Link-tip: dimdim.gr->very, very interesting articles about 9028/38pro-chips, STM32F103C8T6/Arduino – Audio in general..

so, 😉
although i´ve got the feel that this site is well known by a lot of people, here again:
http://www.dimdim.gr
its mainly known for the TFT-Hifiduino code, but there are meanwhile very,very interesting articles about Audio-DIY; for example a very good tutorial to bring this STM32F103C8T6-“Bluepill” to work->
http://www.dimdim.gr/2017/01/stm32-microcontrollers/

(picture courtesy/copyright http://dimdim.gr)
or maybe this new article/post:”Arduino controlled Dual Mono AK4490 DAC (Part 2)”->
http://www.dimdim.gr/2017/12/arduino-controlled-dual-mono-ak4490-dac-part-2/
(picture courtesy/copyright http://dimdim.gr)

take a look there->very interesting (and basically the same “topics” as here 😉 )