HacDC's lab occupancy sensor is now operational.
Key features include:
1. Real-time and historical occupancy data is available for your projects. Perhaps a twitter bot, data visualization heat map or remote occupancy indicator?
2. The underlying architecture demonstrates an approach allowing bidirectional communications between many microcontrollers and many application
3. The Google Calendar "hacdcdoorman@gmail.com" is updated every five minutes with current occupancy data