Upload your first code to arduino uno

What is the primary purpose of the Arduino IDE?

• a) To power the Arduino board

• b) To write code and upload it to the Arduino board

• c) To design circuit diagrams

• d) To simulate Arduino projects

What does the green light on the Arduino Uno indicate when it's plugged in?

• a) The sketch is running

  
  

• b) The board is receiving power

• c) The board is communicating with the computer

• d) The board is in programming mode

Why is it important to use a data cable and not just a power cable for the Arduino?

• a) To charge the Arduino faster

• b) To enable wireless communication

• c) To allow data transfer between the computer and Arduino

• d) To protect the Arduino from power surges

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

• a) It runs continuously throughout the program

• b) It sets up the serial communication

• c) It runs only once when the code starts

• d) It defines the pin modes for all pins

In the blink example, which pin is used for the built-in LED on the Arduino Uno?

• a) Pin 11

• b) Pin 12

• c) Pin 13

• d) Pin 14

 What happens on the Arduino board during the upload process?

• a) The power LED turns off

• b) The board makes a beeping sound

• c) The TX and RX LEDs blink

• d) The built-in LED starts blinking immediately