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DIY Science & Lab Instruments

An instrument is useful when you know what its reading means. These projects pair apparatus with repeatable comparisons: stable microscope images, lamp spectra, sensor placement, moisture calibration, and controlled fluid movement. The aim is not a dramatic number on a display, but a measurement whose limitations remain visible.

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Where to start

A cardboard spectroscope and a little library of lamps

Compare ordinary lamps with fixed optical geometry.

A steadier stand for a USB microscope

Improve the repeatability of microscope observations.

Turn an Ender 3 Kit into Three Syringe Pumps

An advanced lab build with characterization documents.

Photo credit

Figures/fig1.jpg

Sander Baas, Vittorio Saggiomo · MIT

Resized without cropping and converted to WebP for the project card.

Begin with geometry and controls

The cardboard spectroscope fixes the slit and grating geometry before comparing lamps. The USB microscope stand keeps focus, lighting, and cable movement under control. The room and soil sensor experiments make placement and calibration the work itself, instead of assuming that a sensor's output is already a reliable physical measurement.

Scale up with the original documentation

MicroscoPy includes assembly PDFs, a parts list, circuit instructions, and an optional camera chapter. The Ender 3 syringe-pump project includes build, operation, and characterization documents. It is laboratory fluidics hardware, not a device for human or animal infusion. Read the characterization and original limitations before deciding whether either apparatus fits your experiment.

15 stories and builds

MicroscoPy: Build a Motorized LEGO Microscope
Photo credit

docs/Animation.gif

Yuksel Temiz · Apache-2.0

Resized without cropping and converted to WebP for the project card.

Build guideAdvanced

MicroscoPy: Build a Motorized LEGO Microscope

Yuksel Temiz's modular Raspberry Pi and Arduino microscope, with the complete original guide, assembly animations, circuit instructions, LEGO parts list, and downloadable build manuals.

Yuksel Temiz

Added Oct 3, 2026
Turn an ESP32 into a Browser Oscilloscope
Photo credit

oscilloscope.png

Bojan Jurca · MIT

Resized without cropping and converted to WebP for the project card.

Build guideIntermediate

Turn an ESP32 into a Browser Oscilloscope

Bojan Jurca's complete setup guide for displaying ESP32 GPIO samples in a web browser, including the original interface screenshot, library requirements, FTP commands, and ADC limitations.

Bojan Jurca

Added Oct 3, 2026
Turn an Ender 3 Kit into Three Syringe Pumps
Photo credit

Figures/fig1.jpg

Sander Baas, Vittorio Saggiomo · MIT

Resized without cropping and converted to WebP for the project card.

Build guideAdvanced

Turn an Ender 3 Kit into Three Syringe Pumps

Sander Baas and Vittorio Saggiomo's open laboratory build: original project chapters, apparatus images, assembly and operating PDFs, and the characterization document.

Sander Baas, Vittorio Saggiomo

Added Oct 3, 2026
Build an ESP32 E-Paper Weather and Sensor Display
Photo credit

Pictures/IMG1.jpg

Jakub Jaszczur · MIT

Resized without cropping and converted to WebP for the project card.

Build guideAdvanced

Build an ESP32 E-Paper Weather and Sensor Display

Jakub Jaszczur's complete MQTT receiver guide, with the original finished-build and enclosure photographs, sensor list, display diagram, configuration examples, and PCB schematic.

Jakub Jaszczur

Added Oct 3, 2026
A GPS E-Paper Clock Without Wi-Fi: mattwach's Complete Build
Photo credit

images/clock_front.jpg

mattwach · Apache-2.0

Resized without cropping and converted to WebP for the project card.

Build guideIntermediate

A GPS E-Paper Clock Without Wi-Fi: mattwach's Complete Build

The full e-paper clock and weather-station guide by mattwach, including Arduino Nano and low-power variants, schematics, firmware instructions, and enclosure fabrication.

mattwach

Added Oct 3, 2026