NB-IoT wireless communication module that matches the China region Cat-NB frequency band. Built-in SIM7020C communication module, adopts serial communication (AT command set control), and integrates SMA external antenna interface to improve the communication quality and signal stability of the device. The SIM7020C module is the best for applications with low latency, low throughput. The excellent solution is very suitable for IoT applications such as metering, remote control, asset tracking, remote monitoring, telemedicine, and shared bicycles.

Product Features

  • Applicable to China

  • Strong signal access capability

  • AT command control

  • SIM card type: Nano

  • External antenna: SMA antenna

  • Serial communication: UART 115200bps

  • Cat-NB frequency band:

    • B1/B3/B5/B8

  • Data transmission (kbps):

    • 26.15(DL)/62.5(UL)

  • Network protocol:

    • TCP/UDP/LWM2M/COAP/ MQTT/HTTP/HTTPS/ TLS/DTLS/DNS/NTP/ PING/OneNET/Telecom Cloud/Aila Cloud*

Include

  • 1x Unit NB-IoT CN
  • 1x SMA antenna
  • 1x HEX KEY

Applications

  • Smart meter
  • Remote monitoring
  • Shared bicycles

Certification

  • RoHS/REACH/CCC/CTA/SRRC/Mobile/Unicom/Telecom/ATEX

Operator certification

  • China Telecom/China Unicom/China Mobile

Specification

Resources Parameter
Module SIM7020C
Support Cat-NB frequency band B1/B3/B5/B8
Network protocol TCP/UDP/LWM2M/COAP/ MQTT/HTTP/HTTPS/ TLS/DTLS/DNS/NTP/ PING/OneNET/Telecom Cloud/Aila Cloud*
communication UART 115200bps
Net weight 12.8g
Gross weight 55g
Product Size 71.5*24*8mm
Package Size 95*65*25mm

Pin mapping

M5Stack TX(GPIO17) RX(GPIO16) 5V GND
Unit NB-IoT CN RX TX VIN GND

Schematic

Example

Arduino

Video