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Hackernoon
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Image Credit: Hackernoon
Turn Your Raspberry Pi Pico into a Robot That Obeys Lines Like a Pro
- The article demonstrates how to turn a Raspberry Pi Pico into a line-following robot using various components.
- A line follower robot is described as an autonomous robot that can track and follow a line on the floor, typically a black line.
- Components required include Raspberry Pi Pico, IR sensor array, L298N motor driver, motors, wheels, caster wheel, LiPo battery, wires, and a computer.
- The software part involves installing Thonny IDE, flashing the Pico with Micropython Firmware, and setting up Thonny for programming.
- The article provides MicroPython code for motor control, sensor reading, PID control, smart search function, and the main loop for the line follower robot.
- Hardware part includes connections between Raspberry Pi Pico, L298N, and the IR sensor array for the line follower.
- IR sensor calibration steps are provided to ensure the accurate functioning of the line follower robot.
- A test run video link is shared for reference, showcasing the working model of the line-following robot.
- The project concludes with thanks and the author's name, Shivank Dan.
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Knowridge
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Image Credit: Knowridge
Screens that talk: New OLED display plays different sounds from every pixel
- Researchers at POSTECH in South Korea have developed the world’s first display that can produce different sounds from each individual pixel.
- They created a new kind of OLED screen that integrates sound directly from the display itself, eliminating the need for separate sound systems.
- The display uses ultra-thin sound units called piezoelectric exciters inside the screen's frame to turn each pixel into its own speaker.
- This breakthrough technology has various applications, such as personalized audio experiences in cars, virtual reality headsets, and smartphones, enhancing the overall user experience.
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Knowridge
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Tiny tech could bring super-fast 6G and sci-fi dreams to life
- Scientists at the University of Bristol have made a breakthrough in semiconductor technology, paving the way for super-fast 6G networks.
- 6G networks are expected to be faster and more powerful than 5G, enabling instant data sharing globally for applications like remote medical care and smarter driverless cars.
- The team developed a new type of radio frequency amplifier using a latch effect, improving signal efficiency. These amplifiers are made from gallium nitride and have more than 1,000 tiny fins to boost current.
- Testing showed that the new technology is durable and can further increase power. Researchers aim to integrate this technology into real-world products with the potential to fulfill science fiction dreams through 6G technology.
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Knowridge
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New intercrystals could power greener electronics and future quantum devices
- Scientists at Rutgers University have discovered a new type of material, intercrystals, that could revolutionize electronics and quantum devices.
- Intercrystals are created by layering graphene sheets and hexagonal boron nitride, causing a small change in structure with significant effects on electron behavior.
- These intercrystals exhibit unique properties like magnetism and superconductivity, allowing for the design of new electronic functions through twistronics.
- Using common elements like carbon, boron, and nitrogen, intercrystals may lead to greener and more sustainable electronics with applications in energy-efficient devices and quantum computing.
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Knowridge
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How nano cooling could replace your fridge’s compressor
- Researchers at Johns Hopkins Applied Physics Laboratory and Samsung Electronics have developed a powerful new cooling technology using nano-engineered materials.
- The new cooling system, based on a material called CHESS, is more energy-efficient, quieter, and environmentally friendly compared to traditional compressors.
- CHESS enables refrigerators to be almost twice as efficient as those using current solid-state cooling materials, reducing energy consumption by up to 70%.
- The technology not only revolutionizes refrigeration but also has the potential to be used in wearable devices, medical prosthetics, and other cooling applications beyond traditional refrigeration.
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Hackernoon
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Meet Riemann Computing: Data Compression, CubeSats, and 2024's Electronics Startup of the Year
- Riemann Computing, the 2024 Electronics Startup of the Year, focuses on data compression technologies to revolutionize telecom and infrastructure sectors.
- They hold patents for data compression and computing methods, stand out through perseverance, and have a team comprising experienced engineers from companies like Qualcomm and Tesla.
- Their significant milestone was receiving Experimental License Authority from the FCC, aiming to set standards in telemetry and file formats with ISO in the future.
- A key lesson learned is the importance of decision-making and resilience in the face of challenges for startups.
- Riemann Computing envisions the industry evolving towards search engine reindexing and ethical technology, prioritizing privacy preservation and innovation.
- In 2025, they plan to continue prototyping, share updates on their YouTube channel and LinkedIn, and progress in computing advancements.
- Geopolitical fluctuations have impacted Riemann Computing, hindering grant opportunities and intellectual property safeguarding, but they remain optimistic about U.S. manufacturing independence.
- The relationship with Hackernoon is praised for being open and unique in the tech publication space.
- HackerNoon's Startups of The Year event recognizes and celebrates tech startups globally, offering brand exposure and connecting talent with innovative companies.
- Sponsors like Wellfound, Notion, Hubspot, Bright Data, and Algolia support startups by providing opportunities for growth and optimized resources.
