Using a M5AtomS3R to display live bus arrival info

I&rsquo;ve been meaning to play with microcontrollers for a long time. When I was at university, I was really jealous of my friends who had studied electronics in high school and were able to use these mysterious devices. The learning curve was really hard before ESP32 and Arduino made things much more standard and easy. The latter, especially, came with an IDE that, over time, has become the de…