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An introduction to power supplies and managing different voltages
LED projects inevitably involve dealing with a few different voltages. The electronics way to talk about this is to just say that voltage is about potential energy. There's a lot more potential energy at higher voltages, as if you've got a high-pressure pipe or you are on the top of the hill…

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The fundamentals of driving a plain LED
To successfully drive an LED, you need to arrange for a controlled amount of current to flow through the LED and switch it off if necessary. Sometimes most of the work is done for you. For example, you can really easily find non-intelligent LED strips that are packaged such that "all" you need to…

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A brief tour of intelligent LEDs
I'm not really sure what the history of these is. At some point, I started seeing people using RGB LED stuff and suddenly everybody was screwing with them. Hackaday indicates that the WS2812 dates back to the second half of 2013 or so with the APA102 showing up on the scene a year later . Either…