Lately I’ve been playing with Internet of Things type technologies. Started with Raspberry PI’s but got turned onto ESP8266 microprocessors. They can run a lite-weight version of python called micropython. Basically it lets me run a cheap sensor platform anywhere I can get power for about $20. I’ve got the code for the pi and the esp8266 in this repo. Most of the esp8266 chips come with at least one LED on the board you can blink, so I wrote a library to blink morse code.