Transmitter works. Payload is built. Parachute and balloon purchased. Weather is bad and won’t be good until 2019.
July 2018 Update:
This was a side project in 2017. I need to fix some bugs and am planning to flip it from private to open source soon. This is a semi-active project at this point.
The main functionality works. I’ve had a raspberry Pi running it almost constantly for 2 years now with rarely any issues.