What microcontroller is used in the Arduino Uno?

• ATmega2560
  

• 
  PIC16F877A
  
  

• 
  
  ATmega328P
  

• 
  
  
  STM32F103

Which function is used to initialize settings like pin modes?

• void main()

• void config()

• void int()

• void setup()

Which Arduino IDE function runs repeatedly after setup()?

• loop()
  

• run()
  

• repeat()
  

• execute()

How many digital I/O pins are on the Arduino Uno?

• 6
  

• 8
  

• 14
  

• 16

Which keyword sets a pin to be an output or input?

• 
  digitalMode()
  

• 
  
  pinState()
  

• 
  
  pinConfig()
  

• 
  
  pinMode()

Which function sends voltage to a digital output pin?

• analogWrite()
  

• digitalWrite()
  

• sendSignal()
  

• setOutput()

What value is used in digitalWrite() to turn something ON?

• 1
  

• TRUE
  

• HIGH
  

• ENABLE

What does analogRead() return?

• TRUE or FALSE

• Voltage in volts

• A float from 0 to 5

• Integer from 0 to 1023

Which pins support PWM in Arduino Uno?

• A0-A5 only

• Pins marked with ~

• All analog pins

• Pins 0 to 5

Which function is used for serial communication initialization?

• startSerial()

• Serial.begin()

• SerialStart()

• serialInit()