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January 23, 2015 AT 7:12 pm

NEW PRODUCTS – APA102 5050 Warm White LED w/ Integrated Driver Chip – 10 Pack – ~3000K / APA102 5050 Cool White LED w/ Integrated Driver Chip – 10 Pack – ~6000K

2350 2351

NEW PRODUCTS – APA102 5050 Warm White LED w/ Integrated Driver Chip – 10 Pack – ~3000K / APA102 5050 Cool White LED w/ Integrated Driver Chip – 10 Pack – ~6000K


For those of us who are maybe a little tired of rainbows, we now have ‘smart LEDs’ in monochrome! Make your own smart Warm White LED or Cool White LED arrangement with the same integrated LED driver that is used in our new fancy DotStar strips. Unlit, the Warm White color resembles an egg yolk, and the Cool White color resembles a yellow Starburst. Lit up these are insanely bright (like ow my eye hurts) and can be controlled with 24 bit high-frequency PWM. The phosphor helps diffuse the 3 white dies inside together for a very bright but consistent light, compared to what you get by trying to mix RGB to make white (which never quite looks right)

This tiny 5050 (5mm x 5mm) SMD LED is fairly easy to solder and is the most compact way possible to integrate multiple bright LEDs to a design. If you want to prototype with these, we recommend our 5050-size LED breakout PCBs, solder them on for a breadboard-friendly package.

2350 2351 lit

They’re also a great upgrade for people who have loved and used NeoPixels for a few years but want to use the same kind of technology for monochromatic lighting. DotStar LEDs use generic 2-wire SPI, so you can push data much faster than with the NeoPixel 800 KHz protocol and there’s no specific timing required. They also have much higher PWM refresh rates, so you can do Persistence-of-Vision (POV) and have less flickering, particularly at low brightness levels.

Like NeoPixels, DotStar LEDs are 5050-sized LEDs with an embedded microcontroller inside the LED. You can set the brightness of each of 3 individual warm or cool white dies epoxied into the case. Each LED acts like a shift register, reading incoming data on the input pins, and then shifting the previous data out on the output pin. By sending a long string of data, you can control an infinite number of LEDs, just tack on more or disconnect unwanted LEDs at the end. The PWM is built into each LED-chip so once you set the brightness you can stop talking to the strip and it will continue to PWM all the LEDs for you.

Another nice thing about DotStars is their high PWM rate. You only have to set the brightness data for each pixel LED once, and then the LED+built-in-chip will handle the PWMing. On NeoPixels, this PWM rate happens 400 Hz, which works well but is noticably at lower brightnesses and if the strip is moving in any way. DotStars have a 20 KHz PWM rate, so even when moving the LED around, you won’t see the pixelation, the blending is very smooth.

These come in packages with 10 individual LEDs.

We have a tutorial showing wiring, power usage calculations, example code for usage, etc. for DotStars Please check it out! Please note that the tutorial and code talk about RGB, but of course, this LED is just WWW, three individual white LEDs instead.

Both are in stock and shipping now!


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1 Comment

  1. What would interest me would be an APA102 with different whites all in one package. I found a “WW+CW+NW” strip on aliexpress a while back, and while I haven’t put it on a PWM controller yet it looks like it has a decent chance of doing whatever color temperature I want with a high enough CRI to be worthwhile. However, when I tried to order more, they said they weren’t popular enough to warrant selling in less than 100m batches… Of course, being a single strip it’s only bulk controllable. An APA102 strip with the 3 different types of white (if it’s possible based on construction techniques re: phosphors etc) would be very useful….

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