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Cellphone Operated Robot Using Microcontrollers

Component Required: IC1 - MT8870 DTMF decoder IC2 - ATmega16 AVR microcontroller IC3 - L293D motor driver IC4 - 74LS04 NOT gate D1 - 1N4007 rectifier diode R1, R2 - 100-kilo-ohm R3 - 330-kilo-ohm R4-R8 - 10-kilo-ohm C1 - 0.47μF ceramic disk C2, C3, C5, C6 - 22pF ceramic disk C4 - 0.1μF ceramic disk XTAL1 - 3.57MHz crystal XTAL2 - 12MHz crystal S1 - Push-to-on switch M1, M2 - 6V, 50-rpm geared DC motor Batt. ...

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