Guide

This will be a series of articles on implementing a notification system using Gmail and Line Bot.
The goal here is to be able to query gmail for a select set of emails. Process them and then send a notification. This could be altered to work with a Bot of some other service.

I recently went through the process of upgrading my raspberry Pis from Stretch to Buster. I had previously done this moving from Jessie.

Whilst I had no real issues with task following the guides that I found. I did discover one thing that concerned me, and was missing from the guides.

After upgrading to Buster, my /boot had less than 200kb of free storage.

I did some reading and found that Buster seems to need a lot more space in /boot than for previous releases. Buster itself now defaults to 256M of space for /boot

So I went about solving this issue.

I would suggest that you do these steps before upgrading just to avoid any possible problems.

I have been running Home Assistant for a while. Things are going well. But I have had some issues with presence detection using the standard device_tracker component. Though I live in a small place, being in Tokyo, Home Assistant sometimes stops detecting phones if they are in an area of the apartment a little away from the Home Assistant server. This I suspect is due to the position of the Raspberry Pi and the building material.