RGB LED Driver
High resolution colour control
Seemingly straightforward projects can turn into a ‘money pit’ or ‘component graveyard’ if you are not careful. This can easily come true if you intend driving colour LEDs in RGB mode with infinitely variable colour mixing and individual control over the brightness of each LED. Conventional control circuitry tends to produce quite bulky systems too. On the other hand, using a microcontroller and a specialised IC keeps the space footprint under control and eliminates all the uncertainties...
Listing every possible application for infinitely variable control of individual RGB LEDs is an impossible task. What is not in dispute is the fact that the variety of RGB LEDs (one each in red, green and blue on a single carrier or in a single package) has risen significantly in recent years. Anyone planning to put these colourful semiconductor light sources to practical use needs to think carefully about the control electronics to be used.
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