Arduino nano old-bootloader USB driver doesn't attach on Windows7

Development Tools IDE 1.x
1

test install 1.8.19-windows and 1.6.13-windows.
both software installed each.

Arduino nano old-bootloader USB driver doesn't attach on Windows7

run arduino ide and setup menu "tool"->board, "tool"->processor, "tool"->serial port.
but not found USB serial port.

lview property of control panel->device and printer->unknown device.
it's usb device.

please test.
thanks.

2

check the board type.
It's CH340 equipment type of arduino nano compatible.
install the CH340 driver, then attached USB serial port.

thanks.

1 Like
3

There is no relationship between the bootloader and the USB. The bootloader runs on the main processor (328P in your case), the USB connectivity is provided by a dedicated chip (original Nanos use a FTDI TTL-to-USB converter, clones often use the CH340 as in your case).

If your topic is solved, you can click the solution button under the most useful post (your reply in this case) to let others know.

4

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