Hello,
I've read your job description and I can help you with this task because I've used FLORA main board in a couple of wearable projects that I've done for my clients that includes interfacing with Neopixels as well. In my last project, I had used FLORA LSM303 module (which is based on LSM303DLHC sensor) for getting accelerometer values on FLORA main board through its I2C interface. So I believe can help you with this project.
Please let me know of other details/requirements of your project so that we can discuss it further. I'm excited to work on this. Thanks.