The Quadrivium EnsembleBot project is a mashup between old school musical instruments and the modern MIDI controlled world. Built by a small team over several years, these hand crafted instruments look and sound really nice. The electronics side of things is taken care of with a pile of Arduinos and off-the-shelf modules, but that doesn’t mean the […]
THE QUADRIVIUM ENSEMBLEBOT IS A LABOUR OF LOVE Continue Reading
To measure wind speed and direction, most people turn the traditional cup anemometer and wind vane. Another less-known method is to use an array of ultrasonic transducers, which doesn’t need any moving parts. [Andy] demonstrates building an ultrasonic anemometer using a cheap after-market parking distance sensor kit and an Arduino. Demo video after the break. Aside from
TURN A PARKING SENSOR INTO AN ANEMOMETER Continue Reading
What’s round, has what looks like a vacuum tube in the center, and was made in the 1950s by HP? We don’t know either, but [The Signal Path] restored one and shows us this mystery instrument in a recent video that you can see below. We aren’t going to spoil the surprise over what the device is,
MYSTERY HP GEAR TEARDOWN Continue Reading
Halloween is right around the corner and just about every Halloween project needs some kind of motion sensor. Historically, we’ve used IR and ultrasonic sensors but [Makers Mashup] decided to use an ESP32-Cam as a motion sensor in his latest animatronic creation. You can see a video of the device and how it works below. The
ESP32-CAM MAKES A DANDY MOTION DETECTOR Continue Reading
It’s a distressing moment for some of us, when a formerly prized piece of electronic equipment reaches a point of obsolescence that we consider jettisoning it. [Jon Robinson] ran into this dilemma by finding the Kenwood Hi-Fi amplifier his 17-year-old self had spent his savings on. It was a very good amp back in the
BRING THAT OLD HI-FI INTO THE 2020S Continue Reading
What do you give a six-year-old who loves going fast but doesn’t like loud noises? Convert a gas go-kart to electric of course! (Video, embedded below.) That goal started [Robert Dunn] of Aging Wheels down a long path toward a go-kart that almost, but doesn’t quite… work. If you’ve watched any of [Robert’s] videos, you know
FAIL OF THE WEEK: ALTERNATOR POWERED ELECTRIC GO-KART DOESN’T GO Continue Reading
To say that the ocean is a dynamic environment would be a gross understatement, especially when coastlines are involved. Waves crash, tides go in and out, and countless variables make even the usual conditions a guessing game. When [foobarbecue] goes surfing, he tries to take into account all of these things. The best waves at
SURF SENSOR ADDS DEPTH TO FINDING THE ULTIMATE WAVE Continue Reading
Many of us have marveled at art installations that feature marbles quietly and ceaselessly tracing out beautiful patterns in sand. [DIY Machines] is here to show us that it’s entirely possible to build one yourself at home! The basic mechanism is simple enough. The table uses a Cartesian motion platform to move a magnet underneath
BUILDING A KINETIC SAND ART TABLE Continue Reading
Student and hacker [prusteen] recently fell in love with the Pomodoro method of time management. That’s where you concentrate on your task for 25 minutes, then take a five-minute break, and repeat this four times with a longer break at the end. Initially, [prusteen] was keeping track on their phone, but hated having to change
WORLD’S CUTEST POMODORO TIMER IS ALSO A CLOCK Continue Reading
More than once, we’ve looked at a cool board like the TTGO T-Display and thought, “What can we build with this?” If you are [Volos Projects], the answer is a tiny Internet radio. He’s done a lot of other projects with the board including some games and a weather station. You can see the project in
ESP32 INTERNET RADIO IS NO GAME Continue Reading
