The RAK4270 Module for LoRaWAN includes an STM32L071 MCU and an SX1262 LoRa chip, which supports 8 spreading factors (SF5 ~ SF12) and signal bandwidth that can be adjusted between 7.8 kHz to 500 kHz. It has Ultra-Low Power Consumption of 2.31 μA (down to 1.61 μA @ 2.0 V), but during the Transmit mode, it can reach the maximum output power of 22 dBm. As a receiver, it can achieve a sensitivity of -138 dBm

• The module complies with the LoRaWAN® 1.0.2 protocol, so it can be used for implementing LoRa® networks or LoRa® point to point communications. The module is suitable for various applications that require long-range data acquisition and low power consumption, such as smart meters, supply chain and logistics tracking, agricultural sensors, smart cities, etc.
• This module is expected to be controlled by an external controller through its UART interface by sending a set of AT commands. These AT commands control not only the state of this module but also set the LoRaWan® communication parameters and payloads (see RAK AT Command Manual).

Features:

• It has Ultra-Low Power Consumption of 2.31 μA (down to 1.61 μA @ 2.0 V)
• Perfect for ultra-long transmission
• Highly sensitive in LoRa® modulation (~138dBm)
• Low Cost
• Stronger signal transmission (22dB max@PA_BOOST)
• Easy-to-use
• LoRa Features
• LoRa module is suitable for applications in Smart City, Smart Agriculture, Smart Industry.
• LoRa bandwidth range of 7.8 kHz to 500 kHz, SF5 to SF12, BR=0.018~62.5 kb/s

Specifications:

• Compact form factor: 15 x 15.5 x 2.5 mm (LxWxH)
• 20 pin stamp pad for PCB SMT board-to-board soldering
• I/O ports: UART/I2C/GPIO
• AT commands control interface
• Temperature range: -40°C to +85°C
• Supply voltage: 2.0 to 3.6V
• Arm Cortex-M0+ 32-bit RISC core
• 128kb flash memory with ECC
• 20kb RAM
• 6kb of data EEPROM with ECC
• Product Dimension: 15 x 15.5 x 2.5mm
• Product Weight: 1.08g

Documentation:

• Datasheet
• Quick Start Guide
• Reference Design

Package Includes:

• 1 x RAK4270 WisDuo LoRaWAN Module