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Neopixel Ring
— ARC UI for onboard computers to control NeoPixel rings via serial: test/run patterns, preview and copy Arduino serial commands, includes sample code.
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The BlinkM is an I2C device so therefore you connect it to the I2C port.
If you have a V3 EZ-B it will plug directly in to the I2C port if you want to or you can run wires to it if it's away from the board.
If it's a V4 you can connect to any of the three I2C ports.
it works!