current draw from The vin pin

Hey,

Im powering my arduino trough the Vin pin. is there any way to know how much current the Vin pin will draw?

ty.

Yes add up all the things you are powering externally from the pins and add 50mA for the rest of the gubbins.

Grumpy_Mike: Yes add up all the things you are powering

Or stick your ammeter in-between the supply and Vin and measure it.

Well if you do that then it changes from:-

is there any way to know how much current the Vin pin will draw?

to

is there any way to know how much current the Vin pin does draw?

Good point.....