|
|
| (13 intermediate revisions by 7 users not shown) |
| Line 1: |
Line 1: |
| {{Floating TOC}}
| | Obsolete. |
| | |
| == HacDC Lab Occupancy Sensor ==
| |
| | |
| HacDC's lab occupancy sensor is now operational.
| |
| | |
| Key features include:
| |
| # Real-time and historical occupancy data is available for your projects. Perhaps a twitter bot, data visualization heat map or remote occupancy indicator?
| |
| # The underlying architecture demonstrates an approach allowing bidirectional communications between many microcontrollers and many application
| |
| # The Google Calendar "[email protected]" is updated every five minutes with current occupancy data | |
| | |
| | |
| | |
| == Technical Overview ==
| |
| | |
| Martin configured a sensor system consisting of an Arduino, a Radioshack photoresistor (276-1657) and a Quest passive infrared motion detector as shown in the following schematic diagram.
| |
| | |
| [[Image:OccupancySensor.png]]
| |
| | |
| This Arduino is connected to the jukebox computer via USB and monitored by a simple Python script that forwards occupancy sensor data to a Spread messaging system (see spread.org). Several "agent" applications receive occupancy status messages via Spread and perform tasks such as updating a Google Calendar and data logging.
| |
| | |
| All software developed as part of this project is GPLed and available via LaunchPad at: https://launchpad.net/hacdcoccupancy
| |
| | |
| A demonstration agent is also included in the distribution, providing a convenient starting point for your projects. This demo agent currently toggles LEDs in my house based on HacDC lab occupancy status.
| |
| | |
| == HacDC Doorman Google Calendar ==
| |
| <include iframe src="//www.google.com/calendar/embed?mode=WEEK&height=600&wkst=1&bgcolor=%23FFFFFF&src=hacdcdoorman%40gmail.com&color=%23A32929&ctz=America%2FNew_York" style=" border-width:0 " width="800" height="600" frameborder="0" scrolling="no"></iframe>
| |
