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O Level Online Test

O Level Exam 2025!

O Level Exam
Practical IOT Papers!

Internet Of the Things and It's Applications Practical Exam Papers!


Topic : Building IoT Applications


Question - 1
Arduino program to Blink a Light Emitting Diode LED.

Question - 2
Arduino program to fade the led bulb using for loop.

Question - 3
Arduino program to connect a led through push button.

Question - 4
Arduino program to interface led buzzer with Arduino or raspberry pi and turn ON LED for 2 second after every 3 second.

Question - 5
Arduino program to interface buzzer with Arduino board to buzz on off with the delay of 1 sec.

Question - 6
Arduino program to create automatic street light control by using LDR sensor.

Question - 7
Design a counter using an atmega microcontroller (like ATMEGA328P) using Arduino to display the number of entries per day in an office.

Question - 8
Arduino program to connect RGB Led Bulb.

Question - 9
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 - 10
Arduino program to interface security password with Arduino board to show green light for correct password and red light for incorrect password.

Question - 11
Arduino program to input any integer number and print its table.

Question - 12
Arduino program to connect with Servo Motor.

Question - 13
Arduino program to interface LCD with Arduino board and print some text.

Question - 14
Arduino program to interface soil moisture sensor.

Question - 15
Arduino application where pressing a button increases a counter value, which is then displayed on an LCD.

Question - 16
Arduino program to interface DHT 22 sensor and find the Humidity Temperature and Heat index.

Question - 17
Arduino program to interface a temperature monitoring system in a public environment which will display information.

Question - 18
Arduino program to interface a PIR (Passive Infrared) sensor.

Question - 19
Arduino program to interface gas sensor to detect the gas.

Question - 20
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 - 21
Arduino program to implement Two way traffic signal system.

Question - 22
Arduino program to run a counter and display in LCD.

Question - 23
Arduino Program to take input from serial and on the led based on input.

Question - 24
Arduino program to print all integer number from 0 to 99 using for loop.

Question - 25
Arduino program to print odd numbers from 1 to 99.

Question - 26
Arduino program to print odd numbers from 99 to 1.

Question - 27
Arduino program to read a integer number and print its table.

Question - 28
Arduino program to print the square root of a given number.

Question - 29
Arduino program to change the blinking speed of led using the potentiometer.

Question - 30
Arduino program to print Hello word in LCD.

Question - 31
Arduino program to interface the sensor and led.

Question - 32
Arduino program to sound the buzzer on press on push button for 1 second.

Question - 33
Arduino program to interface buzzer with LDR and LED.

Question - 34
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 - 35
Write a program to interface a temperature sensor (LM35) and water Nozzle with the Arduino.