Published on: April 2026
DESIGN AND IMPLEMENTATION OF A LOW-COST LORA-BASED BIDIRECTIONAL TRANSCEIVER FOR EMERGENCY MESSAGING USING ARDUINO NANO
Kshitij Singh Chauhan
Dr. Arun Kumar Wadhwani
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Abstract
In areas with poor or no mobile coverage, quick and reliable communication can save lives during emergencies. This paper presents a simple, battery-powered LoRa transceiver system built with two Arduino Nano boards, LoRa modules, spring antennas, Li-ion batteries, and six tactile switches. Each device lets the user send one of six predefined short messages (such as “ALERT” or “HELP”) by pressing a button. The message appears on a small LCD screen and travels wirelessly to the paired unit, which also shows it on its own screen. The system works without internet or cellular networks and uses very little power. We describe the hardware, the code that runs it, how we put it together, and basic tests that showed it could send messages reliably over hundreds of meters in open areas. The design is cheap, easy to copy, and well suited for rural villages, hiking groups, or disaster zones.
How to Cite this Paper
Chauhan, K. S. (2026). Design and Implementation of a Low-Cost LORA-Based Bidirectional Transceiver for Emergency Messaging using Arduino Nano. International Journal of Creative and Open Research in Engineering and Management, <i>02</i>(04). https://doi.org/10.55041/ijcope.v2i4.393
Chauhan, Kshitij. "Design and Implementation of a Low-Cost LORA-Based Bidirectional Transceiver for Emergency Messaging using Arduino Nano." International Journal of Creative and Open Research in Engineering and Management, vol. 02, no. 04, 2026, pp. . doi:https://doi.org/10.55041/ijcope.v2i4.393.
Chauhan, Kshitij. "Design and Implementation of a Low-Cost LORA-Based Bidirectional Transceiver for Emergency Messaging using Arduino Nano." International Journal of Creative and Open Research in Engineering and Management 02, no. 04 (2026). https://doi.org/https://doi.org/10.55041/ijcope.v2i4.393.
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References
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- •Peer Review Type: Double-Blind Peer Review
- •Published on: Apr 17 2026
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