"Where did my pet go?" If you have a pet, you've probably asked this question at least once. One moment they're playing ...

This tutorial shows us how to build our own functional DIY ESP32 metal detector from scratch using an affordable Wi-Fi enabled microcontroller, a handful of easily available electronic components, and ...

Short Message Service (SMS) has been around for decades, but it’s no longer just for personal chats. Today, businesses use texting to reach customers directly, promote products and share important ...

Do you remember AIM? It may suprize you to hear that AOL’s instant messanger was actually supported all the way up to 2017– ...

Compared to the Arduino Uno of old, modern microcontrollers are absolutely tiny — especially for the amount of processing power and I/O you get. But if you need something really small, like ...

This library is not maintained. It was my first 'popular' Open Source project, and brought MQTT to the Arduino platform just as both were gaining popularity. But times have changed, and I haven't ...

Arduino Uno R3 — Main microcontroller Ultrasonic Distance Sensor (HC-SR04) — Measures real-time water level LCD Display (I2C) — Displays current water level and status LEDs (Green / Yellow / Red) — ...