Overview
This session deepened the foundation from Session 01 — moving from simple LED circuits into full microcontroller programming. By end of session, every student had written and uploaded working Arduino code.
Topics
Current, voltage, and resistance — Ohm's law
How electrical circuits work in practice
Reading and using a breadboard
Arduino Uno — power and digital pins
Uploading and modifying an Arduino sketch
Digital output control
Activities
Built LED + resistor circuit on breadboard
Uploaded first sketch — LED blink program
Traffic light simulation with 3 LEDs
LED pattern lights — sequencing code
Buzzer basics — generating tones
Debugging circuit connections independently
Photos
Highlights
- Students built their first complete circuits from scratch
- LED blink from own code — a genuine confidence win
- Traffic light simulation made real-world connections click
- Left with confidence in both electronics and coding