Arduino- Exercise 4 Random Dice

These are schematic symbols for a _____________

• LED

• Microcontroller

• Resistor

• Slide switch

A variable is a number that ____________

• Changes

• Stays Constant

When declaring a long variable we use the command _______

• int

• var

• long

• const

Where in an Arduino sketch (programme code) do we declare variables and constants?

• At the end of the code

• At the top of the code

• Anywhere in the code

random generates what type of numerical data?

• variable

• constant

When deciding on variable names we use names that explain what is being stored. If we wanted do declare a 'long' variable that had something to do with light levels which name would you choose?

• switchstate

• randomlight

• lightlevel

• temperaturereading

If we wanted a random number between 1 and 6, what command would we use?

• random (1, 6);

• random (1,7);

• Random (1, 8);

If we wanted a random number between 2 and 10, what command would we use?

• random (2, 10);

• random (2,11);

• Random (1, 10);

'if' is what type of command?

• declaration

• process

• conditional/decision

• input/output

Tick the errors with this 'if' statement which displays 1 if random number selected is 1

if (randDice = 1){

digitalWrite(7, LOW);

digitalWrite(8, LOW);

DigitalWrite(9, HIGH);

digitalWrite(10, LOW);

digitalWrite(12, LOW);

digitalWrite(13, LOW);

{

• 'if' is incorrectly written

• There should be two = signs used in 'if' statements.

• Closing curly bracket is the wrong way

• One of the digitalWrite commands is incorrectly written

• Two of the digitalWrite commands is incorrectly written