I bought a Ninja Block about three years ago, which is essentially a Arduino + Node.js server thing that runs on the device to send the data from your devices (in my case, just two 433Mhz ...

This build is about using the temperature sensor in your clock. The ATMega328p, the chip at the heart of all your Arduino Uno clones, has within it a watchdog timer that clicks over at a rate of ...

Using motion detectors and an Ardunio you can add a little extra wow to your Halloween displays this year. This article covers the circuits and the code to make that happen.