O Level M4 Practical Questions for Exam 2025: This module focuses on hands-on application of Internet of Things (IoT) concepts, preparing students for practical scenarios as assessed in the O Level 2025 exam. Students will work with microcontrollers (such as Arduino or Raspberry Pi), sensors, actuators, and basic programming to simulate real-world IoT systems.
Glow LED with Push Button in IoT: Complete Code
Write a program to interface a push button and an LED so that the LED glows when the button is pressed. Glow LED with Push Button in IoT: This program…
Blink default LEDs in IoT: Important Code for Exam
Write a program to blink the default light-emitting diode (LED) on the Arduino board with a delay of 2 seconds. Blink default LEDs in IoT: Program to blink the default…
Blink 3 LEDs Alternatively in IoT: A Complete Code
Write a program to interface LEDs on pin nos. 10, 11, 12, and 13 and blink them alternately at a delay of 1 second. Blink 3 LEDs Alternatively in IoT…
Traffic Light LEDs Program in IoT: A Complete Code
Write a program to simulate a basic traffic light with three LEDs, and each LED’s wait time is 4 sec. Traffic Light LEDs Program in IoT: This code simulates a…
LEDs in a parallel mode in IoT: Complete Code
Write a program in IoT to blink 5 LEDs in parallel mode with the delay of 1 second, 2 seconds, 3 seconds, 4 seconds, and 5 seconds. setup() Function The…
LED Program with pattern in IoT Complete Code
Write a program to run a pattern on LEDs connected at pins 10, 11, 12, and 13. The Arduino program in IoT that sequentially controls four LEDs connected to pins…
Blink 2 LEDs Program | IoT Project Code & Circuit Explained
Q. Write a program to blink 2 LEDs with a delay of 2 seconds. This is the important program in O Level Module 4 — IOT Practical — that makes…
5 LEDs Program in IoT: Complete Code and Circuit
Q. Write a program to blink 5 LEDs in serial mode with a delay of 2 seconds. This is the important program in O Level Module 4 — IOT Practical…
