Installs Modbus Dongle Pro firmware

Connect the ESP device to your computer using a data transfer usb cable.

Select the firmware variant suitable for your device:

• P1 Modbus Dongle (1.2.1)
• P1 Modbus Dongle + LOGGING
• P1 Modbus Dongle HARDWARE v2 = RED LED
• P1 Modbus Dongle Sweden
• P1 Modbus Dongle emulate EM330
• P1 Modbus Dongle emulate SDM630
• P1 Modbus Dongle emulate DTSU666
• P1 Modbus Dongle CURRENT SWAP
• P1 Modbus Dongle KSO (1.2.1)

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