Arduino Programming

int LED1= 4;

What statement is this?

• Void Loop

• Void Setup

• Declaration

• C language

int LED1=4;

What is 'int= integer' used for?

• Alphabets

• Capital and small letters

• Combination of Numbers and Alphabets

• Numbers

Which term is NOT used in declaration?

• Float

• Integer

• Output

int LED1=4;

Is that necessary to label LED into LED1, LED2, LED3 and so on....

• YES

• NO

int LED2=8;

What is number eight is referring in the coding above?

• Analog Pin

• 5V

• Ground

• Digital Pin

LED is setup-up to blink. LEDs is an

• Output

• Input

• pinMode

• digitalWrite

digitalWrite (LED1,HIGH);

What does it means by HIGH?

• Blinking

• Switch OFF

• Switch ON

• Sequence

delay (1000);

1000 in delay is equivalent to how many second?

• 10s

• 2s

• 60s

• 1s

digitalWrite (LED1, HIGH);

delay(1000);

digitalWrite (LED1, LOW);

What does the program do?

• LED Switch Off at the beginning, wait for 60s and then switch ON.

• LED Switch ON at the beginning, wait for 10s and then Switch OFF.

• LED Switch ON at the beginning, wait for 1s and then switch ON.

• LED Switch ON at the beginning, wait for 1s and then switch OFF.

R1: int Led1=4;

R2: void setup(){

R3: digitalWrite (LED1, High);

R4: }

LED1 was not declared above void setup. Which row is the error?

• R1

• R2

• R3

• R4