Arduino Unit Quiz

Where does the command pinMode (LED1, OUTPUT); belong?

• in the void setup()
• in the void loop()
• at the very beginning before any other line of code

How many volts does an Arduino send a device when you use the command digitalWrite(pin, HIGH); ?

• 0 V
• 12 V
• 3 - 5 V
• 0 - 3 V

What is an "LED"?

• a sensor for reading the brightness of a light
• a light emitting diode
• a device that slows down the current through a circuit

Which pin on an RGB LED is the ground?

• The shortest pin

• Either end pin

• The longest pin

• Any pin will work

To which set of pins should you attach a potentiometer, photoresistor, or any analog sensor to input proper readings from the sensor?

• A0 - A15
• 2 - 13
• any pins will work

Which function starts communication with the Serial monitor?

• #define Serial;
• int Serial;
• Serial.begin(9600);

digitalWrite(LED1, LOW) will do what to an LED?

• turn it on very dim
• turn it on full
• turn it off

At the end of each line of code you must have what punctuation for it to run?

• a period .
• a semi-colon ;
• a colon :

In the following code, how long is the LED on?

• 1 second
• 3 seconds
• 1000 seconds
• 3000 seconds

What is a file in the Arduino programming called?

• a sketch
• a picture
• a diagram