[IDEA] Nanosound DACs + Plugins + App

[TheOldPresbyope]

Does the manufacturer of this device provide any instructions on how to integrate it?

Hi!, actually they don't provide detailed instructions for software implementation, it's probably on the other way around, I could read this post from their forum looking for an API to start the implementation from their side on moOde: https://nanomesher.com/forum/?view=thread&id=9

I remember reading a post that I cannot find anymore that was somebody asking to make this DAC work on moOde and somebody told him to choose HiFi Berry DAC to make it work but I cannot confirm this.

I was taking a look at the mentioned moOde API on nanosound forum but I couldn't find it, if you have any info about it, please let me know and I can post it on nanosound forum so they can start the implementation to moOde.

The other information is the GPIO connections which seems to be quite straightforward: https://nanomesher.com/nanosound-gpio-usage/

Cheers!
Bruno.

1) regarding the Nanosound DAC itself, it apparently feeds a PCM5122 DAC chip via I2S. So does the HiFiBerry DAC+ Pro (not the HiFiBerry DAC+ which uses the PCM5102). That would be the first device selection I'd try in moOde. 

2) as for the buttons and display, it's hard to tell how much homework you are asking folks on this forum to do on someone else's behalf. 

The nanomesher discussion you mention contained a link to an old diyaudio post by Tim [1] which  outlined the moving parts in moOde that make up the "API". In particular, he mentioned the currentsong.txt file, commands like mpc and vol.sh, and the sqlite3 database. In this forum you are in now there are numerous FAQs and Guides by folks about how they interfaced buttons and displays and IR receivers and such using this information and the RaspberryPi GPIO interface.

Regards,
Kent


[1] that post is dated 26th December 2015. Since that time there have been changes. Most notably, the location of the currentsong.txt file was changed from /var/www to /var/local/www when the ability to squash the /var/www directory was introduced.