Powerful Remote Control with STM32 and LoRa: Relay Management from Kilometers Away!

Remote Control and Monitoring of 20 Relays with STM32 and 3.5” LCD Screen

This project aims to provide remote control for 20 relays using an STM32 microcontroller and a 3.5” LCD display.

By utilizing the LoRa E32 module for wireless communication, the system ensures seamless control and monitoring of relay statuses.

Core Components:

STM32 Blue Pill: Manages relay logic, data processing, and user interface interactions.

3.5” LCD Display: Provides a real-time visual interface for monitoring relay statuses and system parameters.

4x4 Keypad: Enables command entry and specific relay control via the LCD interface.

LM2596 Voltage Regulator: Converts 12V or dual 18650 battery input into a stable power source for the system.

E32 LoRa Module: Provides long-range, reliable wireless communication between devices.

20-Relay Module: Acts as switches for external devices, all controllable through the remote interface.

PCB and STM32 Control Board: The system features a custom-designed

PCB where all GPIO pins of the STM32 are utilized to maximize performance and connectivity.

PCB AND STM32 CONTROL BOARD

The project consists of two main parts:

3D-Printed Remote Control Unit: A custom-housed handheld controller.

Custom PCB STM32 Board: A specialized printed circuit board where all GPIOs of the STM32 are utilized.

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