RAK Wireless · LoRa · WisDuo · Breakout Board · RAK4270-D3 · EU868

RAK Wireless WisDuo Breakout Board

RAK4270-D3

overview

The RAK4270 Breakout Board is a simple board specially designed to facilitate the external connection of the RAK4270 pins. The main purpose is to access the pins of the breakout module via two (2) rows of 2.54mm headers. It is convenient for users to debug the RAK4270 module.

The RAK4270 LoRa module incorporates a STM32L071 MCU and a SX1262 LoRa chip, which supports eight (8) spreading factors (SF5~SF12) and a signal bandwidth that can be adjusted between 7.8kHz and 500kHz. It has an ultra-low power consumption of 1.5uA in idle mode, but can reach a maximum output power of 22dBm in transmit mode. As a receiver, it can reach a sensitivity of -138dBm.

The module conforms to the LoRaWAN 1.0.2 protocol, so it can be used to implement LoRa networks or Lora point-to-point communication. The module is suitable for various applications that require long-range and low-power data collection, such as smart meters, supply chain and logistics tracking, sensors in agriculture, smart cities, etc.

This module is intended to be controlled by an external controller via its UART interface by sending a series of AT commands. These AT commands not only control the state of the module but also set the LoRaWan communication parameters and payloads.

Characteristics

• LoRa® module for Smart City, Smart Agriculture, Smart Industry
• I/O ports: UART/I2C/GPIO
• Temperature range: -40°C to +85°C
• Supply voltage: 2.0V ~ 3.6V
• Supported bands: EU433, CN470, IN865, EU868, AU915, US915, KR920 and AS923
• Low-power wireless systems with 7.8kHz to 500kHz bandwidth
• Ultra-low power consumption 1.5uA in sleep mode
• Core: ARM 32-bit Cortex - M0+ with MPU
• Up to 128KB flash memory with ECC
• 20KB RAM
• 6KB data EEPROM with ECC

Link to data sheet

RAK4270 Breakout Board | RAKwireless Documentation Center