A few years ago I created something similar for the London Tube although it was much more crude, just a pi zero and a strip of RGB LED lights that represented t

A few years ago I created something similar for the London Tube although it was much more crude, just a pi zero and a strip of RGB LED lights that represented the colours of the tube lines. The store that made the LED strip caught wind of it some how and they cut out a wooden enclosure for me to put the thing in, with the tube line names etched into the wood, which completely blew me away. My dad kept on telling me at the time to sell it as a product but even then I knew that not being a hardware guy and not really having any experience building products it would be a dumb, expensive move - and stories like this reaffirm that this was the right thinking. Not saying it can't be done, it's just someone with more electronics expertise is way more qualified than a guy throwing together a python script on a Pi zero with retail components.