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The Experiment Box puts circuit design and coding in the same lesson. Fourteen components sit on one printed board, connected with banana plug leads that push in firmly and pull out cleanly — the same connectors used in school physics labs, so students learn a habit that transfers. What's included: Single-board layout with 14 components, connected by banana plug leads NTC temperature sensor and photocell LEDs, RGB LED and a rainbow LED ring Buzzer, 180° servo and DC motor Button, self-locking button and trimpot MOSFET transistor and resistors of several values micro:bit board and batteries are not included — add a micro:bit V2 at checkout What students practise: Current, voltage, resistance and Ohm's law, with a working circuit in front of them Reading a resistor colour code and predicting what a circuit will do Block coding in MakeCode to control components they have wired themselves Designing a circuit, then designing the program that drives it Eleven documented cases plus two circuit design exercises on the ElecFreaks wiki. Usefully, the components can be explored as a plain circuits lesson with no micro:bit at all — which makes this the one kit here that serves a physics class as readily as a digital technologies one.

The Nezha Inventor's Kit V2 is the classroom version of the kit. It charges over USB instead of eating AAA batteries, the case has fitted compartments so thirty kits survive a term, and the board carries fifteen ports — enough for builds that would run out of connections on anything smaller. What's included: Nezha V2 expansion board with a built-in rechargeable battery, charged over USB Four TT motor ports, four servo ports, four Fischertechnik motor ports and seven RJ11 sensor ports Planet X sensors: ultrasonic, crash, line-tracking, soil moisture and trimpot Red, green and yellow LED modules, a 360° Geekservo and a fast motor Over 400 building bricks, six RJ11 leads, a pin puller, rubber bands and a line-following map Storage box with fitted compartments micro:bit board is not included — add a micro:bit V2 at checkout What students practise: Building a machine to a plan, then modifying it when the plan doesn't survive contact Choosing the right sensor for a problem from a box with several options Block coding in Microsoft MakeCode, with Python and JavaScript as students progress Sustained project work across weeks rather than a single lesson Thirty-two thematic projects are documented on the ElecFreaks wiki. Bricks work with both LEGO and Fischertechnik. If you want the longest project list rather than the rechargeable battery, the Nezha 48-in-1 Inventor's Kit covers 48 builds at a lower price.

Cutebot is the micro:bit robot car most people picture when they think of one. It is small, quick and almost entirely pre-assembled — only the batteries and the ultrasonic sensor need fitting, so a class can be driving within minutes of opening the box rather than at the end of the lesson. What's included: Cutebot rear-drive car with dual N20 high-speed motors HC-SR04+ ultrasonic distance sensor Large line-following map and user guide Two RGB LED headlights, two NeoPixel rainbow lights and underbody clearance lamps Two line-tracking probes, a buzzer horn and an infrared receiver Runs on 3 x AAA batteries, not included micro:bit board is not included — add a micro:bit V2 at checkout What students practise: Sequencing and speed control — the difference between full speed and gradual Line following and obstacle avoidance using sensor thresholds Block coding in MakeCode, progressing to Python, JavaScript or C++ Measuring, adjusting and testing rather than guessing The arc-shaped shell takes knocks well and the motors are fully enclosed against dust, which matters for a robot that spends its life on classroom floors. A 3-pin port allows sensor expansion, and the body accepts standard building bricks. Measures 85 x 85 x 38 mm.

The Tinker Kit solves the problem that stops most classroom electronics lessons: messy breadboard wiring. Every module plugs into the Octopus:bit board with a keyed connector, so a class spends the lesson coding rather than hunting for a loose wire. What's included: Octopus:bit breakout board with a micro:bit edge connector OLED display, PIR motion sensor and soil moisture sensor ADKeypad, crash sensor and buzzer module Three LED modules, a potentiometer and a servo motor Crystal battery box (2 x AAA), micro USB cable and nine connection cables Full colour printed guide covering five projects, with more online micro:bit board is not included — add a micro:bit V2 at checkout What students practise: Choosing the right sensor for a problem from a box with several options Reading a value, setting a threshold and triggering an output Block coding in MakeCode, with officially certified extension packages Debugging behaviour rather than debugging wiring The Octopus:bit switches voltage level on some GPIO ports, so 5V sensors work alongside 3V ones. More than thirty documented projects on the ElecFreaks wiki cover a music machine, a plant monitor, a fish feeder, a lie detector and a maze game. Developed with Tinkercademy in Singapore, and used in classrooms in a number of countries.

The TPBot works straight out of the box without a micro:bit — it will follow a line and avoid obstacles on its preset modes alone. That matters in a classroom, because a child who is stuck can still see the thing work, then slot in a micro:bit and start changing what it does. What's included: TPBot smart car with an ABS shell Line-tracking map Sticker sheet and user manual Runs on 4 x 1.5V dry cell batteries, not included micro:bit board is not included — add a micro:bit V2 at checkout What students practise: Sequencing and steering — getting a robot to follow a planned route Using sensor input to make a decision instead of running a fixed program Block coding in Microsoft MakeCode, with Python available for older students Designing a body for the robot, then testing whether it still drives properly Lock joints on both sides and studs on the roof take standard building bricks, so the same car becomes a police car, a delivery truck or a football player. Four sensor connections and four servo connections allow expansion, and it works with our Interactive Coding Accessories Pack. Winner of a bronze IDEA Design Award. Measures 113 x 128 x 90 mm.