Web Flasher

Flash or Find your device using next options:

1. Plug in your ESP32 to a USB port.
2. Hit "Install" and select the correct COM port.
3. Get OpenDTU firmware installed and connected in less than 3 minutes!

Select your product

• ESP32
• ESP32S3
• ESP32S3 with integrated USB connection

INSTALL Use Chrome Desktop Not allowed to use this on HTTP!

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Troubleshooting

• It might be required to manually enter bootloader mode before attempting to flash the ESP32 using the WebFlasher.
• Try holding the BOOT button on your board until you see the WebFlasher is erasing the flash memory and actually installing the firmware. This can help when a reset is performed in the preparation step, as holding the BOOT button ensures that the ESP32 restarts into bootloader mode.