M5Stack C-Back NB-loT Global Version (SIM7020G)

The CBack NB-IoT is an NB-IoT communication module adapted to the M5StickC/C Plus series, with a built-in SIM7020G module that covers most of the world’s Cat-NB frequency band. It integrates the SMA external antenna interface, improves the communication quality, and the signal stability of the device. It supports a variety of common IoT communication protocols (MQTT, HTTP, CoAP, etc.), which is suitable for various low-latency and low-throughput application scenarios.

Features

• Compatible with M5StickC/C Plus series
• AT command control, UART transmission rate: 115200bps
• SIM card type: Nano
• External antenna: SMA antenna
• SIM7020G national telecommunications certification
  

Specifications

Resources	Parameters
Communication module	SIM7020G
The Cat-NB band is supported	B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B66/B70/B71/B85
Data transfer speed	126(DL)/150(UL)
Network protocols	TCP/UDP/LWM2M/COAP/ MQTT/HTTP/HTTPS/ TLS/DTLS/DNS/NTP/ PING/OneNET/Telecom Cloud/Aila Cloud*
Communication method	UART 115200bps
authentication	CE*/FCC*/GCF*/PTCRB*/RoHS/REACH/ATEX/TIM*/Deuts Telecom*/Vodafone*/T-Mobile*
Product Size	68mm × 24mm × 21mm
Package Size	90mm × 35mm × 21mm
Product Weight	12.2g
Package Weight	25g

Resources

• Product Wiki

• SIM7020 Series datasheet

• SIM7020 Series_Ayla_Application Note_V1.03

• SIM7020 Series_CTBURST_Application Note_V1.01

• SIM7020 Series_CoAP_Application Note_V1.03

• SIM7020 Series_EAT_Environment & Compilation & Burning Guide_V1.02.

• SIM7020 Series_FOTA_Application_Note_V1.02

• SIM7020 Series_HTTP(S)_Application Note_V1.04

• SIM7020 Series_LWM2M_Application Note_V1.03

• SIM7020 Series_Low Power Mode_Application Note_V1.05

• SIM7020 Series_MQTT(S)_Application Note_V1.05

• SIM7020 Series_NVRAM_Application Note_V1.02

• SIM7020 Series_SAT_Application Note_V1.01

• SIM7020 Series_SNTP_Application Note_V1.03

• SIM7020 Series_TCPIP_Application Note_V1.04

• SIM7020 Series_AT Command Manual_V1.05

Package Contents

• 1x CBack NB-IoT CN
• 1x SMA antenna
• 2x M2x4 screws