Latest news with #RaspberryPi
The Verge
a day ago
- Entertainment
- The Verge
The ZX Spectrum inventor's nephew created a new ultra-thin handheld emulator.
Posted Jul 4, 2025 at 3:55 PM UTC 1/2 The GamerCard's Raspberry Pi is compatible with emulators like RetroPie so you can play thousands of retro titles on the handheld, although most won't fill its unique square screen. Image: Grant Sinclair Cardiff
The Verge
a day ago
- The Verge
The Ploopy Knob is an open-source control dial for your PC
Ploopy has announced another desktop accessory called the Ploopy Knob that can function like a control dial for adjusting volume, scrolling documents, or scrubbing through media on a computer. The Canadian company isn't exactly a household name like Logitech, but Ploopy's open-source peripherals offer a lot of customizability, and like its mouse and trackballs, you can customize the look of the Knob by 3D-printing your own hardware. The Ploopy Knob is available now through the company's website for $49.99 CAD (around $37). Unlike many of the company's other products, which can be purchased as cheaper DIY kits you build yourself, the Knob is only available as a fully assembled product with software preinstalled that works right out of the box. However, since it's open-source, you can download all the design files and software on Ploopy's GitHub page if you want to source the parts and build your own from scratch. Powered by a Raspberry Pi RP2040 microcontroller, the Ploopy Knob uses a position sensor with a 12-bit resolution and a polling rate of over 1kHz to track its rotational movements. The company says the Knob supports high-resolution pixel-by-pixel scrolling on Windows and Linux, but warns that the experience may not be as smooth on Apple computers. 'macOS does smoothing for input devices automatically. This interferes with the code that runs on the Knob, meaning that pixel-by-pixel high-resolution scrolling doesn't work on macOS. It still functions as a scrolling device, but the scrolling is in discrete steps.' As with the company's other peripherals, the Ploopy Knob uses the open-source QMK firmware, which runs entirely on the device so you don't need to install additional software on your computer.
New Indian Express
2 days ago
- New Indian Express
Government PU college student develops facial-recognition attendance system
BENGALURU: A government PU college student in Puttur, Dakshina Kannada, has developed a face-recognition-based attendance system that not only records student attendance within seconds but also sends an instant message on the Telegram app to parents every time their child arrives at school. Arun Kumar V, a PU II student at Government PU College, Kombettu in Puttur taluk, created the system using his knowledge from the IT stream under the National Skills Qualifications Framework (NSQF), which he has been studying since Class 9. Inspired by his learning at the Atal Tinkering Lab - innovation workspaces established in schools across India by the Atal Innovation Mission (AIM), a flagship initiative of NITI Aayog, Arun spent three months designing and building the system with guidance from his IT teacher, Ashlesh Kumar. The device uses a web camera to recognise students' faces as they arrive at school. Once identified, the student's name appears on a display screen, and a message is immediately sent to their parents' phone. This message includes name, date, time, and confirmation of attendance. Before using the system, each student must be registered by entering their name, class, section, parents' mobile number, and five photographs taken from different angles. Daily at 11 am, the system generates a PDF report of the attendance, which is sent to the head master's phone via the Telegram app. At the same time, students who have not been marked present are registered as absent, and their parents receive an alert. After that point, the system does not allow further attendance entries for the day. The device has the capacity to store information for 500 students and takes just 1-2 seconds to record each entry. In schools, one device can handle up to 200 students. The current version, which is still in the experimental stage, was built using low-cost equipment, bringing the total cost to approximately Rs 13,000. However, this cost may increase for larger-scale production. The system is powered by a Raspberry Pi motherboard, and includes other parts to hold the components. For full functionality, the device needs to be connected to the internet via Wi-Fi. Arun said that with further changes, his model can be adopted in more schools across the state.
Hans India
2 days ago
- Business
- Hans India
Young Innovator Develops Low-Cost Facial Recognition System
Puttur: A pioneering innovation by Arun Kumar, a pre-university student at Government PU College in Kombettu, near Puttur has developed an efficient facial recognition-based attendance system. Highlighted in a social media post on Wednesday by the Karnataka Department of School Education and Literacy Secretariat, this project showcases the transformative potential of vocational training in addressing practical challenges. Under the mentorship of vocational trainer Ashlesh Kumar, Arun dedicated two months to developing the system, which leverages a Raspberry Pi single-board computer and a camera to automatically log student attendance upon entry. Costing approximately ₹13,000 for the prototype, the system offers a budget-friendly alternative to conventional methods, though a fully scaled version would require additional investment. Capable of tracking attendance for up to 200 students, the system enhances transparency by sending real-time updates to parents via the Telegram app. It also streamlines administrative tasks, delivering a comprehensive attendance report to the headmaster by 11:00 AM on the same day. Parents of absent students receive notifications, ensuring prompt communication. Arun's initiative, supported by his college, exemplifies how vocational education can empower students to create impactful, cost-effective solutions.
