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.

Project #28 – Sensors – MQ-135 Gas Sensor – Mk22

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.

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.

"Commercial motion simulators cost a fortune. Our project is a compact, affordable, and DIY 6DOF motion platform that brings professional-grade immersion to sim racing and flight. I provide the complete guide—from the Arduino code to the mechanical design—so you can build it yourself without the massive price tag."

This is a 3D-printed, self-watering planter designed specifically for busy students and professionals. It solves the number one problem of indoor plant care—underwatering from neglect and overwatering from panic—using a passive wicking system to give plants consistent moisture. It's a low-maintenance, customizable, and 3D-printable solution to help anyone keep their plants alive and thriving, even in a busy environment.

An educational CAD and manufacturing project developed by high school students

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

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.

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

Land safe in sonic speed.

Build a wireless, portable smart-home control tablet

Project #28 – Sensors – MAX30102 PPG Sensor – Mk21