Keychain

Wi-Fi HaLow successfully bridges the gap between traditional Wi-Fi and LoRaWAN by combining long range, low power consumption, and enough bandwidth for real-time video streaming. It is a promising technology for the next generation of IoT and smart surveillance systems.

This is a neckband watch that can see the time, see pictures, show Text Moving, show Gif animations. Style cyberpunk

Show your Plex/Emby/Jellyfin "now playing" card on a cheap ESP32 touch panel (ESPHome + a tiny screenshot sidecar)

This project demonstrates that practical object recognition does not always require complex machine learning frameworks. Using only the built-in camera, display, and processing power of the UNIHIKER K10, it is possible to create a simple, fast, and effective object recognition system that can be trained directly by the user.

Pocket Admin Toolkit v2 turns the Elecrow 2.8-inch ESP32 CrowPanel into a compact touchscreen toolkit for Linux, networking, DevOps and everyday system administration. The first version proved that a small ESP32 display could provide fast answers without opening a laptop or searching through online documentation. Version 2 expands the project into eight practical tools: • CIDR and IPv4 subnet calculator • VLSM network planner • World clock and time-zone converter • Cron generator and parser • Storage and backup capacity planner • Visual Linux chmod calculator • Wi-Fi and BLE wireless scanner • HTTP status code and TCP/UDP port reference Most tools work completely offline. No cloud service, backend, account, API key or Wi-Fi password is required. Wi-Fi and BLE remain disabled until the Wireless Scanner is opened, and the toolkit scans nearby signals without connecting to a network. Fast answers, local calculations and useful admin tools — all running directly on a 320 × 240 ESP32 to

This is a DIY project, to balance a ball on a plate, characterized by innovative solutions. The project is fully opens source, and well documented. The project has been featured by: Makerprojectlab [https://www.makerprojectlab.com/patterns-in-the-pixels-maker-update/]. Hackster [https://www.hackster.io/news/this-balance-bot-uses-a-mirror-to-see-the-big-picture-c26c68e3fdbe].

In this project, I convert a classic PCL86 single-ended tube amplifier design to operate with the less common PCL82 vacuum tube. Powered entirely from compact DC-DC converters, this amplifier delivers maximum 2W of warm tube sound with absolutely no audible hum or switching noise.

In this project I demonstrate an extremely simple Direct Conversion SDR Receiver based on the Microchip MCP2036 IC.

I turned an ESP32 Bitcoin miner into a practical Pocket Admin Toolkit. After running for more than 100 days, my original Bitcoin mining experiment became something much more useful: a fully offline touchscreen toolkit for Linux, networking, and system administration. Everything runs directly on the ESP32. No Wi-Fi. No cloud. No accounts. No API keys. Just fast, offline tools that are always available. Features • CIDR & subnet calculator • Visual Linux chmod calculator • HTTP status code reference • Common network ports reference This is only version 1, and I already have ideas for many more features.

Learn how to configure two HC-05 Bluetooth modules as a Master-Slave pair and establish reliable wireless communication between two Arduino Uno boards. In this project, the Master Arduino remotely controls the direction and speed of a 12V DC motor connected to the Slave Arduino.

This Elecrow Starter Kit saves time, eliminates wiring problems, and makes learning electronics both simple and enjoyable.

This project is a compact embedded controller designed for an automatic touchless soap dispenser. The PCB is built around the nRF52840, providing Bluetooth Low Energy (BLE) connectivity for remote control, configuration, firmware updates, and communication with external BLE devices.

Today I am going to show you how I made a "Digital Roulette Wheel" by combining ESP32-C3 with the classic CD4017 CMOS decade counters

The generator allows you to create STL files for 3D printing a fully customizable electronic enclosure. By changing the parameters in the source file, you can adjust the enclosure’s properties and adapt it to the specific requirements of your DIY project. The parametric generator is based on an OpenSCAD file in which you can modify parameters such as the enclosure dimensions, the position of the feet, the size and placement of ventilation openings, wall thickness, corner radius, and many other features. As the final output, the generator produces separate STL files for the top and bottom parts of the enclosure, ready for 3D printing.