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UNO ?
If you like experimenting with different electronic components but don’t have sufficient know-how, then Arduino is what you need to make a start.
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The UNO board has become synonymous with Arduino.

Components of Arduino UNO Board
The major components of the Arduino UNO board are as follows:
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USB connector
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Power port
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Microcontroller
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Analog input pins
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Digital pins
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Reset switch
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Crystal oscillator
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USB interface chip
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TX RX LEDs
Arduino Uno Pinout - Analog IN The Arduino Uno has 6 analog pins, which utilize ADC (Analog to Digital converter). These pins serve as analog inputs but can also function as digital inputs or digital outputs.
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