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Brand: ELECFREAKS
Turn your micro:bit into a real electronics lab — no breadboard, no mess, no experience needed
Complete your purchase:
Age
8+
Batteries
2 x AAA (not included)
Projects
39 project cases
Guide
Online wiki
Soldering
Not Required
Coding
MakeCode & MicroPython
The BBC micro:bit is one of the most used coding tools in classrooms worldwide. The Tinker Kit gives your child the sensors and components to go further — without the frustration of tangled wires.
Write code and watch something physical happen — a light turns on, a servo moves, a buzzer sounds. The feedback loop is instant and deeply satisfying.
Colour-coded 3-pin connectors replace messy breadboards. Custom MakeCode blocks mean your child codes sensors by name, not by memory. It just works.
Start with drag-and-drop blocks in MakeCode. When your child is ready, the same kit runs in JavaScript or Python — no new hardware needed.

The micro:bit on its own is a powerful little computer — but the Tinker Kit is what turns it into a proper electronics lab. The included Octopus:bit expansion board breaks out all of the micro:bit's ports into colour-coded connectors, so your child simply plugs in a sensor and starts coding. No breadboard. No jumper wire diagrams. No confusion. The 13 included modules — from a PIR motion sensor and soil moisture probe to a servo motor, buzzer, and OLED display — connect the same way every time, leaving your child free to focus on what they're building, not how to hook it up.
Everything about the Tinker Kit is designed to reduce friction and maximise learning time.
Colour-coded 3-pin connectors click into the breakout board. No breadboard, no wiring diagrams.
Custom MakeCode extensions for every sensor. Drag in a block labelled 'read soil moisture' and it works.
Free step-by-step guides for all 39 projects at the ELECFREAKS Wiki — no printed book to lose.
Projects range from a simple alarm box to a self-driving car and a Morse code transmitter.
The Octopus platform has hundreds of compatible sensors. Add ultrasonic, colour, or temperature modules as skills grow.
All connections are plug-in. Safe for children to use at home, no specialist tools needed.

There's a moment every maker remembers — the first time their code made something in the real world happen. A light turned on. A buzzer sounded. A servo moved exactly as intended. The Tinker Kit is full of those moments. Your child writes a few blocks of code, presses download, and watches their plant monitor check moisture levels, or their intruder alarm trigger when someone enters the room. The projects are designed to be useful, not just instructional — which is exactly why children keep coming back.
39 hands-on projects with step-by-step online tutorials
Projects progress from beginner automations to games to advanced engineering builds. Start wherever your child is — there's no set order.

Build a motion-activated light using the PIR sensor — turns on automatically when someone enters a room.
Learn: Motion sensing, conditionals

Read soil moisture levels and display alerts when your plant needs water — a real IoT device.
Learn: Analog sensors, OLED display, thresholds

Set up a PIR-based alarm that sounds when motion is detected in a defined area.
Learn: Event-driven programming, alarm output

Repurpose the moisture sensor as a galvanic skin response detector — the micro:bit measures nervousness.
Learn: Data comparison, statistics, biology meets electronics

Program the servo to rotate at timed intervals — a genuinely useful automated feeder.
Learn: Servo control, time-based programming, automation

Assemble an acrylic car chassis with two servo motors and program it to drive autonomously.
Learn: Motor control, hardware assembly, directional programming
Plus 33 more: Music Machine, Electro-Theremin, Flappy Bird, Snake Game, Space Shooter, Security Door, Morse Code Transmitter, and more
Real projects built with the Tinker Kit — from classroom first builds to DIY home sensors.

















| Compatibility | BBC micro:bit V1 and V2 |
| Breakout Board | Octopus:bit (EF03405) |
| Voltage | 3.3V / 5V switchable via hardware switch |
| Programming | MakeCode (blocks), JavaScript, MicroPython |
| Power | 2 × AAA batteries or USB (5V) |
| Electronic Modules | 13 (plus jumper wires) |
| Project Cases | 39 (free online wiki tutorials) |
| Servo Torque | 1.6 kg/cm |
| Display | 0.96" OLED (128 × 64 pixels) |
| Package Dimensions | 192 × 135 × 38 mm |
| Weight | ~250g |
| Soldering Required | No |
39 projects. Real sensors. Code that does something. Give your child the kit that grows with them.