LEDs

WS2812 addressable LEDs test

RGB LEDs are awesome – especially the new, fancy ones with the WS2812 RGB LED driver. These LEDs can be individually controlled to display red, green, and blue, but interfacing them with a microcontroller or computer. To test controlling WS2812 RGB LEDs I bought a cheap addressable LED strip. An addressable RGB LED strip is

LED tube replaces fluorescent

Due real Fluorescent lamp fire danger I have pretty much tried to get rid of potentially dangerous tradtional starters in the fuorescent lamps. So I replaced the starter with electronic safety model – if bulb does not start, it will stay off without heating. Or at least should. I got one Axxel S10 starter that

LED COB module tested

LED manufacturers continue to innovate to improve economies of scale. One of the newest packaging solutions designed to help lower costs is chip-on-board (COB) light source modules. COB (Chips on Board) , is a technology of LED packaging: Multi LED chips are packaged together as one lighting module. When it light up, it looks like