In this Instructables tutorial, I will teach you how to make a simple 8 key piano with your Arduino. Supplies: Arduino Board Breadboard 10MΩ Resistor*8 Arduino mini box speaker Wires/Jumpers Tape Cardboard Tinfoil (optional) Hot glue gun Step 1: Gather Supplies Here is what you’ll need: Arduino Board Breadboard 10MΩ Resistor*8 (1MΩ Resistors work too) […]
Want to display a PNG file on a display attached to an Arduino or other microcontroller board? You’ll want to look at [Larry Bank]’s PNGdec, the Arduino-friendly PNG decoder library which makes it much easier to work with PNG files on your chosen microcontroller. The PNG image format supports useful features like lossless compression, and was generally
PNG IMAGE DECODING LIBRARY DOES IT WITH MINIMAL RAM Continue Reading
Machine learning is an incredible tool for conservation research, especially for scenarios like long term observation, and sifting through massive amounts of data. While the average Hackaday reader might not be able to take part in data gathering in an isolated wilderness somewhere, we are all surrounded by bird life. Using an Arduino Nano 33
RECOGNISING BIRD SOUNDS WITH A MICROCONTROLLER Continue Reading
Sound recording and playback have come a long way in the last century or so, but it’s fair to say there’s still a lot of interesting stuff locked away on old recordings. Not having a way to play it back is partly to blame; finding an antique phonograph that plays old-timey cylinder recordings is pretty
PIEZO PICKUP MAKES WAX RECORDS EASY TO DIGITIZE Continue Reading
Hoping to reduce my late-night smartphone use, I got a vintage alarm clock for next to my bed. This beautiful mechanical flip clock has just one problem: a truly horrifying alarm sound. (Witness the first video above.) It’s no wonder what this clock isn’t being used anymore – it’s basically unusable as an alarm; it
Awful to Awesome: Replace a Mechanical Alarm Sound Continue Reading
Back in the early days of the musical synthesizer, some designers who wished for polyphony in their instruments would simply build multiple tone-generators for as many notes as they wished to play. [Kevin] took that same approach with his Arduino orchestra, and set about having it play the closing number from Star Wars: A New Hope. The
12-ARDUINO ORCHESTRA PLAYS STAR WARS FANFARE Continue Reading
The kit is available for ESP32 modules to offer developers cost-effective data transmission via sound waves. Chirp, the pioneers in data-over-sound technology today announced the launch of its new SDK for Arduino, providing developers with audio-based data transmission capabilities to enhance projects created on the platform. Now supporting ESP32 development boards, Chirp’s SDK for Arduino is available to use
CHIRP LAUNCHES SDK TO DELIVER DATA-OVER-SOUND FOR ESP32 ARDUINO PROJECTS Continue Reading
This instructable explains how to pinpoint the location of an object using an Arduino, two ultrasonic sensors, and Heron’s formula for triangles. There are no moving parts. Heron’s formula allows you to calculate the area of any triangle for which all sides are known. Once you know the area of a triangle, you are then
Retired scientist [Mark Howe] spent the last couple months making an animatronic movie featuring his LEGO lunar lander in a video recreation of the Apollo 11 moon landing (also embedded below). [Mark] is not only the producer, but serves as the technical director, set designer, and cameraman as well. He designed and 3D-printed a custom special effects
LEGO LUNAR LANDER ANIMATRONIC MOVIE RELEASED Continue Reading
Remember the “smart” LED candle from a few months ago? Well, the idea was nice, but the overall execution lacked some oomph. Technologically and aesthetically speaking there was a lot to improve. First off, as an artist, I wanted the container for the candle to look amazing. Or at least better than the old cardboard box I
*IMPROVED* Smart LED Candle: Reactive to Sound and Aesthetically Pleasing Continue Reading
