DTMF Controlled Robot Car WITHOUT using MICROCONTROLLER
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This document describes a DTMF controlled robot project created by a team of students under the guidance of O.SRIKANTH. The robot uses two mobile phones, where one phone calls the other phone mounted on the robot to control it through DTMF tones. When buttons are pressed on the calling phone, corresponding tones are received by the robot phone and processed by a DTMF decoder chip to operate motors via a motor driver chip. Potential applications are discussed along with advantages of long distance control without coding and disadvantages of requiring a camera and incurring call charges.
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DTMF Controlled Robot Car WITHOUT using MICROCONTROLLER
- 1. Team: VISHWANATH NEHA(12K41A0270) VALABOJU BHANUPRASAD(12K41A0264) PULA SUSHMITHA (12K41A0252) ASHA SANJEEV ( 12K41A0278) Under the Guidance of O.SRIKANTH (Asst. Prof.)
- 2. There arevarious wireless modes like Bluetooth, Wi-Fi, Zig Bee, etc., but these wireless controls has limitations in its control distance. To overcome this limitation, Mobile Controlled Robot is designed to add long distant wireless controllability to your robot. This robot can be developed without microcontroller and hence it is very easy for the beginners to build it.
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- 5. Robot Chassis Motors Breadboard IC L293D IC CM8870 Resistors Capacitors Headphone Jack Wires Batteries
- 6. In DTMFControlled Robot, we use two mobile phones. This robot is controlled by a mobile phone that makes a call to another mobile phone attached to the robot. When the user calls the mobile which is mounted on the robot the call is received by auto-answer mode. In the course of a call, if any button is pressed, a tone corresponding to the button pressed is heard at the other end of the call.
- 7. This toneis called “Dual Tone Multi Frequency (DTMF)” tone. The robot receives this DTMF tone with the help of the headphone attached to the robot. The received tone is processed by the DTMF decoder IC, and then transmits the signal to the motor driver IC to operate the motors.
- 8. Can beused in military for disposing land mines. Best suited for Search and rescue operations like with human detector sensor can be used at the time of disasters like earth quake to detect the human under buildings. Addition of wireless camera helps to access this robot from any part of the world to monitor your house or office. With slight modifications can be used in industrial applications. With camera can be used in surveillance systems.
- 9. This robotcan be virtually controlled anywhere from the world. Easy to setup. No microcontroller & no tough coding.
- 10. Requires acamera to maneuver your house or office when you are far away from the robot. Call charges will be deducted according to the service provider plans when you control your robot.