This post will give you an Arduino Pixel LED Controller build idea. The inspiration for this post was an old Pixel LED kit I found in my junk box (see the lead image). The locally made kit includes a ...

This is a simple 0 to 9 counter circuit constructed using Arduino! Here, a common cathode 7-segment LED display is connected to Arduino for displaying the digits. The code (Arduino sketch) allows push ...

1 string of 50 addressable RGB LED lights 1 Arduino 1 micro-USB cable 1 9-volt battery holder with a switch 1 9-volt battery 1 set of three-pin JST SM Plug and Receptacle Cable Set Solder ...

You could put the Arduino in deep sleep, if you wanted to and that LED will still blink. With a little work, you could probably adapt this idea to any number of circuits out of the 555 playbook ...

Arduino has launched its next generation of UNO boards, introducing a 32-bit Renesas microcontroller and Espressif ESP32-S3 module, one-click cloud connectivity and plenty of I/O plus a 12×8 red LED ...

One user restored and rebuilt his old 386 CPU with new hardware. This includes an Arduino-powered LED display, an SSD, and more.

To solve the problem without sourcing a new switch, [Jean-Noel] built his own Arduino based Dahlander switch. This consists of three relays that select the wiring configuration for each speed mode.