M5Stack Unit NB-IoT2 Module SIM7028

With the M5 Stack Unit NB-IoT2 Module SIM7028, you get a powerful wireless communication module that is suitable for global Cat-NB frequency bands. The integrated SIM7028 communication module enables a stable and high-quality connection thanks to serial communication and the external SMA antenna interface. This module supports multi-band NB-IoT network connections, ensuring wide applicability worldwide. It is specifically designed for applications with low latency and low throughput and offers excellent power management capabilities, making it ideal for long-term deployments. Perfect for IoT applications such as smart metering, remote control, asset tracking, remote monitoring, telemedicine, and bike-sharing.

Features:

• The module supports global Cat-NB frequency bands.
• The strong signal reception capability ensures stable connections.
• It features an external SMA antenna interface.
• Serial communication occurs via UART with 115200bps.
• The data transfer rate is 127 kbps (downlink) and 159 kbps (uplink).
• It supports multiple network protocols such as TCP, UDP, HTTP, and MQTT.

Application Examples:

• Remote control of devices
• Asset tracking for monitoring valuables
• Remote monitoring of sensors and systems
• Use in bike-sharing systems
• Telemedicine for remote patient monitoring

Documentation:

• M5stack Wiki
• Official M5Stack Forum
  

Technical Specifications:

• Manufacturer: M5Stack
• Manufacturer SKU: U111-B
• Communication module: SIM7028
• Supported Cat-NB bands: B1/B2/B3/B4/B5/B8/B12/B13/B14/B17/B18/B19/B20/B25/B26/B28/B66/B70/B85
• Network protocols: TCP, UDP, HTTP, TLS, DTLS, DNS, NTP, PING, LWM2M, COAP, MQTT, MQTTS, SSL
• Communication method: UART 115200bps
• Power consumption: 
• Standby power: DC5V/3.1mA
• Operating power: DC5V/36mA
• Dimension: 71 x 25 x 9mm
• Weight:  26g

Scope of Delivery:

• 1x M5Stack Unit NB-IoT2 Module SIM7028
• 1x SMA antenna
• 1x Grove cable