The Vision-Guided Sorting Platform is a functional small-scale prototype designed to demonstrate the principles of industrial automation through a "Proof of Concept" (PoC) model. This project integrates embedded graphics, computer vision, and motion control into a synchronized system, using a custom-built structure to prove the efficiency of the control logic. Controlled through a 7-inch CrowPanel HMI, the platform simulates an automated sorting line. The system is programmed to identify and categorize three distinct geometric shapes: Squares, Triangles, and Circles, showcasing how sophisticated software integration can drive mechanical execution even in a rapid-prototyping environment.

Experimenting with different UV wavelengths and camera types to develop a feature-rich industrial plastic surface anomaly detection mechanism with edge AI.

Build a wireless, portable smart-home control tablet

Robotic arm, 6-DOF manipulator, additive manufacturing, 3D printing, parametric design, educational robotics

This project is a rugged, 3D-printable smartwatch enclosure designed specifically for wearable IoT devices. Unlike consumer smartwatches, it focuses on durability, modularity, and rapid prototyping for engineers and makers. The enclosure features a two-part snap-fit design, supports standard watch straps, and can be easily customized to fit different PCBs, displays, and batteries.

In this project, we’ll turn the Elecrow 7" ESP32-S3 HMI display into a complete UPI payment interface for a vending-machine-style system. You’ll learn how to design the UI in SquareLine Studio, generate a dynamic UPI QR code based on selected items, and print a payment receipt using a thermal printer — all driven by a single ESP32-S3 board.

ModuFrame-5 is a fully 3D-printed modular quadcopter frame designed specifically for 5-inch FPV drones. It combines the accessibility of desktop FDM printing with the durability and repairability needed by drone enthusiasts and professionals alike. Its parametric design allows easy customization and rapid iteration, while modular arms ensure quick repairs after crashes, reducing downtime and costs. Crafted to support common FPV components, ModuFrame-5 offers a low-cost, lightweight, and versatile alternative to traditional carbon fiber frames — making drone building and flying more accessible than ever.

A complete mechanical CAD and GAD design of a Maintenance & Lube Truck engineered as a mobile workshop for safe, efficient on-site lubrication and maintenance of heavy industrial machinery.

Add spoken feedback to any Arduino project by sending text and sensor values to a TinyTTS module over UART — no cloud, no audio files.

A cheap, fully 3D-printed, Raspberry Pi Zero 2 W–driven robot dog with 14 DOF that actually walks, trots, and looks around on a wide-angle camera, built entirely from off-the-shelf parts and a lot of trial, error and swearing.

Practical Guide to Reyax RYLR998 LoRa Modules: Real-World Performance, Bidirectional Communication with Acknowledgment, and Arduino IDE Firmware

This project combines the modern capabilities of the CrowPanel ESP32 Display module with a true retro radio, focusing on the manual, drawn-scale station selection.

Add offline voice to a digital multimeter: Arduino + TinyTTS speaks readings instantly, so you can keep your eyes on the probes.

Automatische Bewässerungssteuerung für bis zu 4 Pflanzen mit ESP8266 und Home Assistant Integration. ✅ 4x Kapazitive Bodenfeuchte-Sensoren (korrosionsbeständig) ✅ 4x Pumpen mit individueller Steuerung ✅ Wassertank-Füllstandsüberwachung mit Schwimmer ✅ 2x Hardware-Buttons für Standalone-Betrieb Betriebsmodi: • AUTO: Kontinuierliche Überwachung, automatisches Bewässern bei Bedarf • MANUELL: Pumpensteuerung über Schalter • NOTAUS: Automatisch bei leerem Tank Sicherheit: • Interlock - nur 1 Pumpe gleichzeitig aktiv • Timeout-Schutz gegen Überflutung • Keine Pumpenaktivierung ohne Wasser Alle Parameter über Home Assistant einstellbar (Schwellenwerte, Bewässerungsdauer, Intervalle). Komplette Logik läuft auf dem ESP - keine HA-Automationen erforderlich. Hardware: ESP-01, MCP23017, ADS1115, MOSFETs PCB: 2-Layer, 97x76mm, komplett Open Source

In this tutorial, I am going to talk about the PC817 Optocoupler which is one of the most common and inexpensive 4-pin optocouplers.