Microcontrollers & Programming
📋 What it is
A microcontroller is a tiny computer on a chip that runs a program to control circuits and sensors.
🗣️ Coach says
A microcontroller (like the chip in an Arduino or micro:bit) is a whole tiny computer on one chip. You write a PROGRAM — step-by-step instructions — and it reads sensors, makes decisions, and controls outputs automatically. It’s the brain that turns a plain circuit into a smart gadget.
🧠 Memory hook
Microcontroller = tiny programmable brain. Program tells it: read sensors → decide → drive outputs.
😂 Giggle
Why was the breadboard so popular in the lab?
Because everyone wanted to connect with it!
😲 Whoa!
The chip in a $5 micro:bit is far more powerful than the computer that guided the Apollo missions to the Moon.
✅ Quick check: What makes a microcontroller different from a plain circuit?
Say your answer out loud first — then reveal.
It runs a PROGRAM — it can be told what to do and change behaviour without rewiring.
Programmability lets one chip do many jobs.
🧪 Try it! (2 minutes)
Write a "program" in plain words for a night-light: IF it’s dark, THEN turn the LED on.