5Pcs Round 7x 5050 RGBW Cool White LED 6000K With Integrated Drivers Module Board


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$26.49

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1). This is the Cool White RGBW version.
2). This board 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 an egg yolk. 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). 
3). We fit seven of our tiny 5050 (5mm x 5mm) smart RGBW LEDs onto a beautiful, round PCB with mounting holes and a chainable design that you can use only one microcontroller pin to control as many as you can chain together! Each LED is addressable as the driver chip is inside the LED. Each one has ~18mA constant current drive so the color will be very consistent even if the voltage varies, and no external choke resistors are required making the design slim. Power the whole thing with 5VDC (4-7V works).
4). Use 800 KHz protocol so specific timing is required. The PWM rate is ~400 Hz, which works well but is noticable if the LED is moving. In comparison, 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. (we recommend DotStars if you can use them)
5). The LEDs are 'chainable' by connecting the output of one Jewel into the input of another. There is a single data line with a very timing-specific protocol. Since the protocol is very sensitive to timing, it requires a real-time microconroller such as an AVR, Arduino, PIC, mbed, etc. It cannot be used with a Linux-based microcomputer or interpreted microcontroller such as the netduino or Basic Stamp. Our wonderfully-written library for Arduino supports these pixels! As it requires hand-tuned assembly it is only for AVR cores but others may have ported this chip driver code so please google around. An 8MHz or faster processor is required.
6). Comes as a single round board with 7 individually addressable RGBW LEDs assembled and tested.
 
Description:
 
Diameter: 22.95mm / 0.9"
Weight: 1.4g
May use either WS2812B or SK6812-based LEDs. They are the same brightness, color and protocol

Package includes:

5 x LED board

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