Micro:bit Class Sets
The board the makerspace guide told you to skip is exactly the board the STEM Studio needs. Here is why, and how to buy it.
Same device. Different pedagogy.
Our makerspace electronics guide explicitly excluded micro:bits as a default class set. The reason was structural: in a makerspace, kids build projects to take home. If the project embeds a $15 micro:bit, the school is sending $15 of gear home with every kid. That multiplies fast, does not scale, and is why we recommended through-hole soldering and discrete components in the makerspace instead.
That logic holds for a makerspace. It inverts in a STEM Studio.
A STEM Studio is "use and return" gear. The whole point is that the class set stays in the space, and a rotation of kids learns the same curriculum on the same hardware, year after year. The take-home rule does not apply because the goal is different: build understanding, not a thing. The kid leaves the micro:bit on the cart, picks it up again next week, and continues the lesson.
That is the entire case for micro:bit in a STEM Studio. Same $15 board, totally different deployment model, totally different math.
Micro:bit is the best-supported, best-documented, most-durable beginner microcontroller for schools. A BBC project turned Micro:bit Educational Foundation, now in its V2 revision, shipping to millions of classrooms with a stable free software ecosystem.
The board has an LED matrix (5x5), two programmable buttons, a speaker, a microphone, a touch-logo, an accelerometer, a compass, radio, Bluetooth, and 25 GPIO pins - all on a board the size of a credit card, for around $15. The curriculum ecosystem built on top of it is larger than any other single educational board.
Short version
Single micro:bit V2: ~$18. Good for testing before a class pack.
Go Kit (single, battery, USB): ~$22. Buy this for single-unit testing.
Starter class pack of 10: ~$250. Right size for small rotations.
Next Gen Classroom Pack of 30: ~$605. Full 30-student class set with accessories.
Accessory packs (Kitronik): ~$200 extra per class. Inventor's Kit add-ons.
Consumables: conductive thread for wearables, AAA batteries, USB cables.
Micro:bit V2 Single
Buy one Go Kit before you buy a class set. For $22 you get the board, a battery pack, and a USB cable - everything you need to run MakeCode or Python against the real hardware. Write three programs, upload them over USB, see what "edit, compile, flash, run" actually feels like for a student. Twenty minutes of hands-on work will tell you whether micro:bit fits your teacher's workflow.
The Go Kit is what to buy for the single-unit test, not the bare board. The bare board needs a battery pack and USB cable that the school probably already has on hand somewhere, but will take a week to actually find.
10-pack starter set
A 10-pack with batteries, cables, and usually some accessory components (alligator clips, LEDs, jumpers). This is the right starter size if you are pilot-testing with one or two groups of 20 kids working in pairs, or if the budget only allows one class at a time to work on micro:bits.
SparkFun, Eduporium, and Parallax all sell 10-pack starter sets. They are roughly equivalent - pick whoever has stock and fastest shipping to your district. For a US school, SparkFun and Adafruit both ship fast and have been supplying schools with micro:bit gear since 2016.
Next Gen Classroom Pack (30 boards)
This is the canonical full-class set. 30 boards, 30 battery packs, 30 USB cables, and - critically - 30 flexible plastic holders that protect the board and 30 velcro straps that let kids wear the micro:bit on their wrist or attach it to anything. The wearable straps are what transforms "a class of coding lessons" into "a class of coding lessons where kids build a step-counter and walk around wearing their own code."
At roughly $605 for the pack, this works out to about $20 per seat including all the peripherals. For a full-class deployment, this is the most efficient buy. The Micro:bit Educational Foundation sells it directly, and most resellers (SparkFun, Eduporium, Parallax, STEMfinity) also carry it.
Kitronik Inventor's Kit
A bare micro:bit is an LED display, a speaker, and some sensors. The Kitronik Inventor's Kit adds the full edge-connector breakout, a breadboard, motors, servos, LEDs, buzzers, and a curriculum book of 12 projects that ramp from "light up an LED" to "build a logic-gate puzzle." This is the kit that turns "we learned about variables" into "we built a traffic light and a piano and a reaction timer."
