Adafruit
NeoPixel RGBW Mini Button PCB - Pack of 10
These are the smallest NeoPixel breakouts around! Tiny, bright RGB+White pixels to your project. These little PCBs are only 9.1mm x 9.1mm and have two set...
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These are the smallest NeoPixel breakouts around! Tiny, bright RGB+White pixels to your project. These little PCBs are only 9.1mm x 9.1mm and have two sets of three pads on the back for soldering wires. These ultra-bright LEDs have a constant-current driver cooked right into the LED package! The pixels are chainable - so you only need 1 pin/wire to control as many LEDs as you like.
These pixels have full 32-bit color ability (24 bits RGB and then 8 bits of white) with PWM taken care of by the controller chip. Since the LED is so bright, you need less current/power to get the effects you want. The driver is constant current so it's OK if your battery power changes or fluctuates a little.
The NeoPixel is 'split', one half is the RGB you know and love, the other half is a white LED with a yellow phosphor. Unlit, it resembles a school bus. Lit up these are insanely bright (like ow my eye hurts) and can be controlled with 8-bit PWM per channel (8 x 4 channels = 32-bit color overall). Great for adding lots of colorful + warm white dots to your project!
Note these are RGBW and so you will have to make sure your NeoPixel controller is set up for RGBW rather than the standard/default RGB!
Each pixel draws as much as ~70mA (all four RGBW LEDs on for full brightness white). An Arduino can drive up to 350 pixels at 30 FPS (it will run out of RAM after that). Using ribbon cable you can string these up to 6" apart (after that, you might get power droops and data corruption)
Each order comes with 10 individually controllable pixel buttons.
We have a tutorial showing wiring, power usage calculations, example code for usage, etc. for NeoPixel Please check it out! Please note you will need a NeoPixel library with RGBW support which is not always available. If you try to control these with a plain 'RGB' NeoPixel library, you'll get very weird results. Our Adafruit NeoPixel library does support RGBW but if you're using something else, just be aware that it might require some hacking. Also, the Blue LED element is close to the white phosphor and the light bleeds into it, so blue light will have a mix of white as well.
Jargon buster
Plain-language definitions for the technical terms used above.
- constant-current driver
- A constant-current driver supplies a set current to its load even as the load voltage changes. It is commonly used to keep LED brightness consistent and protect LEDs from being overdriven, whether for indicator LEDs, high-power lighting, or display backlights.
- fps
- fps means frames per second, or how many video images are captured or displayed each second. A higher fps generally gives smoother motion, which helps when the camera or the scene being viewed is moving.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- NeoPixel
- A type of addressable LED system where colour data is sent along a single digital data line from one LED or controller to the next. Compatibility matters because the timing and signal format must match for the lights or driver board to respond correctly.
- PWM
- Pulse Width Modulation is a way for a digital pin to simulate variable output power by switching on and off very quickly. It matters for controlling things like LED brightness, motor speed, or servo-style signals from a microcontroller pin.
- RAM
- RAM (random-access memory) is fast, temporary memory a device uses for working data while it is running; in its common volatile form, its contents are lost when power is removed. Some devices offer a mode that applies settings to RAM only, which is handy for testing changes temporarily because they are not stored permanently and disappear at power-off.
- RGB
- Short for red, green and blue, the three primary colours of light that are mixed in varying amounts to make a wide range of colours. In electronics RGB can refer to an LED or pixel that blends these three colours, or to a colour signal or interface that carries separate red, green and blue channels.
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