IoTBase NBIoT
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.
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)
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
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
Related Link
- Datasheet
- 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
- AT Command
Examples
Arduino
- Examples
- Libraries
