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DWM-RAK4270 LoRa module integrates SX1262 and STM32L071 mcu 32-bit ARM Cortex -M0

DWM21031002

The DWM-RAK4270 LPWAN Module is based on STM32L071 MCU and an SX1262 LoRa chip integrating a 32-bit ARM Cortex -M0+ MCU provides a number of highly configurable peripherals (configurable as I2C/SPI/UART interfaces).

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Description

The DWM-RAK4270  LoRa Module 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 an ultra-low power consumption of 1.5uA in Sleep mode, 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).

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

Product 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 Details

Product Dimension: 15 x 15.5 x 2.5mm

Product Weight: 1.08g

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Product Details
DWM21031002
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DWM-RAK4270 LoRa module integrates SX1262 and STM32L071 mcu 32-bit ARM Cortex -M0

The DWM-RAK4270 LPWAN Module is based on STM32L071 MCU and an SX1262 LoRa chip integrating a 32-bit ARM Cortex -M0+ MCU provides a number of highly configurable peripherals (configurable as I2C/SPI/UART interfaces).

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