The arduino draws very little power, probably less than 100mA, any
USB bus should power it fine. A short circuit will shutdown any USB
bus. It could shutdown a poorly implemented USB bus forever.
The problem you describe sounds a lot like an intermittent short
circuit to me. It could also be the motor drawing too much current
under certain conditions. If running a motor, I'd run an external
power supply.
.hc
On Oct 16, 2006, at 10:59 PM, David NG McCallum wrote:
Drawing too much power might have had something to do with a motor I was running. But I had no problem with the motor using my own arduino code.
The situation with mis-wiring the pot was independent of the comport object freezing my kbd and mouse, though. The kbd and mouse froze when everything was wired up fine (which worked w/ my own arduino code, just not with comport).
It's now mysteriously worked, the last time I tried it, but the wiring was all the same as before. So I have no idea, now that it's not really reproducible...
D
On 16/10/06, nick weldin nick@padarts.idps.co.uk wrote:
If drawing to much power from the usb socket is the problem then you need to provide power for the arduino either by going through a powered hub, or if you are drawing to much power on the arduino to run it off usb switch the power jumper over on the board and provide power for the electronics on it seperately, rather than drawing it from the usb bus.
HTH
Nick
Hi HC,
I've had the problem of the USB bus being killed because to much
power
was drawn, but it was because I plugged a pot into the wrong ports.
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