Redefining classic steam design with modern precision — the Twin Cylinder Paddle Steamer Engine is a tribute to engineering artistry in SOLIDWORKS.

Lightweight ESP32-based IoT module for remote data logging enabling the collection and upload of 3D printing statistic values to a cloud server, as well as displaying them locally on a dedicated display. The project also involves extending the Marlin project by adding a custom G-code command at the firmware level.

The DIY Heating Booster helps you get more out of your existing radiator – without modifying your heating system. An ESP32 controls 12V fans mounted underneath the radiator, automatically turning them on when the radiator gets warm to efficiently distribute heat throughout the room. The control logic works standalone with a local temperature sensor, but can also be fully integrated into Home Assistant. Perfect for cold spots, smart upgrades, and energy-saving DIY solutions.

The OBP40 is an open, cost-effective marine multifunction display, ideal for DIY boat projects and sensor visualization. It's based on the CrowPanel 4.2 with an e-paper display and an ESP32-S3, 8 MB Flash, and 8 MB PSRAM. The system displays numeric and graphical pages with user-selectable values ​​and trends and is operated via buttons. Power is supplied via 5V USB-C. A LiPo battery pack with deep discharge protection and a magnetic dock enables mobile operation. Data communication includes NMEA2000, NMEA0183, 2.4 GHz Wi-Fi, and I2C/1Wire via an expansion port – perfect for integration with onboard electronics and sensors. The open-source firmware is customizable and can be deployed via Wi-Fi or USB. Comprehensive documentation, Telegram support, and wiring diagrams facilitate replication. This makes the OBP40 a flexible, expandable display module for boat data visualization and DIY marine electronics.

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.

A fully engineered obstacle-avoidance robotic car featuring a complete SolidWorks design, 6-sensor perception, and Arduino-based control—built as a foundation for future autonomous navigation modes.

Reverse enginnering of 6 layers PCB

Easy-to-build VFO (Variable Frequency Oscillator) that features a clear, touch-enabled circular display with retro-style virtual scales.

Build your own external PC Performance Monitor using the LilyGO T-Display AMOLED ESP32, a custom VB.NET desktop app, and serial communication. This stylish embedded system continuously displays system stats such as CPU/GPU usage, temperatures, RAM, battery, and more — making your workspace futuristic and informative!