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“NASA, along with the European Space Agency, is developing a campaign to return the Martian samples to Earth. On Sept. 1, NASA’s Perseverance rover unfurled its arm, placed a drill bit at the Martian surface, and drilled about 2 …
“This is a high-performance, adjustable constant current, and PWM dimmer project. It provides accurate output constant current and PWM control. The circuit regulates the current flowing through a LED/LED array to maintain the desired level of light output. The …
“A busy commuter is ready to walk out the door, only to realize they’ve misplaced their keys and must search through piles of stuff to find them. Rapidly sifting through clutter, they wish they could figure out which pile …
“What happens to ferroelectric materials when their dimensions are greatly reduced? A team of researchers at HZB has now been able to show how this question can be answered in a detailed way. Ferroelectric materials have a special inner structure …
“This project provides AC voltage zero-cross timing detection and a DC voltage after diode rectification with high accuracy. Possible applications for such circuits are AC motor controllers, AC lamp controllers, AC Dimmer Controllers, Home Appliances. The circuit outputs a zero-cross …
“Incorporating scads of LEDs into an electronic project used to be a hairy prospect, a veritable rat’s nest of wires and code. The arrival of dedicated LED driver chips brought welcome relief, offloading grunt work from the microcontroller and …
“Movable airborne antennas receiving cellphone signals could reduce EMF exposure while offering higher data transmission speed and using less power. Mobile tethered drones might offer a speedy and environmentally friendly alternative for receiving terrestrial base stations while alleviating public concerns …
“From Rembrandt to Picasso, artists have been using the right combination of color and texture to conjure emotive responses. Today, artists have capitalized on the versatility of additive manufacturing, more commonly known as 3-D printing, to create, restore, and modify …
“A Rapid Prompting Method (RPM) letterboard with capacitive touch sensors & Bluetooth connectivity for enhanced functionality The Rapid Prompting Method (RPM) is a technique developed by Soma Mukhopadhyay as a vehicle for non-verbal autistic children (and adults) to communicate and pursue …
“After various experiments and failed attempts to design a 7400-based computer, I came to a quite minimalistic 8-bit approach which is nevertheless pretty versatile and can utilize a surprisingly large amount of memory resources. The CPU core itself executes its …