Layman’s RGB LED module is an ultra-simple project realized without any microcontrollers. An RGB LED can be driven with a cmos presettable up/down counter. This is accomplished by connecting the three ...

[Paul’s] project is a great example of how you can take a simple project and turn it into something more interesting. He built himself a jack-o-lantern with an Internet controlled RGB LED embedded ...

To match the brightness and color of multiple LEDs in RGB applications you should drive all LEDs with a constant current. However, some of these driver ICs require the complication of microprocessor ...

Additive color mixing with red, green and blue LEDs grouped into pixels has opened new possibilities for displays and lighting designs. Since the first modules with an integrated circuit (IC) appeared ...

When you need to quantify the color of an object, you’ve got quite a few options. You can throw a Raspberry Pi camera and OpenCV at the problem and approach it through software, or you can buy an ...

Lighting a string of LEDs at a constant brightness requires driving it with a regulated current. A boost converter is commonly used to step up the voltage to a level high enough to bias the LEDs on ...

Simple but effective all-analog fading LED circuit. This simple fading LED circuit is basically a relaxation oscillator based on a PUT (Programmable Unijunction Transistor) device, that is formed by ...

If you've ever wanted a customizable smart display without the high cost or vendor lock-in, this DIY project might inspire you. Adam Conway, Lead Technical Editor and Developer for XDA, recently ...