Kathy over at ElecFreaks shares his DIY shake LED stick in the project log forum: The principle of shake LED stick is based on that people have persistence of visual senses. When you light up a column LED at different moments in different ways, shake it, and a very beautiful picture will display before your eyes. […]
Tag Archives: LED
How to hack a manual control into a cheap DMX dimmer
This article shows how to hack a manual control into a cheap DMX dimmer by Miceuz and Rxdtxd of wemakethings; One of our friends wanted to have a manual-control LED dimmer for his stop motion setup. We had several of these cheap Chinese DMX dimmers. How does one adds potentiometer control to something like this? Just cut […]
blueShift – An OpenXC LED tachometer
In this video Pete Mills demonstrates his blueShift project, an OpenXC LED tachometer he is working on: An Arduino, some addressable LED’s, a bluetooth module, code and a 3D printer come together to make blueShift – An OpenXC LED Tachometer. blueShift is so named for the Bluetooth protocol used for data communication, and the use of […]
Attiny25/45/85 police light with Arduino
Another Instructables by Jan Henrik, a police light with a Attiny25/45/85. He writes: Hello, in this project I want to show you how to build a multi functional Police Light with a Attiny25/45/85 . It will have serval animations , which can be changed with a button on the circuit board, it has 2 channels, […]
Arduino clock generator + divider experiment
John Slee writes: Anyway, I decided to try to make my own clock divider. Didn’t take long to get something working, and you can see the results in the video above. The genuine Arduino Uno is generating a simple square wave on pin 13, which you can observe with the built-in LED. The Freetronics clone […]
ATtiny85 POV display
Vishalapr made this Instructables detailing the build of his DIY POV Display based on ATtiny85: The first time I saw a POV (Persistence Of Vision) display was on a show called FAQ on TV. The POV display consisted of an oscillating shaft with 6 LED’s mounted on the end of the shaft. Since then I have always wanted to make […]
Multitask scheduler for MSP430F5529 launchpad
In this video Jeffrey Antony demonstrates his multitask scheduler for MSP430F5529 launchpad: I have checked in the code to my github repo. Its an completely open source scheduler. Feel free to use it and learn more. I have made the code self explanatory. Enjoy! There are three tasks – first task for blinking the red LED […]
Interactive LED beer pong table
Jeff wrote this Instructable detailing the build of his LED beer pong table project: This instructable will guide you through all of the steps to in order to create a one-of-a-kind beer pong table complete with cup detecting RGB pods, automatic ball washers, a 32×12 ping pong ball LED grid, side LED rings for spectators and an RF interface […]
Battery powered LED Matrix clock project
cburns shared his LED Matrix clock in the project log forum: My latest electronic project, the LEDC which is a LED Matrix clock. It’s the size of a standard business-card, and battery powered. I wanted something that would sit on the desk and I thought, why not use business card holder? It works great, and it’s […]
ATtiny LED driver for an RC car update
joeforker posted an update on his ATtiny LED driver for an RC car we covered previously: This board delivers 100mA through 2 series-wired LEDs like a champ, powered by a 2S LiPo. Night drives are looking bright. The glaringly bright uncomfortable-coming-straight-towards-you high beam look has been achieved. :-) As usual, mistakes were made. The through hole components […]
LED ring based illumination for American optical microscopes
TomKeddie writes: Based on a recommendation in these forums I bought an American Optical 570 stereo microscope on ebay some time back. I added the illumination shown below, I thought it might be useful to others. I cut 3 pieces from a right angle piece of aluminium section, coated them in heatshrink, attached them to […]
Simple SMD LED tester
Peter over at Electronics-Lab posted an article describing how he designed and built his simple SMD LED tester: This project is a simple LED tester and LED polarity checker. It can be used to check 1206, 0805, 0603 and 5mm LEDs. All parts are readily available and they are very cheap. Usage is very simple. Just press the […]
ATtiny LED driver for an RC car
joeforker posted his ATtiny LED driver for an RC car in the project log forum: I thought I’d share a little board I’m making to add headlights to a model car. The board is a little 1″ square thing with mounting holes. The top right contains a constant-current driver built from a BC847 BJT, a 2N7002 […]
App note: Driving LEDs with Xilinx CPLDs
Here’s Xilinx app note on using CPLDs to perform the same functionality as those common LED driver chips. Light-Emitting Diodes (LEDs) are commonplace on the modern day Printed Circuit Board (PCB). Whether they are indicating status, activity or some other function, they need to be driven by a device that can provide sufficient current to […]
Controller board for RGB LED Matrix displays update
EmbeddedCreations posted an update on his controller board for the 16×32 and 32×32 RGB LED Matrix displays: The board looks significantly better with the Teensy soldered directly, instead of with the female headers, but I want to keep the option for people who want to remove their $20 Teensy board to use with another project. […]
Valentine LED chaser
As Valentines day is fast approaching, many are thinking of a wonderful present to their love ones. Tom built this heart-shaped LED chaser and wrote a post on his blog detailing it’s assembly: The object of your desire will not be able to resist a heart-shaped LED chaser, lovingly hand-crafted on perfboard with a CD4017B decade counter […]
RGB LED ring clock
Greeeg over at the 430h forum has been working on a RGB LED ring clock: The clock is comprised of 2 rings of 60 LEDs each. the LEDs are WS2812 parts, which include a built-in driver. The PCB is one of the interesting parts of this clock. I designed the board in altium as a single 6 […]
Controller board for RGB LED Matrix displays
EmbeddedCreations is working on a controller board for the 16×32 and 32×32 RGB LED Matrix displays: I’m working on a controller board for the 16×32 and 32×32 RGB LED Matrix Displays you may have seen at Adafruit and Sparkfun. After seeing Paul’s post on driving WS2811 LED strips with DMA on the Teensy 3.0, I looked into […]
AVR USB RGB LED controller
Zak Kemble writes: While working on an update for my CPU Usage LEDs project, I thought why not just make it into a universal RGB LED controller? The CPU Usage LEDs controller took a value between 0 and 255, worked out what colour it should be and then fade to that colour. This was very […]
Proverbial LED blink program for chipKit DP32
Ras B blogged about his chipKIT DP 32 he won in our last week chipKIt giveaway: Ok I just could not resist, and had to post the Proverbial Led blink Program adapted for the DP32, that has 4 LED’s on the board ( Digital Pins 11 to 14). Will scroll them from right to left, speed varying on the […]