DTMF Controlled Robotics

Mobile phones used to control and access a lot of devices such as TVs,  ACs and lot many. The concepts and the process behind using our smart phones as a remote for all smart systems can be learned and taught in much easy pattern with the use of robots. We will make our participants to design and develop a robot and control its working and process with the inputs from our smart phones. With this workshop one will learn to simple access and control devices using DTMF tones from the keypad of the cellphones.


Can access computer system and make use of internet to perform search over Google.

Need to Prepare?

Prior programming experience is not required.

Tools Expected:-

Windows OS based PC, Internet Connection, Notebook and Pen

Tools Provided (for the session):-

L293D Dual H-Bridge Motor Driver Board, IR sensor, DTMF Module, DC geared motors, Chassis, Caster wheel, Clamp, Wheel, Screw Driver, Stud, Screw, Battery Connector with DC Jack


Operating System, Logic creation, Integrated circuit, Basic of electronics, Sensors, DTMF and Motors


This workshop will be addressed with hands-on session in developing interesting robotic car which can be controlled using our mobile phone with the help of DTMF technology. A student will be able to come up with a machine which can be controlled by using a remote Cellphone.


  • Line Follower Robots
  • Edge avoidance Robots
  • Obstacle avoidance Robots
  • Designing, Development and Controlling of a robot from mobile phone using DTMF technology.


2 Days (7 hours each)


Day 1
Session 1-  (03:30 hrs)
Introduction to basic electronics
  • Resistor
  • Transistor
  • Switch
  • Pushbuttons
  • LED
  • Motors
  • Sensors (Digital vs Analog)
  • Operational Amplifier
  • Pull-Ups and Pull Down Concepts
  • Basics of operation of the electronics components
  • Basics of Circuit Connection
  • Basics of Robotics


Session 2- (02:30 hrs)
Introduction to Microcontroller
  • What is Microcontroller?
  • Difference between microcontroller and micro processor?
  • Microcontroller Architecture and interfacing
  • How can we use a microcontroller in our own circuits?
  • Microcontroller Programming in ‘C’
  • Writing your First ‘C’ Program in AVR Studio
  • Compilation and debugging
  • Loading Compiled ‘C’ Program on a Microcontroller
  • Session Recap


Day 2
Session 1- (03:30 hrs)
Introduction to Motor Driver and Motor
  • Introduction to H-Bridge
  • Connection of Motors to the Motor Driver
  • Connection of Sensors to Motor Driver as Inputs
  • Description of Motors
  • Different types of motors


Concepts of Different Robots
  • Line follower robots
  • Edge avoidance robots
  • Obstacle avoidance robots


DTMF decoder ICs
  • What is DTMF?
  • Interfacing of DTMF ICs
  • Concept and Algorithms
  • Testing of a DTMF Circuits


Session 2- (02:30 hrs)
Assembling of Autonomous Robot
  • Assembling of Mobile robotics Kit
  • Programming of Atmega 8 microcontroller for Mobile control Robot
  • Testing of Final Circuit
  • Test run of Mobile Controlled Robot
  • Session Recap


Zonal Round of SkillThon
  • Competition
  • Certificate distribution and acknowledgement


INR 1100 (GST exclusive) Per Participation