community news
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Smallest UPI Payment Receiver with ESP32-S3 and AMOLED Display The maker techiesms has successfully built a compact UPI payment receiver using Makerfabs' 1.8-inch AMOLED display module. The module comes with an ESP32 S3 (R8) on its back, which acts as its brain. This project integrates real-time transaction updates with a compact and visually appealing display, making it a practical solution for digital payments. The ESP32-S3 has a dual-core… |
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ESP32-S3 AI Camera for Voice-Controlled Automation and Remote Monitoring An AI camera that can recognize faces, respond to voice commands, and even see in the dark, ESP32-S3 camera does it all. It's an AI camera module designed for real-time AI-powered video processing, voice interaction, and IoT applications. This camera can serve as a surveillance camera at the door bell or can be used as a baby monitor device. At its core, the ESP32-S3 AI Camera is… |
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Linux-Based Drum Kit Business Card An experienced embedded systems developer Sergey Antonovich has developed a business card that integrates a Linux operating system with a functional drum kit interface. The design is based on an F1C100s system-on-chip running Linux and incorporates touch-sensitive pads using the TTP229 sensor. A USB Type-C connector supplies power while a standard headphone jack… |
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DIY Open-Source Wall Plotter for High-Precision Drawings Under $100 Mural is a DIY wall-drawing machine that uses markers to create wall designs. The creator wanted a cheaper wall plotter that could turn walls into canvases. So, he built Mural as an open-source project that costs less than $100 and is easy for anyone to make and use. Mural runs on an ESP32 microcontroller with Nema 17 stepper motors, a servo motor for pen movement, and a USB-C power delivery… |
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Legion Mark I - A WiFi Controlled Hybrid Robot A YouTuber has shared his latest project, Legion Mark I, a robot that can both crawl like an insect and drive like a car. It’s powered by an Arduino Nano for movement control and an ESP32-CAM for live video streaming. The robot moves using 12 servo motors for crawling and four DC-geared motors for wheeled movement, all managed by a 16-channel PWM servo driver and an… |
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This One-Legged Robot Jumps Like a Squirrel Squirrels are incredible at jumping and balancing, effortlessly landing on the narrowest of branches. Squirrel’s that level of control is pretty impressive, and researchers wanted to see if they could teach a robot to do the same. That's how researchers came up with Salto. Salto is a small, one-legged robot developed by a team of biologists and engineers at UC Berkeley. This robot… |
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DIY High-Voltage Plasma Portal using ZVS Circuit A YouTuber has shared his Plasma Portal project, a high-voltage electrical engineering demonstration that combines a Zero Voltage Switching (ZVS) driver circuit, a custom flyback transformer, and a 3D-printed frame to generate plasma arcs. The ZVS circuit, built using IRFP260 MOSFETs, resistors, diodes, and capacitors, efficiently oscillates current through the… |
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Isaac GR00T N1: World’s First Open Humanoid Robot Foundation Model From NVIDIA NVIDIA has unveiled Isaac GR00T N1, the world’s first open humanoid robot foundation model, designed to bring advanced reasoning and general skills to robots. This fully customisable model aims to accelerate the development of humanoid robots capable of performing various tasks in industries facing labour shortages. Alongside GR00T N1, NVIDIA introduced new simulation frameworks and synthetic… |
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OpenMV AE3 and N6 - Python Programmable AI Cameras for Embedded Vision OpenMV has launched a new Kickstarter campaign introducing the OpenMV N6 and AE3, two low-power AI-enabled cameras designed to bring machine vision to a wider range of applications. Known for its previous OpenMV Cam H7, a compact, open-source MicroPython-powered vision system from 2019, the company continues to focus on making embedded vision accessible. The new models enhance this legacy with… |
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ESP FLY - The Smallest ESP32 Powered Drone The ESP-FLY is a palm-sized drone powered by the XIAO ESP32S3 microcontroller, combining compact design with impressive performance. Measuring just 50 mm, its 3D-printed frame weighs only 4 grams, while a PVC alternative is also available. The drone’s custom 4-layer PCB integrates an MPU-6050 motion sensor, a 4-channel motor driver, and LEDs, all optimized for… |
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An open-source Pedometer based on ESP32 This DIY step counter is built around the Waveshare ESP32-S3 1.8" AMOLED Touch Display Board, designed for precise step tracking without the drawbacks of accidental counts. Unlike smartwatches, which often record unintended movements, this device focuses on purposeful walking sessions, allowing users to calibrate step sensitivity, adjust step length for accurate… |
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Laser Microphone - Capturing Sound Through Reflected Light A YouTuber recently showcased a homemade laser microphone, a surveillance device capable of picking up sound from a distance by analyzing how a window vibrates. Originally used in espionage, this technology converts tiny light fluctuations into audio signals, demonstrating how sound waves can be captured without placing a microphone inside a room. … |
