I'm a (just) retired embedded engineer (hardware design and some coding e.g. drivers) but just starting on Teensy. I have this idea for a looper based on the Teensy 4.1 but, to have useful loop storage, it would have to store data on the micro SD card. I have looked through the audio forum and found 1 project that uses the SD card for real time capture so I'm assuming it's possible. I aim to end up designing a PCB that would include the audio Codec ICs but any pointers on what hardware, software, or existing projects, or shield PCBs I could start off testing on would be welcome.
I'll post the design here as I get it going.
I'll post the design here as I get it going.