community news
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ESP32-P4 Powers a DIY IP KVM for Remote PC Control Remote access devices like IP KVMs are usually built around powerful single-board computers such as the Raspberry Pi. But what if the same job could be handled by a microcontroller instead? That's what creator Jonathan Rowny set out to explore by building a functional IP KVM using Espressif's ESP32-P4. The project aimed to remotely stream a computer's display… |
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Meet Saras 2.0, the Claude-Driven Robot What happens when you give Claude a real robot body and let it control everything.This article highlights Saras 2.0, an AI based robot, built by Tech with Anant. It’s an upgraded version of his previous Saras 1.0 He designed the Saras 2.0 hardware fully in Autodesk Fusion. Powered by a pi4, the bumper holds the TOF sensor and camera and front panel holds a 7inch hdmi… |
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Futuristic Custom Gearboxes Inside a 3D Printed Robotic Forearm The hobbyist Mishin Machine has developed the ROAR forearm, a compact, high-performance 3D-printed robotic forearm that integrates three fully custom-designed gearboxes. This advanced build features a smooth Wave Drive V2 with rolling elements for improved contact surface and reduced wear, a powerful Three-Ring Cycloidal Drive for high reduction ratios in a slim… |
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This DIY Pick-and-Place Machine Delivers 10-Micron Precision Assembling tiny SMD components by hand is one of the most challenging parts of PCB manufacturing. Some components, especially 0201-sized parts, are so small that accurately placing them with tweezers can quickly become a tedious and error-prone task. That's why factories rely on highly automated pick-and-place machines that can cost thousands, or even millions, of… |
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Two-Way Holographic Display with Wemos D1 Mini This display can show two different images at the same time - no VR headsets, no software tricks, just pure optics. This is a two-way holographic display made by Julius Makes. The whole idea is that two players, sitting opposite to each other, should see the mystery instructions meant for the other person. Plus, they should be able to see their faces through the… |
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FIFA World Cup 2026’s Trionda Ball Has a 500Hz Sensor Inside With the 2026 FIFA World Cup now under way across Canada, Mexico and the USA, adidas' official match ball, Trionda, is in use at all 104 matches of the tournament. Beyond the colour scheme tied to the three host nations, the ball's more interesting story for engineers is the sensor package built into it. Trionda uses the latest version of adidas' Connected Ball Technology, built around… |
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Built a Portable AR Sandbox Using an ESP32 and a ToF Sensor If you've ever visited a science museum, an exhibition, or stumbled across a viral video online, you've probably seen those interactive sandboxes where creating a mountain with your hand instantly turns it into a colorful topographical map. Independent creator UncleStem has now recreated that experience in a much more compact and affordable form. By combining a $20… |
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Thumb-Sized Smart Button Packs Years of Battery Life with Matter Connectivity A tiny smart button measuring just 32 millimeters in diameter is demonstrating how modern IoT hardware can deliver powerful functionality in a miniature package. At its core is the Nordic nRF54L15 chipset, a next-generation wireless microcontroller designed for ultra-low-power embedded applications. The board supports Bluetooth Low Energy and Matter over Thread,… |
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Google's Gemma 4 E2B Runs Locally on Robot Duck Google For Developers recently came up with a practical demonstration of their multimodal AI model, Gemma 4 E2B, running entirely on-device on two robotic ducks built by independent maker Antoine Pirrone. The demo is called “Gemma Playground: Robot Duck” as the goal of it is to exhibit the capabilities of Gemma with the help of the robot ducks as a demonstration… |
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The Future of Screens Might Be a Contact Lens What if the next generation of wearable technology doesn't sit in your pocket or on your face, but directly on your eye? Dubai-based startup XPANCEO has already developed over 28 working prototypes of smart contact lens and recently showcased five of them at the MWC 2026 event. These futuristic lenses integrate advanced micro-displays, holographic optics, highly sensitive biosensors, and built… |
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Open-Source MoCap Camera Rivals Hollywood Tech The YouTube creator Matt has developed an impressive open-source motion capture (MoCap) camera system that delivers professional-level 3D tracking at a much lower cost than existing commercial solutions. The project uses 16 custom-built infrared cameras that work together to capture and process more than four billion pixels every second. These cameras can track… |
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Inside a DIY EMF Generator Built from 12000 Turns of Wire and a Marx Generator A homemade EMF generator built around a Marx generator and custom transformer offers an interesting look at the science behind electromagnetic interference. A maker on YouTube known as Skill Make has showcased an experimental high-voltage electromagnetic pulse generator built using a combination of a custom transformer, a Marx generator, and a directional antenna coil. The project explores how… |
