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WS2812B vs WS2822S Pixels for Blinky Tile and the necessity of address programming

Blinkey Tiles use the WS2822S [Programming tool here] (https://github.com/Blinkinlabs/WS282x_Programmer/blob/master/DmxSimpleMod.cpp) [Specification/Datasheet here] (http://akizukidenshi.com/download/ds/worldsemi/WS2822S.pdf) ) These have DMX addresses programmed into the chip. Does anyone know: 1. How long these chips have been around? 2. How long they can be expect to be continued in manufacture? (VERY LITTLE about these pixels are out there) 3. If they MUST be permanently programmed with an address before use? 4. If the DMX address programming is changeable at some point? Can it be done "In Place" or must it be isolated? How many times can It be reprogrammed? 5. If the Lightbuddy LED controller dies, can I get just one of those? 6. Is there something else I could use in its place? 7. Some of the write-ups say you COULD use Neopixels (Are these the exact same as WS2812B ?) instead of WS2822's/. What is the downside of using WS2812B's instead of WS2822S's? 8. Where is the address programmer's specification for WS2822S? 9. Are the Blinkey Tile 2822S's compatible with the same driver as the Blinkey Tape Control Board? What is interchangeable, if anything? Wish I could get these questions answered in an FAQ!

Comments

  • 1. How long these chips have been around? 2. How long they can be expect to be continued in manufacture? (VERY LITTLE about these pixels are out there) They're discontinued from the manufacturer, however we have a large stock of them. Please understand that we make the BlinkyTile, however World Semi designed and manufactured the WS2822 LED. 3. If they MUST be permanently programmed with an address before use? 4. If the DMX address programming is changeable at some point? Can it be done "In Place" or must it be isolated? How many times can It be reprogrammed? They need to be programmed once before using them, but can be reprogrammed as many times as you want. 5. If the Lightbuddy LED controller dies, can I get just one of those? Yes, contact us at contact@blinkinlabs.com and we can get you a replacement 6. Is there something else I could use in its place? Yes, any Arduino or similar microcontroller can be used to control them. They use the DMX protocol, but with a 0/5V signal instead of RS485. 7. Some of the write-ups say you COULD use Neopixels (Are these the exact same as WS2812B ?) instead of WS2822's/. What is the downside of using WS2812B's instead of WS2822S's? Neopixel is a marketing name that Adafruit came up with to refer to the WS2812B, they are exactly the same thing. The WS2822s is controlled in parallel, so you can connect them in any way you like, while the WS2812 is connected in serial and has to be connected in 9. Where is the address programmer's specification for WS2822S? It's similar to the WS2821. We had to reverse engineer it from the World Semi programmer, and unfortunately didn't document it clearly. The LightBuddy controller can be used to program the addresses, by using this Python script: https://github.com/Blinkinlabs/BlinkyTile/blob/master/python_example/addressprogrammer.py 11. Are the Blinkey Tile 2822S's compatible with the same driver as the Blinkey Tape Control Board? What is interchangeable, if anything? By default, they aren't compatible, however you can use Arduino to modify the BlinkyTape firmware to output DMX, and then the BlinkyTape controller would be able to control the BlinkyTiles.
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