Hmmm, I'm not sure what the problem is, but the battery I used was a 5V not a 9V, maybe that's the problem?, also I recommend you to check the wiring, and try with the second library.

Great Post!, I will be definitively trying this for my projects, by the way, my name is Gary Vladimir, I'm a 15 yo front end dev and also love writing my blog, I follow everyone that follows me back 😉😉 Here's my blog: https://blog.garybricks.com/ Keep up the good content!

Hi!, I'm glad you found the article useful, the error shown above has nothing to do with the adafruit library or hardware, the problem it's clear in the last line: zeroDivisionError: float division by zero that means that the code it's performing a division by zero which is not possible. Have you changed the simplest.py file? in your code, I'm seeing lines that are not found in the original one. Edit: I've checked the library and it says that it's' deprecated, maybe that has to do with the problem, either way, I recommend you skip that test and work with the second library I showed in the post, it's simpler and works better. Hope this helps, let me know how you do.