After a major water leak flooded my home, I realized alerts alone weren’t sufficient—I needed automatic shutoff. This project combines a hacked Gröhe Guard system, an Arduino Nano, an ESP32, and the ...

When we first saw [DiPDoT’s] homebrew computer, we thought it was an Altair 8800. But, no. While it has a very familiar front panel, the working parts are all based on relays. While it ...

Meshtastic, an open-source firmware for long-range mesh networking, offers an elegant solution. Using LoRa radios allows ...

So Halloween finally arrived, we hope you had enough time to pull off your frightening feats in the way you had originally envisioned. Now it’s time again to look to the future and start planning this ...

Abstract: This article is concerned with a recursive remote estimation problem for a class of nonlinear complex networks subject to the token bucket protocol (TBP) and amplify-and-forward (AF) relays.

"TeSys LRD remote control device for thermal overload relays LRD15../LR2D/LR3D15../LR3D35../LR3D33../LRD33../LRD43../LR3D43.." "It provides a 24V AC/DC control ...

This code saves you 20% of flash memory when working with stm32 which has like 64kb with lcd having I2C adapter. When you use the normal LiquidCrystal_I2C Library consumes 30% of flash memory while ...