Previously I had assumed the Raspberry Pi 5 computer I am using for this project was not functioning properly. Thankfully, after updating the operating system, researching possible issues and running a few rudimentary tests, I am pleased to acknowledge the 4GB model seen in the photo below is working as one would expect.

The two symptoms I observed which led me to assume the RPi 5 was malfunctioning included an inactive cooling fan and unresponsive GPIO pins. It turns out the attached CPU cooling fan only turns on when the computer reaches 50 degrees Celsius. And all the header pins responded to additional sensor testing. So it is full steam ahead into another self-quantification endeavor.

Ultimately it is important for this Raspberry Pi 5 computer to work correctly because it is central to how this sleep quantification project will be conducted. Without it I will not be able to even launch my experiment.

Given the confirmation my computer hardware is working, next steps include beginning the assembly of components into a working measurement system. Followed by writing the Python scripts, testing connectivity and ensuring long-term reliability of the whole contraption. Along these lines, I expect the remaining stages of this project to take upwards of 6 months to complete. I am in no rush to finish this experiment and have enjoyed the process thus far.