DOT. @ instructables.com
I and my friends like to have fun in summer. We like to fool around with music when we are camping. To make those parties more likely to professional ones I have made portable 9V LED strobe. For my surprise it really gives a big effect. I hope you will like it!
DIY portable LED strobe - [Link]
While LED based solid-state lighting continues to gain ground, and several major challenges have been solved, some still remain. Energy savings and the savings that a long product lifetime brings certainly have spurred adoption in a long list of applications. Cities, sports facilities, retail, medical, residential and industrial use, are all on the rise. The move to LED-based solid-state lighting is gaining ground based on the promise of energy savings and long lifetime.
Six LED challenges that still remain - [Link]
This wearable LED heart simulator pendant was inspired by my work as a cardiovascular surgical nurse as well as my love of electronics. It simulates the electrical activity of 17 different rhythms and when paired with the heart backplane, it becomes an audio and pulse simulator as well.
Wearable LED heart simulator pendant - [Link]
Here’s a tutorial from Maxim on how to design smarter LED lighting. [via]
How smart is your LED lighting system? While LED lighting holds the promise of reducing energy consumption and maintenance costs, smart LED lighting designs improve system performance in both areas, achieving higher performance per watt and reducing cost in the long term. Energy measurement, ambient light sensing, and communication serve as the cornerstones of smart LED lighting design. Energy measurement provides system health and consumption information. Ambient light sensing reduces an LED’s on-time, conserving energy and extending diode lifetime. Communication links together each luminaire for identification of maintenance and system level coordination. The contribution of components to the overall system performance will be explored.
App Note: Adding intelligence to LED lighting - [Link]
The circuit is powered by a PIC12F683 microcontroller and source code is included.
PIC12F683 Mood vase - [Link]
deflater @ instructables.com writes:
You’ll be the talk of the town when you wear this obnoxious, oversized, completely impractical wristwatch. Display your favourite foul language, song lyrics, prime numbers, etc. Inspired by the Microreader kit, I decided to make a giant watch using similar sixteen segment displays. Twelve hours later, I came out of my masochistic fugue and stopped trying to route a sixteen bit data bus on a single sided pcb small enough to wear on your wrist. Returning to my digikey box of mystery, I came up with a four character display made up of 5×7 led matrices. 7 bit parallel data input, no need for umpteen current limiting resistors, upper and lower case characters, the rest writes itself.
Programmable watch with DLO3416 four character display - [Link]
Syst3mX @ instructables.com writes:
After making a 8X10 matrix a lot of people asked me about expanding the matrix to some thing bigger, and some wanted to write stuff to the matrix via a PC, so one day I looked at a pile of LEDs that I had leftover from a LED cube projected and I decided to make a bigger matrix with all the things people wanted.
Make a 24×6 LED matrix - [Link]
jimk3038 @ instructables.com writes:
This instructable fully describes building a PWM driver to control four LEDs from one small Microchip 12F609 board. The original design was called the “Kemper LED Lamp” and I sold a few lamps to several brave folks through my web site. However, I’ve come to discover selling small quantities to a few folks is a major pain in the backside. Hand soldering these together and then selling them at $4 bucks each is no way to make money.
Open Source Microchip LED / PWM Driver Project - [Link]
Vlorbschnat @ instructables.com writes:
What follows are instructions for constructing a battery powered portable VU meter, as well as detailed instructions for the construction of the PCB needed to complete this project. It was designed to illuminate from 0-10 LEDs depending on ambient sound levels. I designed it to be attached to a wristband, clothing, or a necklace if the design is scaled down somewhat. Its purpose is to be worn in a nightclub or similar locale where music is playing, as an animated alternative to a glow stick. It can be used, however, for a variety of alternative purposes.
Battery Powered Portable VU Meter - [Link]
ledartist @ instructables.com
My obsession of this year is full-color LED. I have made Aurora 9×18 as a result. As much as I love the scale of Aurora 9×18, I also wanted to have something smaller, perhaps something that can go on a costume.
Here’s Aurora mini 18. It has 18 full-color/RGB LEDs on a smallest possible circle. With a single PIC microcontroller, changing 18 RGB LEDs smoothly is reaching the technical limit. With the new PIC with wider supply voltage, the circuit is simplified compared to Aurora 9 bar, and use of two AA or AAA batteries (3V operation) or one Lithium battery is now possible.
Aurora mini 18 - [Link]