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CircuitPython 7.3.0 Released

“This is CircuitPython 7.3.0, the latest minor revision of CircuitPython, and is a new stable release. Notable changes to 7.3.0 since 7.2.5 - Experimental mDNS support. - USB to to Serial/JTAG support for REPL on …

Commodore 64 to Raspberry Pi Pico RAM interface

“This project exposes a 16 KiB window of a Raspberry Pi Pico’s RAM to a Commodore 64 via the expansion port. It includes a hardware design and software for the Pico C++ SDK. The Hardware Schematic, PCB, and project …

Custom ‘Headphones’ Boost Atomic Radio Reception 100-Fold

“Researchers at the National Institute of Standards and Technology (NIST) have boosted the sensitivity of their atomic radio receiver a hundredfold by enclosing the small glass cylinder of cesium atoms inside what looks like custom copper “headphones.” The structure — a …

Dancing In The Light

“University of Pittsburgh Distinguished Professor Anna Balazs collaborated with senior author Joanna Aizenberg, the Amy Smith Berylson Professor of Materials Science and Professor of Chemistry & Chemical Biology at SEAS at Harvard on research published in Nature. Mastering control over the …

Designing a programmable sound generator board

“I’ve recently been getting into chiptunes, including both writing music as well as programs to generate the sounds that play the music. My interest in sound generation goes back to 2018, when I wrote a small library for TI …

DIY Arduino Audio Spectrum Analyzer on VFD Display

“A spectrum analyzer is a measurement tool that displays real-time frequency analysis of incoming audio signals. It is usually an integral part of equalizers and audio signal processing devices. The vertical axis shows the amplitude of certain frequencies measured in …

DIY Pan Tilt Control Using Servos for ESP32 Cam

“Tilt Control Using Servos for ESP32 Cam ! WiFi Security Camera This guide will show you how to use two servos to create a pan-tilt control for the ESP32-CAM. The ESP32 Cam is a small camera that can be used …

Dyson is working on ‘top secret’ robots that will do your household chores

“You might know Dyson for its sci-fi looking vacuum cleaners, futuristic-looking fans and its state-of-the-art hairdryers. But Dyson has been working on a secret project you probably do not know about and could realise a dream that humanity has been …

Electrons in a crystal exhibit linked and knotted quantum twists

“New experiments reveal an elaborate linked quantum structure. As physicists delve deeper into the quantum realm, they are discovering an infinitesimally small world composed of a strange and surprising array of links, knots and winding. Some quantum materials exhibit magnetic …

Emulating impossible ‘unipolar’ laser pulses paves the way for processing quantum information

“Quantum materials emit light as though it were only a positive pulse, rather than a positive-negative oscillation. A laser pulse that sidesteps the inherent symmetry of light waves could manipulate quantum information, potentially bringing us closer to room temperature quantum …