https://sudonull.com/quantum-effect-for-powering-chips-from-air-without-batteries
Scientists have discovered the nonlinear Hall effect in bismuth telluride, allowing microchips to be powered by radio signals. Learn about the technology that will rid sensors of batteries in the 6G era.
https://sudonull.com/esp32-s3-internet-radio-code-and-schematic
Assemble internet radio on ESP32-S3 with UDA1334 and OLED. Full code, I2S connection, web interface. For middle/senior IoT developers.
https://sudonull.com/wspr-protocol-python-encoding-of-callsigns
Study the WSPR design for HF radio: 4-FSK modulation, data packing into 50 bits, code examples for callsigns and locators. Implement signal propagation analysis.
https://sudonull.com/spacex-starship-laser-data-transmission-system-2200-km-test
SpaceX tested laser communication on Starship for the first time without radio interference. Learn how this changes space communications and prepares a revolution by 2027. Read the analysis.
https://sudonull.com/tkinter-todo-search-filters-csv-export
Implement status filtering, real-time search and CSV export in Tkinter ToDo. Full code with Combobox, radio buttons and csv.writer. For middle/senior developers.
https://ymaho.com/what-is-the-gold-silver-ratio-and-how-to-use-it
Learn what is the gold silver ratio and how to use it to gauge market sentiment, identify relative value, and make smarter precious metals investment decisions.
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