New here ;-) got a question.
Using the Blinking LED tutorial for this test...
When i upload a patch tru USB, every thing works just fine.
When i disconnect the USB and than reconnect, after a few seconds the thepatch relaunches and works again fine to ;-)
Now if i put the jumper to external and hookup a 9 volt battery to the External Power Supply In, the power led goes on, the pin 13 led blinks a bit at boot, than nothing, the patch won't launch >
Now if i for a seccond plug the USB connector in and out, the board launches the patch and the led blinks on battery power just fine...
Am i missing something here? shouldnt the patch just launch on battery after a few seconds?
I have 2 arduinos and both do exactly the same...