These individually-addressable RGB LED strips are great for all sorts of uses: custom desk lighting, music or data visualisation (an LED thermometer?), or art installations. They come in three different pixel-spacings.
Addressable LEDs, like these NeoPixel-compatible ones, let you individually set each LED in the chain to a specific RGB colour. You can use a Raspberry Pi, Arduino, micro:bit, or other microcontroller to code them, and there are tonnes of different Python, MicroPython (or CircuitPython), Arduino, and more code libraries available.
These LED strips come in three different spacings—30 , 60, or 144 pixels per metre—and in it's sold in metre lengths, so if you order a quantity of 1 then you'll get 1 metre, a quantity of 2 is 2 metres, and so on...
Please note! Lengths of 30 or 60 pixel per metre strip that are shorter than 5m may or may not come with a connector on the end (depending on where it came from in the reel). This connector might not be at the correct end for attaching to your microcontroller, so double check the arrow markings on the underside of the LED strip to make sure you're connecting to the correct end. The 144 pixels per metre strips come ready-made in 1 metre lengths, so you'll get a connector on both ends of the strip with them.
The strips come with a flexible silicone waterproof sleeve, but this can be easily removed, if you like. If your metre length doesn't have a connector on one or other end, then you can use a little blob of hot glue or silicone sealant to seal the flexible sleeve.
The wires are as follows:
- Red: 5V
- Green: data
- White: ground