Getting started

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Re: Getting started

Post by majenko » Sat May 27, 2017 10:30 pm

Without that jumper the DTR signal doesn't get through to reset the board and enter the bootloader. The first time around you're permanently in the bootloader since there is no sketch loaded, but once there is you need to reboot to get the bootloader to run.

It can be useful to disable though sometimes, so the board doesn't reset every time you open the serial port. Hence the jumper on JP11.
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