Raspberry Zero W V1.1 + Volumio / I2S-connection + Dietpi-Update V6.12
its a little bit silent here lately but it doesn´t matter->here some infos about a Raspberry Zero W V1.1..
because they´ve updated the Arduino-ESP32-core here on github->https://github.com/espressif/arduino-esp32, and my self-made-noob-sketch didnt work since then on my Doit-ESP32S-V1 anymore, i thought also about to use my raspberry zero W V1.1 to control the ES9038Q2M via web or BT (for the I2C-control of the Digipoti MCP4131 for example, or the relais-control for the different-filter-settings and so on..)
for this (on a raspberry) “Node Red” (a programming language/editor) looks like a very good attempt/approach..post maybe then a little bit more..
anyway first i have to get the zero to work with any of these chinese-ess90xx-boards..
I´ve ordered the zero w without a pre-soldered header and without a “hammer header”; u can get them so at pimoroni for example of about 13,50€ !! (incl.shipping)->https://shop.pimoroni.de/products/raspberry-pi-zero-w
(u can also get there a raspberry zero (without wlan) for 5,05€ !! (+3,50€ shipping)->https://shop.pimoroni.de/products/raspberry-pi-zero
but this self-soldering is IMO on this little raspberry a bit more complicated than normal, it was difficult to get an I2S-DAC-board on this to work..
heres again a little picture how to connect the I2S-lines: (the pin-layout on my zero w V1.1 is exactly the same as before (on a RPI3B for example) (because someone said there are different pin-layouts on different zero´s)
so, i have to use Volumio first to check out where the problem was (the soldering 😉 ), and i took the fresh 2.413 (https://volumio.org/get-started/)..
works absolutely fantastic here now with an ES9028Q2M (+Muses8920); almost no horrible pops+clicks at changing volume/tracks/audio-formats..
I use here now the “hifiberry-dac” settings; the “RPI-DAC” settings are working too (but be careful while using the hifiberry-dac settings->u have to set the target-bitrate to “24bit”(audio resampling on); else u get a horrible noise (but this was clear if u have followed this blog/read a little)..
as said, fantastic here now (i´ve originally wanted to use my old ES9023 for this; but got no sound at all (was this soldering problem 😉 )..
and by that u can use the raspberry zero W V1.1 also with a normal usb-cable on a normal usb2.0-port (500mA)..for me here its enough; hadnt to use the original Pi-power supply (2,5A or something)..
also, Dietpi is now at V6.12 and i still want to buy some green ES9038Q2M V1.07 and some OPA627 😉
greets for now 😉