user Davuzz11 writes:
This instructable will show you how to create a dice using Arduino and few components. It’s an easy and fun project, suitable for beginners and those who want to start with Arduino; it also requires a minimal amount of components. This explaines how to create it in the breadboard, how to solder it and how to make some changes.
Arduino Led Dice – [Link]
This project shows how to build a simple theft detterant which may be just as effective. The idea is to have a flashing red led indicate that your car is protected. This device can protect your vehicle from potential thieves – it makes it look like your car has an armed alarm system installed, which causes thieves to pass by your car in search of an easier target.
Fake Car Alarm Circuit - [Link]
LED Fader 2 is a project that can control up to 16 outputs, designed for driving LED’s. All 16 outputs are pulse width modulated, providing 256 levels of brightness at a refresh rate of 100 Hz. A script language, designed for controlling the outputs, is provided as well. The program is written in AVR assembler for the ATMega8 and Mega16 microcontrollers from Atmel. Check details on the link below.
LED Fader 2 - [Link]
This project is a simple little box that makes wiring up an 8 x 8 LED Matrix easy. It uses the MAX7219 (or 7221) LED driver chip from Maxim and uses the Matrix library in the Arduino library.
8 x 8 LED Matrix in acrylic - [Link]
This project shows how to build a LED illumination ring that can be directly attached to Dremel drill. It uses 20 sunny-white SMD LEDs and help you illuminate the work surface.
Until yesterday I was not happy with lighting when drilling PCBs: It was either too dark or there were cast shadows (of my fingers or the drill itself). So I had to concentrate hard on drilling all the holes correctly centered where they belong. But now my problem is solved
Improved illumination for drilling PCBs - [Link]
In this project Markus shows us how he build a 7 segment RGB LED display by replacing the individual leds of the display.
7-segment LEDs are available in red, green, yellow and blue (maybe even in white?). There don’t seem to be any in RGB though, so if you want to dynamically use different colors in your project you either have to use multiple devices or use a different technology.
So this seemed like an opportunity for a nice DIY project: Why not take an existing 7-segment display, remove the original LEDs and add some RGB ones?
7-Segment RGB-LED – [Link]
This project is a POV able to be attached on the bicycle wheels. It has a row of 32 LEDs on each PCB and is able to create a Persistence of Vision (POV) effect. Check schematic and construction details on the link below.
POV on Bicycle Wheels – [Link]
This project shows how to build a LED clock that simulates the hands of a traditional clock using rows of LEDs. It also has a ‘digital’ mode, where the LEDs are used to display the time in digital way. Clock is based on PIC 16f877 microcontroller. Check schematics and construction details on the link below. [via]
‘Analog’ LED Clock - [Link]
This project I made for my little daughter. It is 24 channel light illumination. The schematic is very simple 24 LEDs, 1 MCU and some additional components. The main principle is dynamic indication, which is usually implemented for control of 7-segment digital indicators. Here is the same, as for indicators are used traditional 5-mm LEDs.
LED effects - [Link]
This is a really impressive clock made using 60 RGB SMD Leds, making any color palette possible. It uses an Arduino, 12 LED drivers and 60 RGB Leds. All the functions of the clock are controlled via a capacitance switch that is hidden behind the infinity logo at the bottom of the clock. [via]
In this version of the software the color palette cycles through the colors of the rainbow twice a day. There is a light sensor to make sure that the intensity is tuned down in the dark.
Equinox Clock - [Link]