Using the micro:bit's PWM pins, I wired up a common-cathode RGB LED on the breadboard and wrote a simple script to cycle through different colors by adjusting the red, green, and blue intensities.  One press of button A or B on the micro: bit instantly switches the RGB LED from green → blue → red (and back again)! 



This super-simple project uses graphical programming (just drag-and-drop blocks in MakeCode) — no scary code lines required. Kids connect a few jumper wires on the breadboard, upload their program, and suddenly they’re controlling real hardware with the touch of a button. 



What kids actually gain from this “one-button” project:

✅ Input → Output logic (buttons control the light) 

✅ Conditional thinking (“If A is pressed, do this… if B is pressed, do that”) 

✅ Basic electronics (understanding 3V, GND, pins, and circuits) 

✅ Debugging & problem-solving (why isn’t it working? Let’s fix it!) 

✅ Creative confidence (they start adding more colors, patterns, or even sounds next!) 



It’s the perfect first step into STEM — turning curiosity into real-world skills that build future coders, engineers, and inventors. 

If you're just starting with micro:bit, this starter kit is fantastic. Highly recommend for anyone wanting to dive into physical computing! 

The first micro:bit project with the ELECFREAKS BBC micro:bit Starter Kit – RGB LED color mixing works perfectly! 🎨✨