What is BeeHive?

BeeHive is an open system that makes it easier to build scientific equipment and to learn basic electronics. It grew out of a simple problem: researchers often need custom instruments, but building one usually means either commissioning a company or starting a bespoke design from scratch — and the result rarely gets reused.

BeeHive fixes that with a small set of standard, reusable parts and a minimal set of design rules that keep everything interoperable.

The building blocks

BeeHive has just two kinds of board:

• Mainboard — carries the microcontroller (an ESP32) and breaks out every pin through standard connectors. Most builds need exactly one.
• Daughter boards (DBs) — each does one job: drive a solenoid, switch high-power LEDs, read a temperature sensor, and so on.

They connect through a single 4-pin connector — two data lines, one power line, one ground — so any daughter board plugs into any port. Because each DB is self-contained and single-purpose, the same board works across wildly different experiments: a solenoid controller might meter a water reward for a mouse in one lab and drive greenhouse irrigation in another.

Browse the full catalogue in Ingredients.

Ingredients and recipes

We describe BeeHive the way you'd describe cooking:

A recipe lists the ingredients it uses (e.g. mainboard 1×, solenoid control board 6×), how to wire them, and the code to run them — just like a cooking recipe lists ingredients and method.

Software

• MicroPython first. BeeHive is driven mostly with MicroPython, a Python 3 implementation for microcontrollers. Since it's the same language most researchers already use for data analysis, you can go from experiment control to plotting without switching languages — and beginners learn one language for everything.
• C++ when you need it. The ESP32 can also run Arduino/C++, so you can reuse existing libraries (the mouse maze recipe does exactly this for the Adafruit servo driver).

Why not use an existing system?

BeeHive is compatible with prototyping systems like Grove, Qwiic and STEMMA (same connector order; adapter boards available). But it exists because those systems weren't built for the lab:

1. Power. Scientific gear often needs currents and voltages hobby systems don't handle — e.g. Peltier elements at 12 V / 5 A. BeeHive runs on 12 V DC and its boards are rated for it.
2. Control. Owning the ecosystem means we can design exactly the daughter boards research needs, behaving exactly as required — and fill gaps where no commercial board exists.