# How to use an external CH340 USB to serial port board to download programs?

**URL:** <https://forum.amebaiot.com/t/how-to-use-an-external-ch340-usb-to-serial-port-board-to-download-programs/2618>\
**Category:** Hardware\
**Tags:** evb-amb82\
**Created:** [January 17, 2024, 5:05am UTC](https://forum.amebaiot.com/t/how-to-use-an-external-ch340-usb-to-serial-port-board-to-download-programs/2618 "2024-01-17T05:05:10Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![M-ichae-l](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/m-ichae-l/32/33_2.png) [@M-ichae-l](https://forum.amebaiot.com/u/M-ichae-l)\
**Post date:** [July 29, 2026, 3:40am UTC](https://forum.amebaiot.com/t/how-to-use-an-external-ch340-usb-to-serial-port-board-to-download-programs/2618/7 "2026-07-29T03:40:55Z")

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There is a auto download design for the board.  
[https://forum.amebaiot.com/t/sharing-ameba-family-is-now-supporting-auto-upload-features/795](https://forum.amebaiot.com/t/sharing-ameba-family-is-now-supporting-auto-upload-features/795)  
You may want to refer to hardware and software design.

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