PSRAM
This PSRAM module can only be installed in the S1 slot of OBJEX Link (the M0 slot closest to USBC).
PSRAM: LY68L6400SLIT

PSRAM Test

void setup() {
log_d("Total heap: %d", ESP.getHeapSize());
log_d("Free heap: %d", ESP.getFreeHeap());
log_d("Total PSRAM: %d", ESP.getPsramSize());
log_d("Free PSRAM: %d", ESP.getFreePsram());
}
void loop() {
// some code
}
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