Add-on packs extend further: ZIP LEDs, noise pack, digital logic pack. Each adds a specific concept layer. For a multi-year curriculum, budget $30-$50 per seat in accessories beyond the base kit.
There are other good accessory makers - Elecfreaks, Adafruit, SparkFun - but Kitronik is the one most schools end up on because the documentation is written for teachers and the product line is deep enough to grow with the curriculum.
Ongoing supplies
A micro:bit class set needs consumables. Things to budget for, year over year:
AAA batteries. Each battery pack takes 2x AAA. 30 packs means 60 AAA batteries, replaced roughly once a semester under normal use. Buy in bulk; rechargeable AAAs with a charger save money long-term.
USB cables. Micro-USB cables get bent and broken. Keep a spares box with 10 extras; kids will find ways to damage them.
Conductive thread. Adafruit stainless-steel conductive thread is the consumable for wearables lessons - sewing micro:bit into fabric projects. Thread is cheap; budget $30/year.
Alligator-clip jumpers. For breadboarding and connecting external components. Kids bend these into a pretzel shape within a month. A $10 pack of 20 lasts a school year.
Replacement battery packs. The pack itself is a wear item. Budget to replace 2-3 per year out of 30.
What to pair with micro:bit class sets
Chromebook or iPad with MakeCode
MakeCode for micro:bit runs in any modern browser. Chromebooks work perfectly; iPads work via the MakeCode iOS app. No software to install, no accounts required for basic use.
Python editor (for the upper grades)
Micropython for micro:bit runs in the browser alongside MakeCode. Grade 6+ kids ready for text coding can switch editors without changing hardware.
Storage cart or case
30 micro:bits plus batteries, cables, and accessories is a real amount of stuff. The Next Gen Classroom Pack ships with three organized boxes. For a full makerspace-adjacent STEM Studio, a rolling cart with drawers is worth the investment.
Shared Scratch account for the teacher
For K-3 rollouts, Scratch-based block coding is more age-appropriate than MakeCode. Scratch has a micro:bit extension that connects over Bluetooth. Works on Chromebook or iPad.
What to skip
Common mistakes when schools buy micro:bit class sets.
Proprietary micro:bit-alternative clones
Amazon sells boards that look like a micro:bit, sometimes with more LEDs or extra sensors, at a lower price. They do not run MakeCode properly. They do not have the Micro:bit Educational Foundation's curriculum behind them. They are isolated products dressed up to look like the standard. The $15 price advantage evaporates when you realize you just invalidated every micro:bit lesson plan on the internet. Stay with the real micro:bit V2 from an authorized reseller.
Agree to Disagree ›Subscription-locked curriculum
Some education vendors package micro:bit hardware with a subscription curriculum that locks the lessons behind a per-teacher, per-year fee. That is money thrown away - the Micro:bit Educational Foundation publishes a huge library of free lessons at microbit.org/teach. Code.org's CS Discoveries course covers micro:bit for free. MakeCode has built-in tutorials. Paying a subscription to access curriculum that already exists for free is one of the most common micro:bit purchasing mistakes schools make.
Agree to Disagree ›Adafruit Clue as a "drop-in replacement"
The Adafruit Clue is a genuinely excellent board - higher-resolution display, more sensors, more memory. It is not a drop-in replacement for micro:bit though. Different ecosystem, different language support (CircuitPython primarily), different curriculum base. If your teachers chose it on the merits and want to run it, great. If you chose it thinking "it's a better micro:bit," you have bought a different platform by mistake.
Agree to Disagree ›Micro:bit V1 in 2026
The original micro:bit (V1) is still functional and schools that own class sets of it can keep using them. Do not buy new V1 boards. V2 adds the microphone, speaker, and touch logo - three sensors that unlock entire categories of lessons V1 cannot run. V2 is the same price. Buy V2.
Agree to Disagree ›All the links
Every product and brand mentioned on this page. No affiliate arrangements.