Bemix is a music system which plays user selected music in the Bemis bathroom. Residents can select music over a web interface and can turn the music on and off directly from the bathroom or remotely over the web.
There are three versions of Bemix:
- Bemix v1.0 - the original version, it has since been uninstalled to be upgraded.
- Bemix v2.0 - the current version and will be installed shortly.
- Bemix v3.0 - this version is under development.
Bemix v1.0 was designed to play music in the Bemis showers through speakers located in the Bemis bathroom. It plays music selected through Glirnath, a web interface. You can control it via Glirnath or a touch-switch located in the bathroom.
The touch-switch was hidden in a towel rack in the Bemis bathroom. When someone touched the towel rack and the faucet at the same time, the op-amp senses the change in voltage, compares it to an internal reference voltage, and amplifies it.
Bemix v2.0 is the current version of the Bemis bathroom music system. It will be fully operational following the installation of cable trays on 4E. Bemix v2.0 will span two other bathrooms in addition to the Bemis bathroom. We will be using a commercial touch-switch IC (QT1013) for improved reliability. Custom software is currently under development.
Bemix v3.0 will be a complete redesign of Bemix v2.0. It will be integrated into the 4E Network and will support song selection in addition to basic functionality. The playlist will be displayed on a LCD screen in the bathroom.