AVR Microcontroller

Tongue For Dumb (hand gesture based communication interpreter system)

Idea behind the development of this module is to speak for the voiceless people in order to fulfill their basic needs thereby to make them self reliable and independent. It aims to facilitate vocally disabled people by means of a hand gesture based communication interpreter system.  A system that can efficiently translate gestures made by  hand to both text and auditory voice. 


Cellphone operated home appliances

Relays are devices which allow low power circuits to switch a relatively high Current/Voltage just like a coupler.

PWM: motor speed control(AVR)

Pulse width modulation is a great method of controlling the amount of power delivered to a dc motor without dissipating any wasted power.this tutorial demonstrates signal control through atmega32 using timer0 in fast pwm mode.voltage applied(Vout) on  dc motor depends on duty cycle so by increasing(from 1 to 255) or dexreasing(255 to 1) duty cycle control over motor speed can be acheived.drived relation between Vout and duty cycle gives the fo

AVR timer as PWM

Moving stepper motor through one rotation(AVR)


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