RAK3272S Breakout Board AT Command Manual
Introduction
The RAK3272S Breakout Board is built around the STM32WLE5CC chip and is designed to simplify LoRaWAN and LoRa point-to-point (P2P) communication.
To integrate LoRa technology into your projects, the RAK3272S provides an easy-to-use UART communication interface, allowing you to send AT commands. These commands enable you to configure parameters for both LoRa P2P and LoRaWAN communication. Additionally, any microcontroller with a UART interface can be used to control the RAK3272S board.
The UART serial communication interface is available on UART2 (also identified as the LPUART1 port), accessible via Pin 7 (TX2) and Pin 8 (RX2). The default UART2 communication settings are 115200 baud rate, 8 data bits, no parity, and 1 stop bit (8-N-1). Firmware upgrades can also be performed through this port. For details on the pin distribution and a reference application schematic, consult the RAK3272S Breakout Board Datasheet.
AT Commands List
There are two AT Commands set for RAK3272S depending on the firmware uploaded on the device.
In addition, aside on UART2 pins, AT commands can also be interfaced via UART1_TX Pin 5 and UART1_RX Pin 6 on J5 Header. You can configure the settings of UART1 interfaces viaRUI3 Serial Operating Modes.
- Some RAK3172 devices come with older firmware versions (v1.0.4 and below) that are not based on RUI3 (RAKwireless Unified Interface V3).
- If the host microcontroller code is based on older firmware, the RAK3172 AT Command Migration Guide provides a detailed explanation of the key differences between the two AT command sets.
