Datasheet

Manually bootloading

If you ever get in a 'weird' spot with the bootloader, or you have uploaded code that crashes

and doesn't auto-reboot into the bootloader, click the RST button twice (like a double-click)to

get back into the bootloader.

The red LED will pulse, so you know that its in bootloader mode.

Once it is in bootloader mode, you can select the newly created COM/Serial port and re-try

uploading.

You may need to go back and reselect the 'normal' USB serial port next time you want to use

the normal upload.