Abstract

This research aims at developing a robotic system that utilizes mobile phones and dual-tone multi-frequency (DTMF) technology for remote control. The system addresses the limitations of current radio frequency (RF) circuits by offering robust control, a wide operating range, and multiple control options. The proposed system integrates various hardware components, including a mobile receiver, DTMF decoder, microcontroller, camera unit, motor driver unit, sensors, firing mechanism, mechanical arm, solar panel, and battery. The mobile receiver captures DTMF signals from the user's mobile phone, which are then decoded by the DTMF decoder. Acting as the central control unit, the microcontroller connects and controls all system components. The camera unit enables live video streaming, and the motor driver unit simplifies DC motor control. Sensors detect incidents and trigger appropriate actions and the firing mechanism and mechanical arm facilitate targeting, shooting, and object manipulation. The system receives DTMF signals, verifies the password, and executes commands. It controls robot movement, records movements, activates the auto-retrace mode, aims and shoots with the revolver, and picks up and relocates objects with the mechanical arm. Incidents are detected by sensors, which trigger appropriate responses. The system utilizes a GSM network to track its location on Google Maps. This research presents a versatile robotic system utilizing mobile phones, DTMF technology, and embedded technology principles. It offers remote control capabilities, robust control, and a broad operating range, making it well-suited for applications in surveillance, security, exploration, and rescue missions.

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