3D-Printed Frame for a 32×32 LED Matrix with Microphone
A modular 3D-printed frame turns a 32×32 LED matrix into an interactive wall or desk display, with support for an ESP-WROOM-32 and a MAX4466 or MAX9814 microphone for audio-reactive visuals.
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NIXIE STYLE LED DISPLAY
We pick up the fascinating Nixie tubes through displays based on packages of laser-engraved plexiglass plates, illuminated by Neopixel LEDs. For those born in the era of solid-state displays, be they LED, 7-segment, dot-matrix, or even liquid crystal, it is difficult to imagine how text and numbers were displayed before their advent; Well, those who…
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Glowing Air-Bubble Clock in Water
In this project we will see how a clock was created that displays the numbers through air bubbles inside tubes. The system consists of an ESP8266 which, through an I / O Expander MC2301, controls the solenoids that allow the creation of air bubbles inside 8 tubes. There are also a 0.91 “display and 8…
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Laser Video & Transparency Projector
Lasers have always intrigued me. I have two Helium-Neon Lasers (gas discharge, not solid state), one red the other green. I also have several laser pointers. I like lasers. Several years ago I came across an instructable that showed that you could take the narrow beam of a laser and spread it out into…
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“Arduboy FX SP” an Arduino based Game Boy
Arduboy is a fully open source portable video game console inspired by the classic Nintendo Game Boy. It is Arduino compatible, which makes it easy for users to modify and program new games. The original Arduboy only had enough storage to hold one game at a time, but the new Arduboy FX SP has room…
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AC Dimmer based on ESP8266
A dimmer is a device that allows you to modulate the alternating voltage to be given to a load. In this project, an ESP8266-based dimmer was created that can easily control AC loads such as motors and lights. It has the power to handle more than 1200 Watts and it is a project that can…
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Protect your eyes with Arduino
In the last year or so, due to Smart Working or Distance Learning, the hours spent in front of the computer have increased enormously. Luckily there is a window behind the monitor for taking those breaks that are supposed to prevent eye strain, but it’s so hard to remember and boring to do. https://www.youtube.com/watch?v=DRDmLbAgXZc Daniel…
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DIY Reflow Oven
If you design PCB with SMD components, you know how tedious and time-consuming the soldering operation using a classic or air soldering station can be. In industries the reflow ovens are used, that allow the welding with a certain temperature curve. In this project we see how to build one starting from an old kitchen…
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Stopwatch and Lap Timer with Arduino
Stopwatches are very useful in several applications and made by yourself using an Arduino, it is really more interesting! This project is really simple, easy to be assembled using few components and has an excellent accuracy and responsiveness including the following features: The stopwatch shows the time in minutes, seconds and tenth of seconds. The…
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OpenAstroTracker is a tracking and GoTo mount for DSLR astrophotography
Stars appear to stand still, but wait a few minutes and they won’t be in quite the same place. This means that if you want to take a long-exposure image of the sky with your DSLR you’ll have to either embrace the streaks, or use tracking hardware to compensate for this movement. Naturally, this specialized equipment…
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Corona-display
To keep a eye on the current Corona-Virus numbers I created this Programm wich displays the current stats to the Display. More info
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ESP32 LoRa Sensor Monitoring with Web Server (Long Range Communication)
In this project, you’ll build a sensor monitoring system using a TTGO LoRa32 SX1276 OLED board that sends temperature, humidity and pressure readings via LoRa radio to an ESP32 LoRa receiver. The receiver displays the latest sensor readings on a web server. More info
