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Project:Spacensus: Difference between revisions
From London Hackspace Wiki
→Overview
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==Overview== | ==Overview== | ||
We were donated two Laser Diode Retroreflective Sensors which I now use to monitor space occupancy. The sensors look across the main doorway. The beams are staggered so that direction (arriving, leaving) can be determined by the order in which the beams are broken. They are mounted at waist height. | We were donated two Laser Diode Retroreflective Sensors which I now use to monitor space occupancy. The sensors look across the main doorway. The beams are staggered so that direction (arriving, leaving) can be determined by the order in which the beams are broken. They are mounted at waist height. | ||
The sensors are hooked-up to an Arduino via some optocouplers. The Arduino is connected to a PC so that the count can be queried over a network. | |||
The occupancy level is [http://hack.rs/cacti/graph.php?action=view&local_graph_id=35&rra_id=all charted on cacti]. | The occupancy level is [http://hack.rs/cacti/graph.php?action=view&local_graph_id=35&rra_id=all charted on cacti]. | ||
