Product description: NB-IoT 2 - Cat-NB communication module with antenna - SIM7028 - Unit expansion module - M5Stack U111-B
Unit NB-IoT2 (SIM7028) from M5Stack is an advanced wireless communication module adapted to global Cat-NB bands, making it an ideal solution for IoT tasks with low bandwidth and low latency. With the built-in SIM7028 chip, it provides reliability and high signal quality thanks to the external SMA antenna socket. It supports a wide range of network protocols, including TCP, UDP, MQTT and secure TLS / SSL connections . Thanks to its low power consumption, it is ideal for applications such as remote control, asset monitoring, telemedicine and city systems such as bike rentals.
Key Features of NB-IoT 2
- Supports Global Cat-NB Bands: B1/B2/B3/B4/B5/B8/B12/B13/B14/B17/B18/B19/B20/B25/B26/B28/B66/B70/B85
- SMA antenna interface for stable connection
- Support for TCP, UDP, MQTT, TLS / SSL protocols
- Nano SIM card slot
- UART communication port 115200bps
- Data transmission speed 127 kb/s (downlink) / 159 kb/s (uplink)
- AT command control, UART communication 115200 bps
- High energy efficiency, ideal for long-term use
- Support for development platforms such as Arduino IDE
Module connection and compatibility
The NB-IoT2 module communicates via UART at 115200 bps. It can be connected to compatible M5Stack systems, such as CoreS3 , using Grove ports . For the best signal quality, the included SMA antenna should be mounted.
NB-IoT 2 Applications
The NB-IoT2 module is ideal for IoT applications such as remote control and monitoring, asset tracking, telemedicine, smart meters, and urban bike sharing systems. With global compatibility with Cat-NB bands, it is a versatile solution for integration in projects requiring low energy consumption.
Cat-NB: the perfect combination of low power consumption and wide range
Cat-NB (Category Narrowband) is a wireless communication technology developed specifically for IoT devices. It belongs to the NB-IoT (Narrowband IoT) standard within LTE and is designed for low-bandwidth data transmission with very low power consumption . Cat-NB offers reliable communication over long distances. With Cat-NB, IoT devices can efficiently transmit small data packets even in places with limited coverage.
In our offer you will also find other M5Stack modules.
Technical specification of Unit NB-IoT2
- Communication module: SIM7028
- Cat-NB Bands Supported: B1/B2/B3/B4/B5/B8/B12/B13/B14/B17/B18/B19/B20/B25/B26/B28/B66/B70/B85
- Network protocols: TCP, UDP, MQTT, TLS / SSL
- Antenna interface: SMA
- Communication: UART 115200 bps
- Power consumption: Standby current: 3.1 mA, operating current: 36 mA (at 5 V)
- Dimensions: 71.5 x 24 x 8 mm
- Weight: 12.4 g
Kit Contents
- 1x Unit NB-IoT2 module (SIM7028)
- 1x SMA Antenna
- 1x Allen key
- 1x Grove Cable