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An electric oven uses one kilowatt-hour of electricity in about 20 minutes, but one kilowatt-hour will power a TV for 3 hours, run a 100-watt bulb for 12 hours, and keep an electric clock ticking for 3 months.
 

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pwmUsing PWM with microcontroller is often needed in projects. Whether you want fine control of electromotor speed, or you want to change intensity of LED lamp or you simply need analog output and do not want to buy expensive Digital/Analog converter (DAC), PWM is ideal solution. In this example we will show how to configure and change parameters of PWM output on AVR microcontroller.

 

 

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