How many micro controller are available for user programming on arduino uno
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answer:
The Arduino Uno is a microcontroller board based on the ATmega328 (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator, a USB connection, a power jack, an ICSP header, and a reset button.
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1
Answer:
1 (One)
Explanation:
Only microprocessor present in the Arduino UNO board in which we save our code and it execute our code very fastly. Just like when we write a program of blinking light and save it. When we connect all these in Arduino then power on then the program is executed and LEDs gets blinking.
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