Hat CBack NBIoT-CN
SKU:A112
Description
Hat CBack NBIoT-CN is an NB-IoT communication module compatible with the M5StickC/C Plus series. It features a built-in SIM7020C module that covers the Cat-NB frequency bands in China. It integrates an SMA external antenna interface to enhance device communication quality and signal stability. It supports various common IoT communication protocols (MQTT, HTTP, CoAP, etc.), making it suitable for applications in various low-latency, low-throughput scenarios.
Features
- Compatible with M5StickC/C Plus series
- SIM7020C/suitable for China region
- Strong signal access capability
- AT command control
- SIM card type: Nano
- External antenna: SMA antenna
- Serial communication: UART 115200bps
- Cat-NB frequency bands:
- B1/B3/B5/B8
- Data transmission (kbps):
- 26.15 (DL)/62.5 (UL)
- Network protocols:
- TCP/UDP/LWM2M/COAP/ MQTT/HTTP/HTTPS/ TLS/DTLS/DNS/NTP/ PING/OneNET/Telecom Cloud/Ayla Cloud*
Includes
- 1 x Hat CBack NBIoT-CN
- 1 x SMA antenna
- 2 x M2x4 screws
Applications
- Smart metering
- Remote monitoring
- Shared bicycles
Specifications
| Specification | Parameter |
|---|---|
| Communication Module | SIM7020C |
| Supported Cat-NB Bands | B1/B3/B5/B8 |
| Data Transfer Speed | 26.15 (DL)/62.5 (UL) |
| Network Protocols | TCP/UDP/LWM2M/COAP/ MQTT/HTTP/HTTPS/ TLS/DTLS/DNS/NTP/ PING/OneNET/Telecom Cloud/Ayla Cloud* |
| Communication Method | UART 115200bps |
| Net Weight | 12.2g |
| Gross Weight | 25g |
| Product Size | 68 * 24 * 21mm |
| Packaging Dimensions | 90 * 35 * 21mm |
Certifications
- RoHS/REACH/CCC/CTA/SRRC/Mobile/Unicom/Telecom/ATEX
Carrier Certification
- China Telecom/China Unicom/China Mobile
Schematics
PinMap
- SIMCOM7020C
| M5StickC/C Plus | G26 | G36 | G0 | 5V | GND |
|---|---|---|---|---|---|
| CBack NB-IoT CN | TX | RX | PWRKEY | VIN | GND |
Datasheets
- 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
Softwares
Arduino
UiFlow1
Protocol
- AT Command