This module from Elecrow has endless possibilities for making DIY projects in a relatively simple way, without the need for soldering or other hardware work.

This tutorial walks you through a tiny, privacy-first web app that reads only the advertised CO2 level from a nearby HibouAir sensor using a BleuIO USB BLE dongle. Renders it as a color bar with a simple “High CO2” warning when your threshold is crossed.

Here is a quick project for an electronic Halloween pumpkin.

This project successfully demonstrates that the Unihiker K10 board, despite being AI-oriented, can effectively utilize standard Arduino libraries for creating traditional electronics projects.

Build a DIY USW indoor positioning system Using ESP32 with the Qorvo DWM3000. This tutorial walks you through hardware, firmware, and Python visualization to create accurate tracking for robotics and IoT projects.

Do you need a last-minute Halloween decoration to scare your friends and trick-or-treaters? Try building a scream box that lets out blood-curdling screams when it's opened!

For social distant trick or treating, we thought we’d make a BLE controlled servo claw using the Circuit Playground Bluefruit.

This DIY HF antenna preselector drastically improves the listening experience on your shortwave radio, especially with a long wire antenna.

In this Visuino project, you will learn how to use the ESP32-C3 LCD kit to control an RGB LED’s brightness with a rotary encoder. Turning the encoder adjusts the brightness in steps from 0 to 1 with 0.1 increments, and the current brightness level is shown directly on the LCD display. Pressing the encoder’s button instantly sets a random LED color, making the project both fun and interactive. This tutorial is perfect for learning how to: Configure and Use the rotary encoder on ESP32-C3 Display live brightness values on the LCD screen Randomize LED colors with a simple button press Use Visuino Visual Programming to quickly design interactive IoT projects Bring your ESP32-C3 LCD kit to life with this engaging RGB LED brightness controller!

Create a secure Arduino RFID Door Lock using Visual Programming in Visuino! Learn how to connect the MFRC522 RFID module, verify card IDs, and control a magnetic solenoid lock. When a valid RFID card is detected, the door unlocks and a green LED confirms access. Swipe again to lock the door. No coding needed — perfect for beginners and smart home security projects.

In this step-by-step tutorial, you’ll discover how to create sequences that control your actuator with precise timing (in milliseconds or even microseconds).

In this Visual Programming (Visuino) tutorial, we’ll use a High Brightness Lighting LED Module and a Rotary Encoder to control LED brightness and blinking modes.