Geeky Gadgets
3 days ago
- Geeky Gadgets
Build a Stunning E-Ink Calendar with a Raspberry Pi
Imagine a calendar that's always up-to-date, consumes minimal energy, and looks sleek enough to blend seamlessly into your home or office. Now, picture it running on a device no larger than a deck of cards. Sounds futuristic? Not anymore. With the combination of a Raspberry Pi and an E-Ink display, you can create a customizable, energy-efficient calendar that's as functional as it is visually stunning. Whether you're tired of cluttered paper planners or frustrated with staring at bright screens all day, this project offers a refreshing alternative that merges modern technology with timeless simplicity. In this hands-on project by AKZ Dev, you'll learn how to build your very own E-Ink calendar from scratch. From selecting the right hardware, like a Raspberry Pi Zero 2 W and a Waveshare display, to integrating your favorite digital calendars for real-time updates, this guide walks you through every step of the process. Along the way, you'll discover how to tailor your calendar's layout, colors, and even language preferences to suit your unique needs. Whether you're organizing a busy family schedule or streamlining your workday, this project promises to transform the way you manage your time—while adding a touch of minimalist elegance to your space. DIY E-Ink Calendar Guide Essential Components and Hardware To begin, you'll need specific hardware components to bring your E-Ink calendar to life: Raspberry Pi Zero 2 W or a similar model for processing and connectivity or a similar model for processing and connectivity E-paper display , such as Waveshare or Inky Impression, for the visual output , such as Waveshare or Inky Impression, for the visual output Driver hat to connect the e-paper display to the Raspberry Pi to connect the e-paper display to the Raspberry Pi Optional: A frame, such as an IKEA picture frame, for a polished and professional finish E-paper displays are available in various sizes, such as 13.3″, 7.3″, and 7.5″, and offer options for black-and-white or color output. For a vibrant and dynamic display, consider using models with Spectra 6 technology, which provide faster refresh rates and color-coded visuals. If simplicity and efficiency are your priorities, black-and-white displays are a reliable and cost-effective alternative. The Advantages of E-Paper Technology E-paper technology is highly regarded for its energy efficiency and excellent readability, closely resembling traditional ink on paper. This makes it ideal for a calendar that remains visible throughout the day without consuming significant power. Displays with Spectra 6 technology further enhance functionality by allowing color-coded events and faster updates, making sure your calendar is always current and easy to read. The flexibility of e-paper displays allows you to position them horizontally or vertically, adapting to your available space and preferences. Whether mounted on a wall or placed on a desk, the calendar integrates seamlessly into any environment. Raspberry Pi E-Ink Calendar Project Watch this video on YouTube. Expand your understanding of E-Ink calendar with additional resources from our extensive library of articles. Seamless Integration with Digital Calendars One of the standout features of this project is its ability to integrate with popular digital calendar platforms, including: Google Calendar Microsoft Outlook Apple Calendar By using ICAL URLs, the E-Ink calendar can sync events in real time, making sure your schedule is always up to date. Python libraries handle the parsing of calendar data, while the FullCalendar JavaScript library transforms this data into a visually appealing and user-friendly format. This integration supports multiple calendars, allowing you to color-code events for different categories, such as work, personal, or family schedules. This feature enhances clarity and organization, making it easier to manage even the busiest agendas. Customizing Your E-Ink Calendar One of the most appealing aspects of this project is the extensive customization it offers. You can tailor the calendar to suit your specific needs by selecting from various layout styles, including: Monthly view for an overview of your schedule for an overview of your schedule Weekly view for detailed planning for detailed planning Agenda view for a chronological list of events for a chronological list of events List view for simplified task management Additional customization options include: Setting the start day of the week of the week Adjusting language preferences for multilingual use for multilingual use Including or excluding specific elements, such as weekends or event times For a personalized touch, you can modify colors, add background images, or create themes that align with your aesthetic preferences. These options ensure the calendar is both functional and visually appealing, making it a perfect fit for any environment. How the System Operates The E-Ink calendar operates by generating visuals of your schedule using a headless Chromium browser. This browser produces high-quality images of your calendar, which are then displayed on the e-paper screen. The system is designed to automatically adapt to different screen sizes and orientations, making sure a seamless and crisp presentation regardless of your hardware configuration. Collaborative Development and Community Support This project thrives on contributions from the open source community. Platforms like GitHub and Discord have played a significant role in shaping its features, incorporating feedback and suggestions from users worldwide. This collaborative approach ensures the calendar remains versatile, robust, and continuously evolving to meet the needs of a diverse user base. Practical Uses and Applications The E-Ink calendar is a versatile tool with a wide range of applications, including: Organizing work schedules for improved productivity for improved productivity Coordinating family activities to keep everyone on the same page to keep everyone on the same page Planning holidays or events with ease and clarity Its compact design and energy-efficient display make it a practical addition to any space, offering a clear and concise overview of your day. Whether used in a home office, kitchen, or shared workspace, the E-Ink calendar provides a modern solution with the charm and simplicity of a traditional paper planner. Media Credit: AKZ Dev Filed Under: DIY Projects, Top News Latest Geeky Gadgets Deals Disclosure: Some of our articles include affiliate links. If you buy something through one of these links, Geeky Gadgets may earn an affiliate commission. Learn about our Disclosure Policy.
