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@article{187847,
        author = {Sagar Khade and Aditya Pore and Samruddhi Mali and Aarti Jagtap and Umesh Kamerikar},
        title = {Low-Power Remote Device Control System using LoRa and STM32 Microcontrollers},
        journal = {International Journal of Innovative Research in Technology},
        year = {2025},
        volume = {12},
        number = {6},
        pages = {7056-7066},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=187847},
        abstract = {This paper presents the design and implementation of a long-range, low-power wireless device control system based on the LoRa SX1278 transceiver and the STM32F103C8T6 microcontroller. The proposed system enables reliable remote operation of electrical devices, such as motors, over extended distances without dependence on existing network infrastructure. The transmitter unit, equipped with a keypad interface, transmits control commands that are wirelessly received and decoded by the receiver unit, which subsequently drives a relay module to control the connected load. Communication between the STM32 and LoRa modules is established via the Serial Peripheral Interface (SPI), ensuring efficient data transfer with minimal latency. Experimental evaluations demonstrate stable system performance with an indoor communication range exceeding 100 meters and an outdoor range of up to 15 kilometers, achieving a switching delay of approximately 200–250 ms. The proposed design offers an energy-efficient, cost-effective, and scalable solution suitable for applications in home automation, industrial process control, and smart agricultural systems.},
        keywords = {LoRa, STM32, Wireless Control, IoT, Remote Switching, Low Power Communication},
        month = {November},
        }