From your very first blinking LED to dazzling multi-color sequences, Arduino makes it easy to bring light to life. With just a board, a few LEDs, and some code, you can experiment with patterns, ...

Daniel Ansorregui has developed LightInk, an open-source solar-powered E-ink watch inspired by 90s solar digital watches. It ...

Rohde & Schwarz recently announced the MXO3, a 1 GHz, 12-bit oscilloscope. The company sent a review unit. In this part, I ...

This valuable work identifies a subpopulation of neurons in the larval zebrafish pallium that responds differentially to varying threat levels, potentially mediating the categorization of negative ...

Well, this might just be a Hackaday first. Certainly not the circuit sculpture part, nor the wearable aspect, but the ...

Cheap and cheerful.

This is the first lesson in the Intro to Arduino Input lesson series. We assume you've already completed the Intro to Arduino Output series. If not, please complete that first! In this lesson, we'll ...

In this lesson, we'll refresh our memories about potentiometers, learn a bit about multimeters, and then introduce the concept of analog input and hook-up potentiometers as voltage dividers to Arduino ...

A quartet of students designed a patch that can detect patients' emotional states and represented GU at a conference.

If you were to point to a single device responsible for much of Hackaday’s early success, it might be the Arduino Uno. The little board from an Italian university with its easy to use dev environment ...

In this DIY project, we’ll build a super-compact H-bridge motor driver that mounts directly onto the N20 motor itself. No ...

Countries that depend on imported fertilizers—such as the Philippines—faced higher costs for these essential agricultural inputs last year, according to a 2025 report from the World Bank, the US-based ...