Hola! If this is your first time working with micro:bit and electronics, you are in the right place. Today, we are going to light up a LED using a few components. Super beginner and friendly — and yes, we will use code blocks!
What Do You Need
- 1 Microbit (v1 or v2)
- USB cable
- 1 LED (any color works)
- 1 Resistor (220Ω is perfect)
- Breadboard
- 2 jumper wires (or alligator clips)
LED Legs
Every LED has two legs:
- Long leg → + (Anode / Positive)
- Short leg → – (Cathode / GND)
Step-by-Step: Breadboard Time
- Place your LED on the breadboard, for example long leg on row 11 and short leg on row 12
- Place one end of a 220Ω resistor in the same row as the long leg
- Connect the other end of the resistor to a different row (e.g., row 7)
- Use a jumper wire to connect that row 7 to Pin 0 on the micro:bit
- Use another wire to connect the row with the short leg (row 12) to the GND pin on the micro:bit
MakeCode Time
Below you will see a little code preview. Just click on the “Edit” button — it will redirect to the MakeCode website.
Once you are there:
- Make sure your micro:bit is connected with a Data USB cable.
- Click the “Download” button to save the .hex file to your Microbit.
That’s it — your LED will start flashing like magic!
Try This Too
- Use Pin P1 or P2 instead
- Make it blink faster or slower
- Control it with Button A or B
You Just Did It!
Starting with electronics is exciting, and micro:bit makes it super fun.
If you liked this tutorial, leave a comment. If you want another project, just ask. I am here to help you keep learning.
¡Nos vemos in the next one!
