>>2921833
sup anons, i'm back
so i made some changes
do you think it's reasonable to use mosfets to handle some PMIC logic, instead of wiring stuff to the ESP?

the mosfet on the PMIC is actually wrong in this pic..
ENC1 should be high when in standby and low when charging, i'll fix this later

what do you think about the demultiplexer i marked as dnp? is it okay to connect it to the MCP (GPIO expander)?
it would save a lot of GPIOs, also i'm not a fan of matrices lol

I placed a 32.768 MHz oscillator for the ESP, it may come handy..
though I don't know whether it's better to have an IC oscillator or a crystal and other components.. why would one choose something over another?

I updated the PCM, i read the datasheets more carefully
there i put also two oscillators.. for covering the whole sampling frequencies
a PCM register will need to be configured to enable them at the right time.. I didn't investigate much

the OPA1622 is still as before

i think i am done with the display circuitry

i need to finish the SD and the USB stuff

PS picrel is now bigger