E-ink and TOTP++

E-ink (or E-paper) displays are so cool! I love them! I got one recently, and decided to use it for my TOTP project, instead of the very basic OLED that I’d put. While at it, and since this was a bigger display — I decided to fill-up the rest of the space with something. The post-Covid reopening of my office paved the way for that something!

Since this was my first week (first few days, to be precise) at work, and since they have a new location now — I was apprehensive about the travel time (both to and fro). And, it so happens that TomTom offers pretty useful Traffic APIs — not just for routing, but for real-time traffic updates as well!

E-ink display showing TOTP & Travel times

So, I decided to give it a go, and after a little bit of dabbling to find the geo-coordinates (lat,lon) of my usual route — managed to arrive at the right set of params for the API call!

Once this was in place, I used the rest of the space on the display to show the O2H and H2O travel times.

…and here’s ze video proof!

Video showing E-ink with display updates