RAK3172 – Compact, low-power LoRaWAN module – RAKwireless
General Description
The RAK3172 from RAKwireless is a low-power LoRa/LoRaWAN transceiver module based on the STM32WLE5CC microcontroller. This ultra-compact module supports LoRaWAN 1.0.3 classes A, B, and C and operates in both LoRaWAN and point-to-point (P2P) communication. It is fully compatible with the RAK Unified Interface V3 (RUI3) firmware, allowing simplified development via API or AT commands. Thanks to its high hardware flexibility (with or without IPEX connector, with or without TCXO), the RAK3172 can be easily integrated into various long-range IoT scenarios and is ideal for prototyping, industrial production, and multi-region global deployment.
Targeted Applications
- LoRaWAN networks for smart cities
- Long-range agricultural sensors
- Industrial asset monitoring
- Home automation or telemetry solutions
- Custom IoT deployments based on P2P LoRa
Highlights
- Based on STM32WLE5CCU6 (32-bit ARM Cortex-M4)
- RUI3 firmware with support for AT commands and RUI API
- LoRaWAN 1.0.3 compatible – Classes A, B, C
- Multi-region support: EU433, EU868, US915, AS923, etc.
- Integrated LoRaWAN and LoRa P2P modes
- Variants with or without TCXO (±2.5 ppm or ±0.5 ppm)
- Versions with or without IPEX connector (RF)
- Ultra-low power consumption (1.69 µA in standby)
- Ultra-compact dimensions: 15 x 15.5 x 3.5 mm
Technical Specifications
Characteristic |
Value |
Processor
|
32-bit ARM Cortex-M4 with MPU |
Flash memory
|
256 KB with ECC |
RAM
|
64 KB |
Food
|
2.0 V to 3.6 V |
Frequency range
|
150 MHz to 960 MHz |
LoRa bandwidth
|
7.8 kHz to 500 kHz |
Standby consumption
|
1.69 μA |
Operating temperature
|
-40°C to +85°C |
Compatibility
|
LoRaWAN 1.0.3 (Class A/B/C), LoRa P2P |
Format
|
Stamp module – 32 pins, 15 x 15.5 x 3.5 mm |
TCXO
|
±2.5 ppm or ±0.5 ppm depending on variant |
RF connector
|
IPEX (MHF1) or via RF pad depending on the version |
Interfaces and Connectors
- 1x Main UART (AT commands)
- 1x Secondary UART (Debug)
- 1x I2C
- 1x SPI
- 5x ADC inputs
- Multiple configurable GPIOs
- IPEX antenna connector or RF pin depending on model
Pack Contents
- 1 x RAK3172 STM32WLE5 Module for LoRaWAN