Machine learning (ML) algorithms come in all shapes and sizes, each with their own trade-offs. We continue our exploration of TinyML on Arduino with a look at the Arduino KNN library. In addition to powerful deep learning frameworks like TensorFlow for Arduino, there are also classical ML approaches suitable for smaller data sets on embedded […]
Max Danilin created an automatic barrel piano that outputs MIDI signals, not through an SD card or internal memory, but by reading sheet music encoded on paper as black dots and dashes. The sheet is pulled under an array of 40 optocouplers using a hand crank — or even power drill — providing musical info to the […]
Today, we are excited to announce the arrival of the Arduino IDE 1.8.13. Significant improvements include fixing the crash on Mac OS X with multiple monitor setups and resolving the recent package_index.json issue without other user intervention. You will also notice that the boards listed in the “Tools” menu are now grouped by platform, making […]
In our day-to-day lives we encounter a wide variety of ambient sounds, and in order to highlight noise pollution, Lucía Garbo decided to make an elegant meter. The device features an outer shell designed in Fusion 360 and 3D-printed, concealing an Arduino Mega, a SparkFun Sound Detector, and associated circuitry inside. Components are neatly connected via a perfboard, […]
As a prototype for a continuously printing art project, Norbert (AKA “HomoFaciens”) has built an inkjet printer that uses an Arduino and the mechanics of a discarded 3D printer to slowly generate black and white images. The hacked together assembly mounts the Uno, associated electronics, and an HP 6602 cartridge onto a piece of hardboard, which […]
Have you ever looked up at your ceiling and wondered how to make it a bit more interesting? Well, creator Centas has and decided to bring a piece of the galaxy into his room using a fiber optic star display. The installation is powered by an Arduino Mega, and features approximately 1,200 points of light along […]
Er13k was inspired to create an Arduino music box to go along with his girlfriend’s giant stuffed dog Tobias. This eventually morphed into something that not only plays songs on its own speaker, but also lights up a 3D-printed keyboard with LEDs. Perhaps its coolest feature, though, is that it includes an RCA output jack […]
In the Harry Potter series, professor Alastor Moody is known for wearing a very distinct prosthetic eyeball that moves in a “mad” manner. When Instructables member replayreb’s son decided to go to a costume party dressed as this character, he took the opportunity to make a replica for him. The device is controlled by an […]
Andrei Erdei recently designed an amazing Arduino-powered light board, which glows and plays sounds based on the movement of a magnetic marble. First, the magnet is placed on top and then made to roll by lifting the device’s sides. An array of 36 reed switches underneath the smoked plexiglass surface detect the marble’s position, illuminating 36 […]
After mechanical engineer “Kuchbert” saw the hip-hop/electropunk band Deichkind perform — wearing LED-embedded tetrahedral hats, no less — he decided he wanted his own glowing geometric headpiece. Now, nearly 10 years and several shows later, he finally got his wish by constructing one out of acrylic triangles with 156 WS2812Bs. An Arduino Nano controls the […]
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