O Level PR-4 — Practical Assignments with Solution

NIELIT practical assignment questions with complete solutions.

1 PDF + 11 video classes available — all free

1M4-R5.1 Practical Marathon — Assignments with Solution87-page practical marathon — Arduino UNO, breadboard and sensors, with the wiring and code for every assignment.Open

Practical Assignments with Solution — Video Classes

11 free classes — tap any video to play it right here

1Day 01 — O Level M4-R5.1 IoT Practical Questions (Jan 2026) 1:04:48

2Day 02 — O Level M4-R5.1 IoT Practical Questions (Jan 2026) 39:02

3Day 03 — LCD Interfacing with Arduino 35:57

4Day 04 — Keypad & LCD Interfacing 43:11

5Day 05 — Temperature Sensor & LCD 20:49

6Day 06 — MQ-135 Gas Sensor & Arduino 36:26

7Day 07 — DHT22 Sensor & LCD Interfacing 33:21

8Day 08 — LDR & IR Sensor Masterclass 33:50

9Day 09 — LED Fading & Sensor Logic 33:14

10Day 10 — Smart Lamp (LDR + Relay) 40:02

11Day 11 — LCD & Temperature Sensor Tutorial 28:59

PR4 Home Video Classes Full Course

Run these Arduino sketches on a virtual board — free

No kit needed: wire a virtual Arduino Uno in the simulator and watch the LEDs, LCD and sensors respond to your sketch. Each explained project gives the code and the wiring.

Open Arduino simulator Arduino Projects explained Practice questions