First of all, a big thank you to the people behind this project!
My conversion was a success — MYNDberry worked right away. I do have a few questions and remarks, though, which I couldn’t find addressed anywhere in the documentation.
When the connection is established via Bluetooth, the MoodeOS web interface is no longer available — is that correct?
The Teufel app no longer works after the conversion, which was to be expected?
Is there any way to check the battery level somewhere? I can no longer see it on my Android, and the app doesn’t work anymore either. Is the only option now the MYND’s blink code, or are there other ways?
Volume during Bluetooth operation: in my case it’s extreme — even at level two (very low on the phone) I already get a good room-filling volume. I read that you could potentially apply an attenuation using a filter via the MoodeOS DSP. MoodeOS has a great many options — are there any tips on how to adjust this?
The volume steps when adjusting the volume via the amp are very small — can they be made larger? (because you have to press so many times)
Also: I still have some PCBs left over. Shipping within Switzerland is possible, or pickup in mid-August at the Maker Faire Hannover at our booth
Regarding Bluetooth and WiFi, there is a setting which by default disables WiFi during Bluetooth playback. But that can be configured in /etc/mynd_rpi_link.conf (Not sure if this can be done through the WebUI):
[bt_wifi_coexistence]
# Aggressive BT stability mode for Pi Zero 2 W:
# In an attempt to imporve bluetooth stability,
# turn WiFi radio off while Bluetooth is active and restore it after disconnecting.
# Requires sudoers entries for:
# /usr/bin/nmcli radio wifi off
# /usr/bin/nmcli radio wifi on
disable_wifi_when_bt_active = true
# true -> disable WiFi only while BT source is actively streaming
# false -> disable WiFi whenever BT source is selected
disable_only_while_streaming = true
# After BT session ends, attempt to reconnect previously active WiFi profile(s)
restore_previous_connection = true
The reason is that they use the same chip and antenna and it might cause audio distortion during playback. See also here in the wiki.
The syslog on the device contains a printout when the percentage changes. If you log in via ssh and do journalctl -f you should see it eventually like this:
