community news
|
DIY Open-Source Oscilloscope Using a Raspberry Pi Pico and Scoppy A developer has built an open-source multifunctional oscilloscope by repurposing an old Android phone, a Raspberry Pi Pico, and a custom-made PCB that integrates all necessary components. The project leverages the Pico’s 0–3.3V ADC, which requires a robust analog front-end to accurately capture and condition signals. The custom PCB… |
|
Camera That Identifies Objects at Light Speed with Ultra-Low Power Use Researchers at Princeton University, led by Felix Heide, and Arka Majumdar from the University of Washington, developed a camera that doesn’t just capture images but also identify them instantly. Resulting in 100x faster computation and drastically reducing the energy consumption. Researchers created a new type of compact camera designed specifically for computer vision. Unlike… |
|
High-Speed Vector Display Using a Galvo Mirror A developer has built a laser galvo-based vector display featuring a custom signal conditioning and thermal management system that leverages a low-cost galvanometer for high-speed vector rendering. The design replaces traditional stepper motor-driven systems with a faster galvanometer that requires a ±15V drive signal. To achieve this, a custom op-amp-based amplifier… |
|
ESP32-S3-Based Thermal Camera Module Makes Infrared Imaging More Accessible Thermal imaging has long been an essential tool in various industries, from detecting heat leaks in buildings to diagnosing electrical faults and even enhancing night vision in security systems. These cameras work by capturing infrared radiation and converting it into a thermal image that represents temperature variations. However, commercial thermal imaging cameras are often expensive,… |
|
Arduino ML Magic Wand - Gesture Driven Smart Home Control Arduino has shared the ML Magic Wand project as a demonstration of its Nano Matter board, showcasing how machine learning can turn a simple wand-like device into a gesture-controlled smart home interface. This project enables users to execute specific gestures to control smart home applications, removing the need for traditional input methods. … |
|
Robot with Shape Shifting Design That Rolls, Moves, and Swims Across Any Terrain Robots usually struggle with challenging terrains and may need an extensive amount of sensors to navigate through tough environments. GOAT developed by researchers at EPFL’s CREATE Lab can change its shape, letting it drive, roll, and even swim while using less energy. Unlike most robots, which only calculate the shortest path, GOAT takes into account how and in what shape to move… |
|
Open-Source Touch-Free 3D Gesture Sensor A YouTuber has shared a gesture sensor that detects hand movements using electric field sensing. Unlike optical or infrared sensors, this method works through non-metallic surfaces, enhancing usability in enclosed environments. The sensor is based on Microchip’s MGC3130, a 3D gesture recognition controller that enables swipe gestures, circular motions, and depth… |
|
CARL: An Underwater Robot That Surfs Vortex Rings for Energy-Efficient Propulsion CARL is an autonomous underwater vehicle designed by researchers Peter Gunnarson and John O. Dabiri, this robot uses vortex rings, the spinning pockets of water, to move efficiently, reducing energy use by nearly 80%. Instead of constantly using its motors, CARL detects and rides these natural flows. CARL is equipped with an inertial measurement unit (IMU), a sensor that detects motion… |
|
Floaty: A Skydiver Robot That Flies in a Wind Tunnel While a skydriver falls from the sky or when a starship adjusts its position, they use air resistance to steer. This mechanism is used by this Floaty, a skydiver Robot made by Youtuber and researcher as a part of his PhD research which flies in a wind tunnel. Floaty has flaps that tilt and adjust the air dynamics while floating, like how a skydriver spreads or tucks their arms and legs… |
|
A DIY Curved Display Using ESP32 and TFT Screens We often see multi-monitor setups and curved screens in gaming and workstation setups, but not in embedded systems. What if we could bring this idea to microcontrollers? Charles Giguère from The Last Outpost Workshop did exactly that by creating a curved display using multiple small screens and ESP32 microcontrollers. The project started as an experiment to see if multiple ESP32… |
|
An Open-Source Self-Balancing Robot Powered by ESP32 A developer has built a self-balancing robot featuring a custom motor control system powered by an ESP32 microcontroller. The system integrates an H-Bridge circuit with MOSFETs for efficient motor operation, allowing precise bidirectional movement and smooth speed adjustments through Pulse Width… |
|
DIY Multi-Directional Rolling Cube Robot with Self-Righting Design Robots come in many forms, but some can move in all directions just by adjusting their shape. Joshua Stanley, a creator on YouTube, has previously created Fred, a rolling robot with a hexagonal folding design. The creator took a different path this time and made improvements, hence the birth of Marc, a new multi-directional rolling cube. The older version is much more complex, so he… |