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Knowridge
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How your T-shirt could become your next fitness coach
- Researchers at ETH Zurich, led by Professor Daniel Ahmed, have developed SonoTextiles, innovative fabrics that use sound waves passed through glass fibers to detect movement, touch, and pressure.
- SonoTextiles offer more precise measurements, lighter and more breathable fabrics, and are easier to wash compared to traditional smart fabrics that use electronics.
- The integration of glass fibers into the fabric allows SonoTextiles to measure subtle movements, making them useful for health monitoring, sports training, sign language communication, posture correction, and more.
- While there are durability challenges with glass fibers, the research team is working on making the technology more robust and seamless for everyday clothing use, representing a significant advancement in smart clothing technology.
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Knowridge
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3D-printed smart fabrics stay strong and flexible after washing
- Researchers at Washington State University have developed a method for 3D-printing smart fabrics that are durable and comfortable to wear.
- They used a special solution made of polybutylene succinate and carbon nanotubes to create flexible and conductive fabrics capable of sensing movement and transmitting data.
- The printed fabrics demonstrated durability, maintaining their strength, conductivity, and sensing abilities even after multiple cycles of washing, stretching, and relaxing.
- The use of a biodegradable solvent in the production process highlights the environmentally friendly approach taken by the researchers in advancing smart fabric technology.
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Medium
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Smart Home on a Shoestring: Unlocking a World of Automation for Under $100
- The article discusses how affordable and accessible smart home automation has become, with a range of devices available for under $100 that offer convenience, security, and efficiency.
- It challenges the notion that smart home technology is only for the wealthy, highlighting the decreased prices and diverse options now within reach for a wider audience.
- Smart lighting, home security devices, and virtual assistants are mentioned as essential categories for creating a budget-friendly smart home setup.
- Smart bulbs, plugs, security cameras, and smart speakers all fall within the under $100 budget, providing significant benefits at an affordable price point.
- Basic smart thermostats under $100 offer remote control and scheduling features, enhancing convenience and potential energy savings for homeowners.
- The article emphasizes the importance of strategic purchasing and planning to build a cohesive smart home ecosystem without overspending.
- It encourages readers to embrace the smart home revolution by exploring the affordable gadgets available and experiencing the magic of home automation without financial strain.
- The future of smart living is presented as inclusive and accessible, inviting everyone to be part of the smart home movement without the need to invest thousands of dollars.
- Overall, the article promotes the idea that a smart home is no longer a luxury but a practical and achievable reality for anyone interested in enhancing their living space with modern technology.
- By selecting budget-friendly options and carefully planning their smart home setup, individuals can transform their homes into intelligent and responsive environments without exceeding their financial boundaries.
- In conclusion, the article encourages readers to start small, explore the affordable smart home options, and witness firsthand how these devices can revolutionize their daily routines and elevate their living experience.
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Knowridge
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439
Image Credit: Knowridge
This mind-like device sees and remembers movements instantly
- Engineers at RMIT University have developed a tiny device that processes hand movements in real time, stores visual memories, and performs brain-like tasks independently.
- The breakthrough, based on neuromorphic technology mimicking human brain functions, enhances fields like robotics, autonomous vehicles, and human-machine interaction.
- The device uses molybdenum disulfide (MoS2) to capture light, detect changes in its environment instantly, and store memories efficiently without excessive data or energy consumption.
- This advancement could revolutionize visual tasks in technology, making operations faster, more energy-efficient, and could lead to enhanced capabilities in robots, autonomous vehicles, and various other applications.
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Medium
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LicheeRV Nano — Board programming (Part 2)
- The LicheeRV Nano board programming in C/C++ utilizes a cross-compiler available for x86 Linux or a specialized Jupyter notebook for browser-based development.
- Compilation issues in examples using ioctl can be resolved by editing ioctl.h or through automatic patching in the Google Colab notebook.
- Configuration of pins for GPIO, UART, I2C, PWM, and SPI functions on the LicheeRV Nano board involves pin management via multiplexer selection and specific addresses.
- Settings for pin configurations can be done during board boot using U-Boot or via devmem utility from a running Linux OS for testing purposes.
- Controlling GPIO pins through the Linux GPIO sysfs interface allows for terminal interaction or programmatically from C code, as demonstrated in project examples.
- Similarly, interaction with PWM pins occurs through the sysfs interface, with functionalities like generating square waves and programmatically controlling PWM pins from code.
- Interrupt processing without full-fledged setup is exemplified using Linux API in handling GPIO interruptions effectively.
- Utilizing UART, I2C, and SPI interfaces on the board involves configuring the multiplexer to set up communication channels and interacting with respective devices through C/C++ code snippets.
- Examples provided cover UART data sending, SPI hardware interaction, and I2C devices like AHT20 and BMP280 for temperature and barometer readings.
