DTMF Controlled Robot Using Mobile Phone | radiomarket.in

The DTMF Controlled Robot is an innovative robotics project that allows a robot to be controlled remotely using mobile phone keypad tones. This system uses Dual Tone Multi Frequency (DTMF) signals to send commands over a cellular network, making it effective even at long distances.

The project uses a DTMF decoder (MT8870), Arduino or NodeMCU microcontroller, motor driver module, and DC motors. When a user presses a key on a mobile phone during a call, the corresponding DTMF tone is decoded and converted into control commands such as forward, backward, left, right, and stop.

This project helps students understand DTMF signal processing, wireless communication, robotics control, and embedded system programming. It is ideal for engineering mini projects, diploma electronics projects, robotics exhibitions, and STEM learning programs.

DTMF-controlled robots are useful in remote surveillance, military applications, disaster management, industrial automation, and long-range robotic control systems. The project can be enhanced with camera integration, obstacle avoidance, GPS tracking, and IoT-based monitoring.

Available at radiomarket.in, offering reliable DTMF modules, Arduino boards, motor drivers, and robotics project kits.