Project:Music Station: Difference between revisions
NitramLegov (talk | contribs) (just some formatting) |
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== Further Improvements == | == Further Improvements == | ||
===Shutdown board in case of power losses=== | ===Shutdown board in case of power losses=== | ||
Since the system is powered by batteries, there is a possibility of sudden power outages due to a lack of remaining battery power. Therefore, there should be a circuit which either switches from one battery to another and then possibly sends a shutdown signal to the system. | |||
Note: This is only needed for raspberry pi based systems. | |||
===Different speaker=== | ===Different speaker=== | ||
So far the system is based on [http://www.visaton.de/en/products/coaxial-speakers/px-10-4-ohm Visaton PX-10 speakers]. Since they don´t provide [https://de.wikipedia.org/wiki/Thiele-Small-Parameter Thiele Small Parameters], I didn´t calculate the needed box volume and just made a 12 liter box for each speaker, which is most likely way too much. | |||
The next version should use different speakers where the ideal box volume is known. | |||
===Check possibility to use a ESP32=== | ===Check possibility to use a ESP32=== | ||
On the last Festival, I was mainly using the bluetooth functionality. Playback using Mopidy as well as the Wifi Hotspot was not really used. For bluetooth playback, a ESP32 should be enough. This should lower the needed power significantly. | |||
===Make a workshop out of it=== | ===Make a workshop out of it=== | ||
Once the new design is complete and tested, there could be a workshop in which we teach others to build their own bluetooth speaker. | |||
===Design a 3D-Printed front for the controls=== | ===Design a 3D-Printed front for the controls=== | ||
[[Category:Audio]] | [[Category:Audio]] | ||
[[Category:Raspberry Pi]] | [[Category:Raspberry Pi]] | ||
Revision as of 21:20, 15 August 2018
| ProjectInfoBox Music Station | |
|---|---|
| |
| Status: | |
| Initiator: | Martin |
| Team: | Martin |
| Tools Used: | Raspberry Pi, Wood |
| Software Used: | Musicbox |
Since existing bluetooth speakers do not provide enough power, Martin decided to build custom speakers for usage on the camping ground of different festivals.
Software
The system is based on a regular Rasbian Lite installation, which gets adjusted by the installation script in the following way: 1. Installation and configuration of mopidy and useful extensions 2. Installation and configuration of bt_speaker
Hardware
From an electronics perspective, the system uses a raspberry pi in combination with a X400 HAT. It gets powered by a couple of plumb batteries.
The case is built with multiplex wood.
Further Improvements
Shutdown board in case of power losses
Since the system is powered by batteries, there is a possibility of sudden power outages due to a lack of remaining battery power. Therefore, there should be a circuit which either switches from one battery to another and then possibly sends a shutdown signal to the system.
Note: This is only needed for raspberry pi based systems.
Different speaker
So far the system is based on Visaton PX-10 speakers. Since they don´t provide Thiele Small Parameters, I didn´t calculate the needed box volume and just made a 12 liter box for each speaker, which is most likely way too much.
The next version should use different speakers where the ideal box volume is known.
Check possibility to use a ESP32
On the last Festival, I was mainly using the bluetooth functionality. Playback using Mopidy as well as the Wifi Hotspot was not really used. For bluetooth playback, a ESP32 should be enough. This should lower the needed power significantly.
Make a workshop out of it
Once the new design is complete and tested, there could be a workshop in which we teach others to build their own bluetooth speaker.
