Here's a hard learned tip... when purchasing electronic devices for these types of projects, *always* ensure that you have a datasheet up front that you can review to ensure that it seems reasonably sane, and that you can understand at least the core information it contains.

I have written software across several languages for over a hundred random ICs and devices, and the only thing worse than no documentation, is poorly written documentation that is incorrect (nothing like the fun of debugging an IC to learn after three days of head-desking that the damned documentation failed to mention overlapping registers!).

Hopefully this device comes with proper docs, but in the future, solidify that fact up front if you carry on doing projects like this.

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