Exploring Arduino Uno Basics

What is the primary microcontroller used in Arduino Uno?

• ATmega328P

• ESP8266

• PIC16F84

• ATmega2560

How many digital input/output pins does the Arduino Uno have?

• 10

• 8

• 16

• 14

What is the maximum voltage that can be supplied to the Arduino Uno?

• 5V

• 9V

• 15V

• 12V

Which programming language is primarily used for Arduino programming?

• C/C++

• Java

• JavaScript

• Python

What is the purpose of the 'setup()' function in an Arduino sketch?

• The 'setup()' function is for defining global variables only.

• The 'setup()' function is used to read sensor data continuously.

• The 'setup()' function initializes the Arduino environment before the main loop runs.

• The 'setup()' function runs the main loop of the sketch.

How can you power the Arduino Uno besides using USB?

• Power the Arduino Uno using a solar panel without a regulator.

• Power the Arduino Uno using a laptop charger directly.

• Power the Arduino Uno using an external power supply or the Vin pin.

• Power the Arduino Uno using a standard AA battery pack.

What is the function of the 'loop()' function in an Arduino sketch?

• The 'loop()' function is used to define variables in an Arduino sketch.

• The 'loop()' function initializes the Arduino board.

• The 'loop()' function stops the execution of the program.

• The 'loop()' function runs the main code repeatedly in an Arduino sketch.

What type of communication can the Arduino Uno use to connect with other devices?

• Serial, I2C, SPI

• Bluetooth

• Wi-Fi

• NFC

What is the purpose of the analog pins on the Arduino Uno?

• To store digital data temporarily.

• To control the speed of motors.

• The purpose of the analog pins on the Arduino Uno is to read analog signals and convert them into digital values.

• To supply power to external devices.

What is the maximum current that can be drawn from a digital pin on the Arduino Uno?

• 100 mA

• 10 mA

• 20 mA

• 50 mA