microcontroller
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Mind Link: A DIY Brain-Computer Interface Built from Scratch Creator, AstroSam, built a functional prototype of a brain-computer interface (BCI), called Mind Link. It reads brain signals from a simulated 32-electrode array and sends them to a computer to visualize right away and possibly process later. The build combines custom PCBs, firmware, and magnetic connectors. The project is open-source and documented from scratch. The system consists of… |
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Renesas Launches RA2T1 MCUs for Single-Motor Applications Renesas Electronics Corporation has launched a new group of microcontrollers (MCUs) named RA2T1, tailored for systems that control a single motor. The group is based on the Arm Cortex-M23 processor, running at 64 MHz, and is meant for devices like fans, power tools, vacuum cleaners, refrigerators, printers, and hair dryers. They have a 3-channel sample and hold (S&H) function to measure… |
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Zoborg: Cyborg Darkling Beetles with Elytra and Pronotum Implants Researchers, with support from The University of Queensland and other institutions, developed Zoborg, a living darkling beetle that was turned into a cyborg using an electronic wireless backpack mounted on its body. The backpack is tiny (15.8 mm x 5.8 mm, weighing 160 mg) and includes an ATtiny85V microcontroller and an infrared receiver. Electrodes are implanted in the elytra (hard covers on… |
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This Transformer Robot Was Built to Be Ridden, Not Just Looked At A maker built a real-life transformer robot that switches from a car to a robot, just like in the movies. The build is designed for someone to ride, much like a toy car. The robot uses Gimson Robotics 99.5:1 gearhead motors with additional 3D-printed two-stage gear reductions. Six motor assemblies power all leg joints. It uses AS5047 magnetic encoders to track joint positions, allowing… |
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RFID Based Attendance System Using Arduino - Complete Project Guide An RFID-based attendance system transforms the tedious task of manual attendance tracking into an automated, error-free process. What makes this project particularly exciting is how a few inexpensive components can replace expensive commercial systems, giving you complete control over features while learning valuable skills in embedded programming and circuit design… |
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DIY Piano Doorbell That Replaces the Classic Chime with Musical Notes A simple piano doorbell that replaces the usual chime with real piano notes was demonstrated in a recent project published by Arpan Mondal. The system combines microcontroller-based control with audio playback to create an interactive doorbell. At its core is an ESP32-S3, which takes inputs from 5 keys styled like a tiny piano. Each key is built using micro limit switches and connected… |
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BEL and Tata Electronics Sign MoU to Propel India's Indigenous Semiconductor Ecosystem Bharat Electronics Ltd(BEL), a Navratna defense public sector enterprise that deals with cutting-edge electronics systems, and Tata Electronics, a Tata Group greenfield venture, signed a Memorandum of Understanding (MoU) on June 5, 2025, at Bombay House, Mumbai. This formalizes their joint efforts to develop indigenous electronics and semiconductor solutions. The primary aim of the… |
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Indian Startup Reflex Drive Adopts Infineon Electronics for High-Efficiency UAV Systems Reflex Drive, a deep-tech startup, has used key semiconductor components from Infineon Technologies AG. They’ve integrated Infineon's OptiMOS 80 V and 100 V power MOSFETs and the MOTIX IMD701 integrated motor control solution. This benefits their electric speed controllers (ESCs) through better thermal performance and high power density. The ESCs are compact, with a footprint of 120 cm³ and a… |
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DigiKey Introduces Digital Technology Portals to Drive Education and Innovation in APAC Region THIEF RIVER FALLS, Minnesota, USA — DigiKey, a leading global commerce distributor offering the largest selection of technical components and automation products in stock for immediate shipment, introduces dedicated Application & Technology Portals in the APAC region. The portals are localized online resources designed to empower engineers and innovators with technology-specific resources… |
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ESP32 DIY All-in-One Universal Remote The Stock Pot, A local hobbyist has built a smart remote control as a personal solution to a worn-out TV remote. Instead of replacing parts, he decided to create a custom remote from the ground up, and made a full tutorial so others can follow along too. At the core of the project is an ESP32, a small, budget-friendly microcontroller that's really popular for smart home builds. With it… |
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DIY Automatic Desk Dustbin with Iris Lid A DIY The Wrench maker has built a smart desk dustbin with an automatic iris-style lid, adding both functionality and a unique touch to a workspace. After some adjustments, the final design was printed successfully using a 3D printer using a design made in Fusion 360. Different filament colors were used to make the dustbin visually appealing. The smart feature of the dustbin is… |
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How to Build a Desktop Weather Station Using ESP32 and E-ink Display In today’s fast-paced world, many of us spend long hours indoors—whether working from home, studying, or just managing our daily routines. Natural cues like changing skies, outdoor temperatures, or the feel of humidity are often lost behind four walls and closed windows. This can make it difficult to stay aware of what’s happening outside, especially when our focus… |
