FDxboot_1.61 - 3rd and 4th way to do auto upload - rts dtr Serial AVR109 bootloader
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Published on ● Video Link: https://www.youtube.com/watch?v=kIvGqQ-ok4k
AVR109 bootloader doesn't send a signal that is required to reset the MCU so it can re-enter bootloader mode for each upload. There are 2 already known ways to do that, and now 2 more have been added to the list; Each of these methods has its own pros' and cons';