CUL Device Flasher

Looking for the classic CUL (Atmel processor) flasher?

Instructions (ESP32)

1. Connect your ESP32-based device via USB.
2. Select the Product and Firmware Variant below.
3. Click INSTALL, select the serial port, and follow the dialog.

Note: If the JTAG/Serial port is missing, hold the boot button while plugging in.

Not sure which stick you have?

Connect it and read it out: product, serial number and the firmware available for it, plus a check that it is genuine busware hardware. Your firmware stays untouched.