Fresh hacks every day
Here’s one of the best takes on a glowing display that we’ve ever seen. Currently [H] is using his creation as a fuzzy clock, but it is certainly capable of displaying just about any messages.
The project uses a wheel of luminous paper as the display surface. This has a glow-in-the-dark quality to it which can be charged up using … Read the rest
This entry in the Red Bull Creation contest uses a laser to charge up a glow-in-the-dark message board. The concept is something we’ve seen several times before. Since light can excite a phosphorescent surface, moving pixels of light over that surface leaves a fading trail. Most recently we saw a spinning ring message board. This contest entry is … Read the rest
For those who are unfamiliar, “Freeze Frame” is the name of a common display in science museums. It is a small dark room with a single wall covered in phosphorescent material. Opposite of this wall is a flash on a timer. You enter the room, strike a pose and wait for the flash, then view your shadow preserved on the … Read the rest
[Emre] sent in a cool art piece he’s been working on that visualizes your voice without the use of a microcontroller.
The project is called Visible Voice only consists of a laser, mirror, audio speaker and a phosphorescent disk. The laser shines onto a mirror mounted on the speaker and is reflected onto the disk. When an audio signal is … Read the rest
We’re taking a field trip from the backyard, garage, and basement hacking in order to look in on what research scientists are up to these days. A group from the Johns Hopkins Institute for NanoBioTechnology has been manufacturing quantum dots for use in the medical field. Made up of Cadmium Selenide, this is a nanomaterial that you can think … Read the rest
[David] has always wanted use UV LEDs to write on a phosphorescent surface ever since saw an article about it on Make. He accidentally purchased UV LEDs when he meant to buy purple ones, so he figured that his mistake was all the reason he needed to give UV light writing a try.
He built a PIC16F628 UV POV board … Read the rest
Hackaday reader [BGR] wrote in to share a video he put together showing off a cool “poor man’s LED scroller” that he built. Rather than build a huge array of LEDs, spending tons of time time wiring and programming, he decided to use only a handful of LEDs on a moving display instead.
The scroller is built upon a PIC16F887 … Read the rest
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