Bluetooth
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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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Espressif Shuts Down “Backdoor” Hysteria: ESP32 Debugging Feature Misrepresented as Security Threat A recent controversy has emerged around Espressif’s ESP32 microcontroller, following the discovery of undocumented Bluetooth HCI commands by security researchers at Tarlogic Security. Initially described as a "backdoor," this characterisation sparked significant debate and was later revised to acknowledge these commands as debugging features rather than a deliberate security vulnerability. The… |
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Interactive 3D Gaming in a 9x9x9 LED Matrix Cube with Arduino Nano A Tech Enthusiast has shared his new open-source project, the 9x9x9 LED Cube, which takes 3D visualization to the next level with its modular design and interactive features. This cube consists of 729 RGB LEDs (WS2811) arranged in nine detachable 3x3x9 towers, making assembly and maintenance easier. Each tower features integrated voltage regulators and handles… |
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Breaking Barriers: Espressif's ESP32-C5 Brings 5 GHz Wi-Fi to IoT Devices The ESP32 series of microcontrollers is one of the go-to choices for projects where performance and connectivity are a priority, all while providing a powerful processor and wireless capabilities at an affordable price. These MCUs quickly gained popularity due to their impressive set of features, built-in Wi-Fi and Bluetooth, and exceptional price-to-feature ratio. Compared to many traditional… |
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Whisker: An Open-Source Alternative to Flipper Zero for Hacking and Prototyping Since the launch of Flipper Zero, hacking and pen testing tools have gained a lot of attention. Devices like Flipper Zero, HackRF, M1 Multitool, HackBat, Bleshark, and RF-Clown have shown how accessible and useful these tools can be. Now, DevKitty is introducing Whisker, a cat-themed open-source hacking console. Whisker is designed to explore wireless networks, test USB security, and quickly… |
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M.A.T.T: An Electronic Magic Tool for Magicians M.A.T.T. (Most Advanced Thumb Tip) by Magic Dream Paris brings a technical upgrade to a traditional magician’s tool. Designed with modern performance needs in mind, this device integrates IoT Technology to extend the possibilities of thumb-tip tricks. It caters to magicians, mentalists, and stage performers who want to incorporate innovative, visually impactful effects into their routines.… |
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RC Robotic Fish: A Fun and Functional DIY Project A YouTuber has shared his attempt at building a remote-controlled robotic fish, and the results are both captivating and functional. This latest version combines simplicity and innovation, powered by an Arduino Uno, a single large servo motor, a Bluetooth transceiver (HC05), and a 5V battery pack. The combination of these simple components, along with a straightforward mechanical structure,… |
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RF Clown: An Opensource Bluetooth Jamming Tool The RF Clown is a compact and portable Bluetooth Low Energy (BLE) jamming tool designed to block Bluetooth signals and prevent devices from communicating. It works by emitting interference signals that disrupt Bluetooth connections, preventing devices from pairing or transmitting data. At the heart of the RF Clown is a microcontroller with BLE capabilities, such as the ESP32. This… |
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RF-Clown: A DIY Wireless Pen Testing Tool for Security Researchers The tech community has seen a surge in interest around portable penetration-testing devices like Flipper Zero, HackRF, M1 Multitool, HackBat, and Bleshark. These gadgets, known for their versatility and compactness, have become favourites among security researchers and hobbyists exploring wireless vulnerabilities. Adding to this lineup is an exciting new project: RF-Clown, a portable, open-… |
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RFOXiA MultiNav Pro+ BLE Module: Accurate Navigation, Tracking and Environmental Sensing RFOXiA has introduced the MultiNav Pro+ BLE Module, a compact unit designed for precise navigation, tracking and environmental sensing. It provides accurate location data and real-time environmental information, making it suitable for various technical applications. The module integrates GNSS (Global Navigation Satellite System) for positioning and environmental… |
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DIY Wireless Scrolling Dial: The Perfect Fix for Endless Scrolling Scrolling has become an essential part of our digital lives, whether it's navigating through lengthy datasheets, coding, or simply reading articles. Yet, the act of scrolling—endlessly flicking a mouse wheel or swiping a trackpad—can become a frustrating ordeal, even physically taxing. Recognising the absence of a perfect off-the-shelf solution, Yoiutuber Engineer Bo took matters into his own… |
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Silicon Labs SiWx917Y Module: Compact, Pre-Certified Module with Enhanced Security and Ultra-Low Power IoT Connectivity Silicon Labs has introduced the SiWx917Y, an ultra-low-power module designed for secure and efficient wireless connectivity, integrating Wi-Fi 6 and Bluetooth Low Energy (LE) 5.4. The module simplifies the development and certification process for Wi-Fi 6 devices by offering advanced security, robust wireless performance, and a full-featured application processor. The SiWx917Y modules are… |
