M4 R5 JAN 25 Practical Questions

Topic : Building IoT Applications

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Question - 1 [ O Level JAN-2025]

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

Question - 2 [ 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 - 3 [ O Level JAN-2025]

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

Question - 4 [ O Level JAN-2025]

Arduino program representing smart street light concept

Question - 5 [ O Level JAN-2025]

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

Question - 6 [ O Level JAN-2025]

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

Question - 7 [ 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 - 8 [ 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 - 9 [ 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.