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0-30V, 0-7A Adjustable Switching Power Supply

“0-30V, 0-7A Adjustable Switching Power Supply [CC-CV with LED] DC to DC buck converters is a famous topology in the electronic and a widely used circuit in electronic devices. A buck converter steps down the input voltage while it …

3 crew leave China’s space station for Earth after 90 days

” Three astronauts who lived for 90 days on China’s space station departed Thursday in preparation for returning to Earth. The national space agency said Nie Haisheng, Liu Boming and Tang Hongbo boarded the Shenzhou-12 spacecraft and undocked from the …

360° Arduino Radar with 2xHC-SR04 Sensors

“In this case, it is interesting that are used two sensors to scan the entire 360-degree space. This time I will show you how to make Arduino-based ultrasonic radar. We could call it a Sonar because it is using sound …

After 20 years of trying, scientists succeed in doping a 1D chain of cuprates

“The chemically controlled chains reveal an ultrastrong attraction between electrons that may help cuprate superconductors carry electrical current with no loss at relatively high temperatures. When scientists study unconventional superconductors – complex materials that conduct electricity with zero loss at relatively …

Astronomers solve 900-year-old cosmic mystery surrounding Chinese supernova of 1181AD

“A 900-year-old cosmic mystery surrounding the origins of a famous supernova first spotted over China in 1181AD has finally been solved, according to an international team of astronomers. New research published today (September 15, 2021) says that a faint, fast …

Beaming broadband across the Congo River

“Taara’s wireless optical communications links are now beaming light-speed connectivity from Brazzaville to Kinshasa across the Congo River What if we could bring fiber-like speeds to unconnected and underserved communities that, because of the geography or cost, fiber can …

Project  clOCkTAL

clOCkTAL

“Because binary coded decimal clocks are too easy to read. Binary Coded Octal clock with auto brightness control, based on a PIC16F688, developed with SDCC. Firmware The heart of this minimalist clock is the zero error Bresenham algorithm. It uses …

Creating a RISC-V system with an FPGA

“In this project you will learn how to implement a RISC-V processor in a SmartFusion2 SoC. Everybody knows that the processor of the moment is the RISC-V, even it is not a processor itself, the amount of the …

Dumb but Great Point and Shoot Camera with ESP32 CAM

“A completely portable ESP32 Based Point and Shoot Camera setup that works, kinda works. So the idea here was to take this very useful ESP32 CAM board and flash it with a sketch that lets us take an image and …

Engineering various sources of loss provides new features for perfect light absorption

“Natural and manmade physical structures all lose energy, and scientists work hard to eliminate that loss or compensate for it. Optical and photonic devices lose energy through light scattering, radiation or material absorption. In some situations, however, intentionally yet carefully …