Internet of things and its applications Practical Questions

Topic : Building IoT Applications

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Question - 1 [ O Level JAN-2025]

Arduino program to interface LEDs at pins 10,11,12,13 and button at pins 7. The press of button changes the pattern of LED glow. (considering four patterns of LED glow)

Question - 2 [ O Level JAN-2025]

Arduino program to Increment and Decrement led light using 2 push button

Question - 3 [ O Level JAN-2025]

Write a program to interface a button and an RGB LED with the Arduino. On each button press, the RGB LED should change its color in the sequence: Red, Green, Blue.

Question - 4 [ O Level JUL-2025]

Write a program to print “Hello World!” to the LCD (Liquid Crystal Display) and shows the time in seconds since the Arduino was reset.

Question - 5 [ O Level JUL-2025]

Write a program to display button press count on an LCD.

Question - 6 [ O Level JAN-2025]

Arduino program representing smart street light concept

Question - 7

Arduino program to interface DC Motor with potentiometer

Question - 8 [ O Level JAN-2025]

Arduino program to interface a servo motor and a button at pin 7

Question - 9 [ O Level JAN-2025]

Write a program to interface a gas sensor (MQ-2) and a buzzer.

Question - 10 [ O Level JAN-2025]

Write a program to interface a PIR motion sensor and an LED with the Arduino. The LED should turn on for 5 seconds whenever motion is detected.

Question - 11 [ O Level JUL-2025]

Arduino program to read data from sensor and send it to a requesting client.

Question - 12 [ O Level JUL-2025]

Arduino program using any one development board (E.g., Arduino or Raspberry Pi) to read data from a sensor

Question - 13 [ O Level JUL-2025]

Write a program for detection of the light using photo resistor with output as light detected and LED state.

Question - 14 [ O Level JAN-2025]

Write a program to implement a while loop that counts from 0 to 10 and displays each count on the Serial Monitor.

Question - 15 [ O Level JUL-2022]

Arduino program to Blink a Light Emitting Diode LED

Question - 16

Arduino program to fade the led bulb using for loop

Question - 17 [ O Level JUL-2021]

Arduino program to connect a led through push button

Question - 18 [ O Level JAN-2022]

Arduino program to interface led buzzer with Arduino or raspberry pi and turn ON LED for 2 second after every 3 second

Question - 19

Arduino program to interface buzzer with Arduino board to buzz on off with the delay of 1sec

Question - 20

Arduino program to create automatic street light control by using LDR sensor

Question - 21 [ O Level JUL-2022]

Design a counter using an atmega microcontroller (like ATMEGA328P) using Arduino to display the number of entries per day in an office.

Question - 22

Arduino program to connect RGB Led Bulb

Question - 23

Arduino program to turns on LED when the button is pressed once and remains on until the button is pressed again to turn it off

Question - 24 [ O Level JAN-2021]

Arduino program to interface security password with Arduino board to show green light for correct password and red light for incorrect password.

Question - 25

Arduino program to input any integer number and print its table

Question - 26

Arduino program to connect with Servo Motor

Question - 27 [ O Level JAN-2022]

Arduino program to interface LCD with Arduino board and print some text

Question - 28

Arduino application where pressing a button increases a counter value, which is then displayed on an LCD

Question - 29 [ O Level JAN-2025]

Arduino program to interface DHT 22 sensor and find the Humidity Temperature and Heat index

Question - 30 [ O Level JAN-2021]

Arduino program to interface soil moisture sensor

Question - 31

Arduino program to interface a temperature monitoring system in a public environment which will display information

Question - 32 [ O Level JUL-2023]

Arduino program to interface a PIR (Passive Infrared) sensor

Question - 33 [ O Level JAN-2024]

Arduino program to interface gas sensor to detect the gas

Question - 34 [ O Level JUL-2024]

Arduino program to Design a night lamp using a photodiode and a LED and find out the time delay associated with turning the lamp on and off.

Question - 35 [ O Level JUL-2024]

Arduino program to implement Two way traffic signal system.

Question - 36

Arduino Program to take input from serial and on the led based on input.

Question - 37

Arduino program to run a counter and display in LCD

Question - 38

Arduino program to print all integer number from 0 to 99 using for loop

Question - 39

Arduino program to print odd numbers from 1 to 99

Question - 40

Arduino program to print odd numbers from 99 to 1

Question - 41

Arduino program to read a integer number and print its table

Question - 42

Arduino program to print the square root of a given number

Question - 43

Arduino program to change the blinking speed of led using the potentiometer

Question - 44

Arduino program to print Hello word in LCD

Question - 45

Arduino program to interface the sensor and led

Question - 46

Arduino program to sound the buzzer on press on push button for 1 second

Question - 47

Arduino program to interface buzzer with LDR and LED

Question - 48 [ O Level JUL-2022]

Design a night lamp using a LDR and a LED using Arduino Uno and find out the time delays associated in keeping ON the lamp

Question - 49 [ O Level JUL-2022]

Write a program to interface a temperature sensor (LM35) and water Nozzle with the Arduino.