Here one motor driver is connected to arduino for driving robot. By collecting commands from arduino motor driver drive motor according to commands.Ĭircuit digram for Arduino based DTMF Controlled Robot is very similar with our other robot like PC controlled robot, Line Follower, Gesture Controlled Robot, etc. So we add a motor driver circuit to get enough voltage and current for motor. Motor driver is used for driving motors because arduino does not supply enough voltage and current to motor. If commands are match arduino sends respective command to driver section.ĭriver section: driver section consists motor driver and two DC motors. Arduino reads commands sent by DTMF Decoder and compare with define code or pattern. Here we get a tone from our cellphone by using aux wire to DTMF Decoder IC namely MT8870 which decodes the tone into digital signal of 4bit.Ĭontrol Section: Arduino UNO is used for controlling whole the process of robot. Remote section: This section’s main component is DTMF. Here an aux wire is needed for connecting DTMF module to phone.īlock Diagram for DTMF Controlled Robot using Arduino When one upper and one lower frequencies mixed then a tone is created and that tone we call Dual Tone Multiple Frequency.ĭTMF is a Dual Tone Multiple Frequency decoder module which has a MT8870 DTMF decoder IC which decodes DTMF tone signal to digital signal that are acceptable for arduino digitally. In given figure we can see two groups of different frequencies. In simple words by adding or mixing two or more frequencies generates DTMF tone. There are some frequencies that we use to create DTMF tone. DTMF stands for Dual Tone Multiple Frequency.
DTMF controlled Robot runs over mobile DTMF technology that exists in Dial tone. and makes life easy. We are here with our next robot that is Mobile or DTMF Controlled Robot. Robots are a machine which reduces the human efforts in heavy works in industries, building etc. Robots play a very important role in human life. In present time almost all the people are familiar with robots.
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