Arduino Programming 1

Question 1

A program you write to run on an Arduino Board

Answer 1

Sketch

Question 2

An input or output connected to something e.g. output to an LED, input for a knob.

Answer 2

pin

Question 3

Value is either HIGH or LOW.
(a.k.a. on/off, one/zero)
e.g. switch state.

Answer 3

digital

Question 4

Value ranges, usually from 0-255.
e.g. LED brightness, motor speed, etc.

Answer 4

analog

Question 5

Is a signal / information
going into the board.

Answer 5

Inputs

Question 6

Is any signal exiting the
board

Answer 6

Output

Question 7

Almost all systems that use physical computing will have some form of output.
True/False

Answer 7

True

Question 8

5 Examples of Inputs:

Answer 8

Buttons Switches,
Light Sensors,
Flex Sensors,
Humidity Sensors,
Temperature Sensors

Question 9

6 Examples of Outputs:

Answer 9

LEDs,
DC motor,
servo motor,
piezo buzzer,
relay,
RGB LED

Question 10

Are digital devices – ON or OFF.
Also called – discrete

Answer 10

Microcontrollers

Question 11

Are anything that can be a full range of values

Answer 11

Analog signals

Question 12

Sets pin to either INPUT or OUTPUT

Answer 12

pinMode(pin, mode)

Question 13

Reads HIGH or LOW from a pin

Answer 13

digitalRead(pin)

Question 14

Writes HIGH or LOW to a pin

Answer 14

digitalWrite(pin, value)

Question 15

Pauses for a few milliseconds

Answer 15

delay(ms)

Question 16

Pauses for a few microseconds

Answer 16

delayMicroseconds(us)

Question 17

What are two basic sections that Arduino programs run on

Answer 17

void setup() {
//setup motors, sensors etc
}
void loop() {
// get information from sensors
// send commands to motors
}

Question 18

Is used for assigning input and outputs (Examples: motors, LED’s, sensors etc) to ports on the Arduino. It also specifies whether the device is OUTPUT or INPUT

Answer 18

setup()

Question 19

A pin on arduino can be set as input or output by using

Answer 19

pinMode function

Question 20

Makes the output voltage on pin 13 , 0V

Answer 20

digitalWrite(13, LOW);

Question 21

Makes the output voltage on pin 13 , 5V

Answer 21

digitalWrite(13, HIGH);

Question 22

reads the value of pin 2 in buttonState

Answer 22

int buttonState = digitalRead(2);

Question 23

It is like “bucket”. It holds numbers or other values temporarily

Answer 23

Variables

Question 24

Are for you – the programmer and
your friends…or anyone else human that
might read your code.

Answer 24

Comments

Question 25

Is used for single line comments

Answer 25

//

Question 26

Is used for multi-line
comments

Answer 26

/* */

Question 27

“Hello World” of Physical Computing

Answer 27

Blink

Question 28

Are sensor that are more straight forward than Analog. Signal is always either HIGH (On) or LOW (Off)

Answer 28

Digital sensors