Return polarity to False.

[kattni]

Interrupt pins are meant to pull low when active. Turns out the solution is to wire the LED to 3.3V instead of ground, not to alter the polarity.

[KeithTheEE]

Reading through the docs on for the chip page 22 the wording of this pin isn't clear to me (which I think is a large reason this setting is confusing)

Since I don't have the device I can't test it, so instead I'll have to ask you:

If the interrupt polarity is set to Low (False), does that me the pin is High until the interrupt triggers and it dips low?

Similarly, when the interrupt polarity is set to High (True), is the pin Low until the interrupt triggers?

[kattni]

@KeithTheEE Thank you for the thoughtful review! Good thinking, checking the datasheet, but it's pretty useless regarding this topic. Carter and I went through it yesterday while troubleshooting this whole situation, and found nothing helpful.

You are exactly correct. The interrupt remains high until it is triggered, and then dips low. This is evidently exactly how it should work, and how most interrupt pins in this type of situation work. I imagine the ability to configure it was added for customisability, but it defaults to this behavior because that is the "expected" behavior.

The problem was, I had the LED wired to GND, so it was not acting in the way I thought it should, and I assumed the thing that had to be altered was the software. This is not the case, and when it's wired to 3V, it works properly with the script as it was to begin with.

[KeithTheEE]

Thank you for the clarification!

That pin setting strikes me as strange so that helped me understand what was going on.

Looks good to me!