O-Level-IOT-Practical-Questions

O Level IOT Practical Questions Paper

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Hello साथियों, आज कि यह पोस्ट O Level IOT Practical Questions के बारे में लिखी गयी हैं| इस पोस्ट में लिखे गये IOT Practical Question दिये गये है इस में से कुछ कई बार पूछे जा चुके है इस लिए ये सभी Questions Exam के लिए Important हो जाते हैं इन सभी Question को solve कर ले जिससे आप अपने Practical को ओर बेहतर कर सकते हैं|

यदि आप O Level Practical Question paper के लिए नीचे दी गयी लिंक पर click करें:-
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Question 1. Write a program to Blink default Light Emitting Diode(LED) on Arduino board with the delay of 2 sec.

Question 2. Write a program to interface LEDs on pin no. 10,11,12,13 and blink alternatively at the delay of 1 sec.

Question 3. Write a program to run pattern(s) on LEDs connect at pins 10,11,12,13. Pattern example :

on, off, off, off
off, on off, off
off, off, on, off
off, off, off, on
on, on, off, off
off, on, on, off
off, off, on, on

Question 4. Write a program to interface buzzer with Arduino board to buzz on/off with the delay of 1sec.

Question 5. Write a program to interface LED and Buzzer with Arduino board, so that buzzer is put on henever LED is on and Buzzer is put off when LED is off..

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Question 6. Write a program to interface Button and LED, so that LED blinks/glow when button is pressed.

Question 7. Write a program to interface Button, buzzer and LED, whenever the button is pressed the buzzer gives beep for 100ms and LED status is toggled.

Question 8. Write a program to interface LEDs at pins 10,11,12,13 and buttons at pins 7,8. When first time button at pin 7(increment button) is pressed first LED at pin 10 is switched on, when second time button is pressed the next LED at 11 is switched on. Similarly, when the button at pin 8 (decrement button) is pressed the LEDs are switched off sequentially.

Question 9. Write a 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 10. Write a program to interface Light Dependent Resistor (LDR) and display the values read on the Serial monitor after delay of 2 seconds each.

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Question 11. Write a program to interface Light Dependent Resistor (LDR) and LED with Arduino board. Whenever there is sufficient light falls on LDR the LED is off and when there is dark around LDR the LED is put on.

Question 12. Write a program to interface LEDs at any two PWM pins and exhibit LED fading.

Questions 13. Write a program to interface LED at PWM pin and LDR, in such a way that when the light intensity falling on LDR rises the LED glow should be reduced and after a threshold value the LED should be put off. (representing smart street light concept)

Question 14. Write a program to interface LEDs at any two PWM pins and button, to exhibit LED fading at the click of button.

Question 15. Write a program to interface any analog (pollution) sensor and display the values read on Serial monitor.

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Questions 16. Write a program to interface LCD with Arduino board and display ‘Hello world’ on it .

Question 17. Write a program to interface keypad with Arduino board and display the key pressed on Serial monitor.

Question 18. Write a program to interface LCD and keypad with Arduino board and display the key pressed from keypad on LCD.

Question 19. Write a program to interface LCD and keypad (4 X 4) , to exhibit the functionality of a basic calculator.

1234
5678
90+–
/*Clearenter

Question 20. Write a program using LCD, LEDs, Buzzer and keypad to simulate a password based security lock system. User enters 4-digit password and if the password is correct buzzer and Green LED is put on. But if the password is incorrect Red LED is put on. After three incorrect attempts Red LED along with buzzer blinks continuously.

o level iot previous year question papers | O Level Iot Practical Question Paper 2022

Question 21. Write a program to interface LCD and DHT11, displaying the value read from sensor DHT on LCD.

Question 22. Write a program to interface DHT11 or any other temperature sensor, DC Motor, to exhibit a real life situation that whenever temperature rises above a threshold value the DC motor(representing fan) starts and when temperature falls below a value, the motor stops.

Question 23. Write a program to interface LCD and Bluetooth module, to exhibit the values received from mobile handset via Bluetooth on LCD.

Question 24. Write a program to interface LED and Bluetooth module, to switch on the LED if 1 is passed through Bluetooth and switch off the LED if 0 is send.

Question 25. Write a program to interface Relay and Bluetooth module to switch on AC load (5W LED bulb, table lamp, etc) connected to relay if 1 is passed through Bluetooth and switch off the AC Load if 0 is send.

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