![]() On many development boards with built-in USB/Serial, esptool.py can automatically reset the board into bootloader mode. Information about ESP32 strapping pins can also be found in the ESP32 Datasheet, section “Strapping Pins”. ![]() If you want to connect a switch button to enter the boot mode, this has to be a strong pull-down. ![]() The ESP32 has a 45k ohm internal pull-up/pull-down resistor at GPIO0 (and other pins).
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