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• #2
If you like WS2812, Banggood has some nice circulars:
http://www.banggood.com/CJMCU-61-Bit-WS2812-5050-RGB-LED-Driver-Development-Board-p-1008123.html
http://www.banggood.com/CJMCU-24-Bit-WS2812-5050-RGB-LED-Driver-Development-Board-p-974188.html -
• #3
o connected to a 3.3V power supply
o board comes without pullups - choose 4.7K
o found id 0x60 and 0x70
Found a nice circular LED Bar from microbot MR400-013.1 using a NXP PC9635 I2C chip.
Operating power supply voltage range of 2.3 V to 5.5 V
Target is to write a module, more infos in the next couple days