How many analog pins are used in Arduino Mega board?

The correct answer is A. 16.

The Arduino Mega 2560 board has 16 analog inputs, labeled A0 through A15. Each analog input can read a voltage between 0 and 5 volts. The Arduino Mega 2560 also has 54 digital input/output pins, of which 14 can be used as PWM outputs. The board also has 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button.

The Arduino Mega 2560 is a powerful board that can be used for a variety of projects. It is a good choice for projects that require a lot of input/output pins, such as robotics or home automation.

Here is a brief explanation of each option:

• Option A: 16. This is the correct answer. The Arduino Mega 2560 has 16 analog inputs.
• Option B: 14. This is incorrect. The Arduino Mega 2560 has 16 analog inputs, not 14.
• Option C: 12. This is incorrect. The Arduino Mega 2560 has 16 analog inputs, not 12.
• Option D: 8. This is incorrect. The Arduino Mega 2560 has 16 analog inputs, not 8.