Description: This is the easiest way possible to add small, bright RGB pixels to your project. Adafruit took their same technology from their Flora NeoPixels and made them breadboard friendly, with two rows of 3 x 0.1" spaced header on each side for easy soldering, chaining and breadboarding. 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 24-bit color ability 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 its OK if your battery power changes or fluctuates a little.
Each pixel draws as much as 36mA (all three RGB LEDs on for full brightness white). An Arduino can drive up to 500 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 5 (used to be 4) individually controllable pixels. In the photos above we show the pixels with headers soldered on, but the pixels do not come with any headers. You can pick up some in the shop if you need.
Adafruit's detailed NeoPixel Uberguide has everything you need to use NeoPixels in any shape and size. Including ready-to-go library & example code for the Arduino UNO/Duemilanove/Diecimila, Flora/Micro/Leonardo, Trinket/Gemma, Arduino Due & Arduino Mega/ADK (all versions)
Technical Details:
- Dimensions: 0.4" x 0.5" x 0.1" / 10.2mm x 12.7mm x 2.5mm
- 0.5" (12.5mm) diameter circle PCB, 0.1" (2.5mm) total thickness
- 800 KHz speed protocol
- Chainable design
- 3.5-5VDC power (can run at 3.3V but color will be dimmed), constant current 12mA per LED (~36mA max total per pixel)
- NeoPixel EagleCAD PCB files and Fritzing Library available in the NeoPixel tutorial.
Revision History:
- As of August 30, 2024 - Adafruit is no longer able to get the old 9V-compatible WS2812S chips, this now comes with the SK6812 which is 5V max, but it's a better LED overall and doesn't have power-up flashes and is less sensitive to input level voltages. Adafruit now includes 5 rather than 4 breakouts! They also updated this PCB with Adafruit Pinguin to make a lovely and legible silkscreen.