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CONTENTS

IoT-Base-NB CN

SKU:K064

Description

IoT-Base-NB CN is a functional base specifically designed for IoT NB-IoT data transmission scenarios. The kit supports powerful core master BASIC (built-in ESP32, integrated WiFi), integrates rich interface resources (I2C, UART, GPIO, RS485, etc.), adapts to a variety of common industrial field protocols (such as ModBus, etc.), and built-in SIM7020C module , It mainly covers China's Cat-NB frequency band, and integrates SMA external antenna interface to improve the communication quality and signal stability of the device. Supporting multifunctional guide rail fixed base, perfectly embedded in industrial application scenarios.

Product Features

  • SIM7020C/Applicable to China

  • Strong signal access capability

  • AT command control

  • SIM card type: MicroSIM

  • External antenna: SMA antenna

  • Serial communication: UART 115200bps

  • RS485 communication interface (with 12V input, built-in DCDC 12v to 5v)

  • Supporting multifunctional guide rail to fix the bottom plate

  • NB module status indicator

  • Supporting BASIC host

  • Grove expansion interface:

    • I2C x1
    • GPIO x1
    • UART x1

  • SIM card slot specifications: MicroSIM

  • 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/Ira Cloud*

Include

  • 1x IoT-Base-NB CN
  • 1x BASIC master
  • 1x 12V DC power adapter
  • 1x VH-3.96-2P terminal
  • 1x VH-3.96-4P terminal
  • 1x Din-mount rail fixed base plate
  • 1x SMA antenna
  • 2x M3*28 screws
  • 1x M3 hexagon wrench
  • 1x NB-IoT flow card (mobile NB flow: 300M/year, valid time: 2021.06.16-2024.05.31)

Application

  • Smart meter
  • Remote monitoring
  • Shared bicycles

Certification

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

Operator certification

  • China Telecom/China Unicom/China Mobile

Specifications

Resources Parameter
Module SIM7020C
Support Cat-NB frequency band B1/B3/B5/B8
Data transmission speed 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*
Interface resources I2C, UART, GPIO, RS485(ModBus Master/Slave)
Power supply Powered by USB 5V /12V DC power adapter
communication UART 115200bps
Net weight 71.3g
Gross weight 197g
Product Size 80*54*33mm
Package Size 98*106*57mm

Pin mapping

  • RS485
CORE G15 G13 5V GND
RS485 TX RX VIN GND
  • SIM7020C
CORE G0 G35 G12
SIM7020C NB-RXD NB-TXD PWRKEY
  • PORT
CORE G21 G22 5V GND
I2C PORT SDA SCL VIN GND
CORE G17 G16 5V GND
UART PORT TX RX VIN GND
CORE G36 G26 5V GND
GPIO PORT ADC DAC VIN GND

Schematic

Examples

Arduino

Video