For those of you that did not know, I attended DefCon this year (and have been for a few years now). It’s quite an experience being surrounded by so many people with a similar mindset on security in general.
This year I decided to make a badge addon, and all the files related to that can be found here. I handed these out at the conference, and didn’t have very many.
It’s a “Heat Index” indicator, which basically calculates the perceived temperature based on the combination of actual temperature and current humidity levels. Then it flashes an LED once per second to indicate those calculated values. Really overall it’s nothing special, but was a fun and challenging design exercise.
It also acts as an STM32F030 breakout board, so you can reprogram it to do something more useful later on. 🙂
This was a good practice activity for another hardware market I want to get into, which will probably take a lot of time and prototyping before anything particular is released.