Hello,

on AI-Cam start SD with
void initSDCard( void ) {

// if( !SD_MMC.begin() ) { // fast 4bit mode
if( !SD_MMC.begin( "/sdcard", true ) ) { // slow 1bit mode
DBG_OUTPUT_PORT.println( "SD card init failed" );
return;
}
}

now you should have two more IOs free.

--
Mozz