- Experiments on I2C will be carried out with the WiFi module turned off, and future articles will involve working with a CSI camera connected to the board.
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TechJuice
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AWS Unveils Ocelot Quantum Chip to Slash Error Correction Costs
- Amazon Web Services (AWS) has introduced Ocelot, their first quantum computing chip, aiming to reduce quantum error correction costs significantly.
- Ocelot features a unique architecture with cat-qubit error correction, leveraging superconducting tantalum oscillators for efficient quantum memory.
- Key technical features of Ocelot include native error correction, cat qubits with tantalum oscillators, stacked silicon microchips, and bosonic code realization.
- The announcement of AWS's Ocelot chip is notable for its hardware-level error correction and potential to accelerate the development of fault-tolerant quantum computers.
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Scientificworldinfo
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Electrolysis Technology Advancements for Green Hydrogen Production
- Electrolysis technology advancements are crucial for expanding green hydrogen production, enhancing efficiency, cost-effectiveness, and sustainability.
- Advancements in electrolysis technologies are reshaping the green hydrogen landscape, addressing technical and economic barriers for widespread adoption.
- Electrolysis is integral to green hydrogen production by converting renewable electricity into a carbon-free fuel carrier through water splitting.
- Key electrolysis technologies include Alkaline Water Electrolysis (AWE), Proton Exchange Membrane (PEM) Electrolysis, Anion Exchange Membrane (AEM) Electrolysis, and Solid Oxide Electrolysis Cells (SOEC).
- Efficiency and scalability play critical roles in hydrogen production, impacting operational costs, manufacturing capacity, and renewable energy integration.
- Real-world applications of electrolysis technology span green ammonia production, green steel manufacturing, power-to-gas grid injection, fuel cell mobility, and synthetic e-fuels production.
- Commercial deployment and market trends show a significant increase in electrolyser manufacturing capacity, with notable contributions from regions like China, Europe, and North America.
- Global scale-up efforts aim to meet rising demand for green hydrogen, with partnerships between OEMs and renewable developers driving commercialization and cost-effective systems.
- Technical and commercial challenges in green hydrogen electrolysis include material constraints, system integration, grid flexibility, high upfront costs, policy uncertainty, and immature demand-side infrastructure.
- Future developments in electrolysis technology are expected to focus on cost reduction, efficiency improvement, material innovation, system optimization, and scale-up integration to achieve Net-Zero Emissions goals by 2030 and beyond.
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Livescience
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Image Credit: Livescience
What is Moore’s Law and does this decades-old computing prophecy still hold true?
- Moore's Law was formulated by Gordon Moore in 1965 based on the doubling of transistors on a chip annually, with his prediction holding true for many years.
- Initially, Moore predicted 60 thousand components on a chip by 1975, which set the pace for technological advancements in the semiconductor industry.
- Chip designers, notably at Intel, used Moore's Law as a target, leading to innovations like the 4004 microprocessor and subsequent processors following the law.
- Advancements in material science and manufacturing processes played a crucial role in maintaining the progression aligned with Moore's prediction.
- The evolution from planar to FinFET processors revitalized Moore's Law, enabling the packing of billions of transistors on chips.
- The approach of miniaturization faces challenges due to reaching atomic levels, necessitating a shift towards more sophisticated processors with multiple cores.
- While Moore's Law no longer strictly applies in doubling transistor counts every two years, it continues to drive the industry's pursuit of faster, more capable technology.
- The integration of technologies like neural processing units (NPUs) and advancements in AI indicate the evolving landscape beyond Moore's Law.
- Despite the challenges posed by physical limitations, the trajectory set by Moore's Law continues to inspire innovation and progress in the tech sector.
- Companies are leveraging the spirit of Moore's Law to push boundaries and develop cutting-edge technologies, with potential for further breakthroughs in the future.
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TechJuice
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Image Credit: TechJuice
Revolutionary Chipset Aims to Lower the Price of Flagship Phones
- MediaTek unveiled the Dimensity 9400e, a sub-premium variant of their flagship 9400 chipset, designed for high-end gaming and camera-centric smartphones.
- The Dimensity 9400e features an All Big Core CPU design with Cortex-X4 prime core, Cortex-X4 cores, and Cortex-A720 cores, offering reduced memory support and maintaining flagship-class responsiveness.
- The chipset comes with a 12-core Immortalis-G720 GPU for hardware-accelerated ray tracing, imaging enhancements with an 18-bit RAW ISP, and AI capabilities using MediaTek's APU-790 neural engine.
- Connectivity-wise, the Dimensity 9400e supports Wi-Fi 7, Bluetooth 6.0, sub-6 GHz 5G, and high-resolution display outputs, with early device adoptions anticipated in devices from OnePlus, Realme, and Vivo.
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