Latest Hacks

Arduino Detects Pants on Fire

Arduino Detects Pants on Fire

  Hard as it is to imagine, lie detectors have been sold as children’s toys for a number of years. A simple battery-operated device clipped to your fingers and would show the conductivity of your skin. The concept — which is probably not very reliable — observers that lying causes […]

Expose your Raspberry Pi on Any Network

Expose your Raspberry Pi on Any Network

  Everyone’s talking about the Internet of Things (IoT) these days. If you are a long-time Hackaday reader, I’d imagine you are like me and thinking: “so what?” We’ve been building network-connected embedded systems for years. Back in 2003, I wrote a book called Embedded Internet Design — save your […]

Grinding Gears: Figuring Out The Ratio

Grinding Gears: Figuring Out The Ratio

  Practically any combination of motor and gearbox can be mathematically arranged to fit all sorts of problems. You could lift a crane with a pager motor, it just might take a few hundred years. However, figuring out exactly what ratio you need can feel bit backwards the first time […]

Hackaday Prize Entry: Text To Speech The Hard Way

Hackaday Prize Entry: Text To Speech The Hard Way

Studies have shown reading to children leads to improved academic performance later in life, a trait that will make them more competitive in the workforce, and ultimately happier human beings. It follows, then, that having a robot read to children will also lead to happier and more productive adults, while […]

Clustering A Lot Of Raspberry Pi Zeros

Clustering A Lot Of Raspberry Pi Zeros

  It became something of a cliche a few years ago in online discussions, whenever a new single board computer was mentioned someone would pop up and say something like “Imagine a Beowulf cluster…“. Back then it was said largely in jest, but with the current generation of boards it’s […]

ESP32 Hands-On: Awesome Promise

ESP32 Hands-On: Awesome Promise

  The ESP32 is looking like an amazing chip, not the least for its price point. It combines WiFi and Bluetooth wireless capabilities with two CPU cores and a decent hardware peripheral set. There were modules in the wild for just under seven US dollars before they sold out, and […]