Yearly Archives - 2022

05 Jul

16 Bit LEDs make the world more beautiful

As the human eye can only discern about 10 million different colors, this sounds like a lot. But if you consider that a neutral (single color) gradient can only have 256 different values, you will quickly understand why similar tones in an 8-bit image can cause artifacts. Those artifacts are called posterization. Similarly the 16-bit setting (BPC) would result in 48-bits per pixel (BPP). The available number of pixel values here is mind boggling (2^48). More than 16 million times [...]

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05 Jul

The difference between 8-bit and 16-bit ?

’BIT DEPTH’ AND ‘BIT SIZE’ A ‘bit’ is a computer term for data storage. It can only contain two values, typically 0 or 1. 8-bit simply means the data chunk is 8 bits in total (or 2 to the power of 8, as each bit can be either ‘1’ or ‘0’). This allows for numeric values ranging from 0 to 255. Similarly 16-bit means the data size is 16 bits in total. (or 2 to the power of 16) This allows for [...]

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05 Jul

how to driver HD108 LEDs

Hi everyone, Newstar has a new chip with the same footprint as the APA102/APA107/HD107s. The special thing about it is: it can do 16 bit per channel! It is also superior to the (already pretty great) APA102 in two other ways: it has 27KHz PWM and it undestands 3.0V as logic level “HIGH”, so you could drive it at 5V and have 3.3V logic voltage without any tricks. 16bit is probably a major change to FastLED, but I think it [...]

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28 Feb

RGB vs RGBW LED Strip

RGB vs RGBW LED StripRGB LED strip has been around for a while now and has opened the door to previously unheard-of lighting possibilities, allowing not only a wide range of customisable colours but also the ability to cut and join any length to create totally unique shapes. In response to popular demand though, there’s now a new kid on the block, RGB+W, which adds an extra white chip into the mix. Why might you need this? Read on. What’s [...]

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