MIT’s Bathroom Sensors

Check to see if a bathroom is vacant in Random Hall online. THere is also one for the laundry room.

Since we have single-occupancy bathrooms, we just place a sensor on every bathroom door. We considered checking whether the lights were on, but for a number of reasons decided on door sensors instead. This is fed into a PIC microcontroller, which then talks to the actual bathroom server. The setup for the laundry server is similar, only we monitor the status lights on the washing machines, and we don’t need very long wires.