EN pin.

  • What is the EN pin supposed to be?

    On my ESP32C3 I measure VCC (3.3V)

    But on my ESP32S3 I measure 4.6V (with a 3.30V VCC, and 5.01V USB power.)

    The latter I find very strange?

  • So, the 4.6V is consistent with the schematic for the Stamp-S3, I see.

    The EN is connected to VIN, not VCC, via a diode, which drops it a little below the 5V from USB.

    This is different from the Stamp-C3, but I guess that's fine.