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Topic: Questions about external power and code download (Read 288 times) previous topic - next topic

sharonf

Hi,

1. is there a way to write a code on some sort of external memory to be attached to the arduino, and make it download the code and operate the arduino code in a push of a button?
2. is there a way to supply the 5v for the arduino not using a laptop but an external power source?


I would love to see detailed examples

Thanks!

johnwasser


1. is there a way to write a code on some sort of external memory to be attached to the arduino, and make it download the code and operate the arduino code in a push of a button?

Yes. http://www.gammon.com.au/forum/?id=11638


2. is there a way to supply the 5v for the arduino not using a laptop but an external power source?

Yes.  Connect regulated +5V to the +5V pin OR connect unregulated 7V to 12V to the Vin pin or the power jack (center pin is +).  In both cases the negative side of the power supply goes to Gnd (or the sleeve of the power jack).
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