Description

This is a telecommunication HAT which features multi communication functionalities: NB-IoT (NarrowBand-Internet of Things), Cat-M (aka eMTC, enhanced Machine Type Communication), and GNSS (Global Navigation Satellite System).

With the developing of telecommunication technology LTE, 2G/3G networks are fading away, the future world would be dominated by IoT technologies consisting of low bandwidth NB-IoT/Cat-M and high bandwidth 4G/5G standards.

This HAT supports global bands of NB-IoT and Cat-M, as well as positioning function. Due to its advantages like small size, low delay, and wide coverage, it is the ideal choice for IoT applications such as intelligent instruments, asset tracking, remote monitoring, e-health, and so on.

Features

• Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards
• Supports communication protocols such as TCP/UDP/HTTP/HTTPS/TLS/DTLS/PING/LWM2M/COAP/MQTT
• Supports GNSS positioning (GPS, GLONASS, BeiDou, and Galileo)
• Onboard USB interface, to test AT Commands, get GPS positioning data, and so on
• Breakout UART control pins, to connect with host boards like Arduino/STM32
• Onboard voltage translator, 3.3V by default, allows to be switched to 5V via onboard jumper
• SIM card slot, supports ONLY 1.8V SIM card (3V SIM card is not available)
• 3x LED indicators, easy to monitor the working status
• Baudrate: 300~3686400 bps
• Common baudrate auto-negotiation: 9600/19200/38400/57600/115200 bps
• Comes with development resources and manual (examples for Raspberry Pi/Arduino/STM32)

GNSS Specifications

• Receiver type
  • 16-channel
  • C/A code
• Bands
  • GNSS L1: 1575.42±1.023MHz
  • GLONASS: 1597.5~1605.8 MHz
  • BeiDou: 1559.05~1563.14 MHz
  • Galileo L1: 1575.42±1.023MHz
• Update frequency: 1 Hz (default)
• Data format: NMEA-0183
• Antenna: active antenna

Other Specifications

• Power supply voltage: 5V
• Logic level: 5V / 3.3V (configured via jumper)
• Overall current (idle mode): 39mA
• Module sole current (VBAT=3.8V):
  • Idle mode: 10mA
  • Sleep mode: 1.2mA
  • PSM mode: 3.2uA
  • eDRX mode: 0.59mA (eDRX=81.92s)
• Operating temperature: -40°C ~ 85°C
• Storage temperature: -45°C ~ 90°C
• Dimension: 30.2mm x 65mm