Relive the fun of early computer game music with an authentic 8-bit chiptune synthesizer, which you can control over MIDI from the comfort of any modern DAW software. This simple circuit uses an Arduino to drive an AY-3-8910 programmable sound generator chip (or one of its many clones) to recreate that 1980’s sound. Unlike the many designs […]
Arduino MIDI Chiptune Synthesizer Continue Reading
My wife and I recently moved to a new apartment with our cat, Nymeria. This new apartment came with an extra houseguest – a small bird just outside our door. This bird happily chirps all day, which torments our cat who can’t find the source of the chirping. I decided to make a chirping toy
Modular Chirping Nest Toy for Cats Continue Reading
My hobby and passion is to realize physics projects. One of my last work is about ultrasonic sonography. As always I tried to make it as simple as possible with parts you can get on ebay or aliexpress. So let’s take a look how far I can go with my simple items… I was inspired
Body-ultrasound Sonography With Arduino Continue Reading
This project is to create an Infrared Remote Control to control the Original Cybot received with the magazine Ultimate Real Robots, started back in 2001. Reason for making the remote:(a little history) Before the issue of the parts for the IR handset, Cybot was put into different modes by selecting DIP Switches. (There was no
Tim’s Cybot Arduino NANO Remote Control Continue Reading
In this instructable, I will show you how to build a trampoline that changes colors whenever you jump on it! Step 1: The Things You Need Materials: 3 rolls of wire, different colors, the thinner the better Solder, the thinner the better – I had thick solder wires in the beginning, and it melted so
Jump Sensitive Neopixel Trampoline Continue Reading
Although you can buy analog tide clocks that have a single hand indicating whether the tide is high or low or somewhere in between, what I wanted was something that would tell me at what time low tide will be. I wanted something I could glance at quickly without having to turn it on, or push any
Tide and Weather Clock Continue Reading
Our old math teacher famously said, “You have to take what you know and use it find what you don’t know.” The same holds true for a lot of microcontroller designs including [rgco’s] clever metal detector that uses very little other than an Arduino. The principle of operation is simple. An Arduino can measure time, a coil
ARDUINO AND WIRE DETECTS METAL Continue Reading
A synthesizer without transistors could almost be the basis of a trick question, surely without transistors it must be using a vacuum tube or similar. Not [Dr. Cockroach]’s synth though, instead of transistors it uses coupled pairs of LEDs and light-dependent resistors as its active components. Its oscillator circuit comes courtesy of [Patrick Flett], and uses
A TRANSISTOR-LESS SOUND SYNTHESIZER Continue Reading
A few weeks ago I made a freeform Arduinoflake. Lot of you loved it. But its magic is not only being freeform but also in the pattern of the LEDs. So I decided to create a PCB version which would be really easy and cheap to make for everyone! It’s the same beauty in a different
Arduinoflake – PCB Version Continue Reading
The spark plug was a key invention in the history of the internal combustion engine, allowing combustion to be easily controlled and engines to rev faster than messy earlier designs. Mid-century cars tended to rely on points ignition with a distributor and coil, however more modern designs place a coil on top of each individual
COIL ON PLUG IGNITION FOR TINY ENGINES Continue Reading
