DA – Digital Applications / Arduino & Sensors (100 MCQs)

Arduino is a –

• Software program

• Sensor

• Microcontroller development board

• Power IC

Arduino UNO is based on –

• ESP8266

• ATmega328P microcontroller

• AT89S52

• STM32

The software used to program Arduino is –

• Arduino IDE

• MPLAB

• Proteus

• MATLAB

The full form of IDE is –

• Integrated Development Environment

• Internal Design Emulator

• Input Data Editor

• Interface Data Engine

The function setup() in Arduino is used to:

• Initialize variables and settings

• Run code repeatedly

• Compile code

• Display output

The function loop() is used for –

• Repeated execution of code

• Single-time execution

• Display messages

• Upload data

Arduino code file extension:

• .ino

• .hex

• .cpp

• .py

pinMode() function is used to –

• Set a pin as INPUT or OUTPUT

• Read an analog signal

• Send serial data

• Blink an LED

digitalWrite() function –

• Turns a pin ON or OFF

• Reads an analog value

analogRead() reads values between –

• 0 to 1023

• 0 to 255

• 1 to 100

• 0 to 4096