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dmesg | tail
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lsusb
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dmesg | tail
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lsusb
You're right; I just checked the pinout myself and they both go to ground. I'm going to try to use it on Windows and see if it works there.lou wrote:From the photo, those two pins appear to go to the same PCB trace. As such, bridging between them is inconsequential.tim.bounceback wrote:two pins (third and fourth from the right) on the FTDI chip seem to be bridged
Yeah, it sort of does. Have you tried tech support with whoever you bought it from? Trying it on Windows was an excellent idea on your part.tim.bounceback wrote:OK, just tried it on Windows and it's the same deal - the green light comes on, but the new hardware wizard thing doesn't come up and Device Manager doen't see anything either - I know that my USB ports work fine, too. To me, this almost definitely looks like an issue with the Arduino...
I bought it from Adafruit, so I'm emailing ladyada right now...lou wrote:Yeah, it sort of does. Have you tried tech support with whoever you bought it from?tim.bounceback wrote:OK, just tried it on Windows and it's the same deal - the green light comes on, but the new hardware wizard thing doesn't come up and Device Manager doen't see anything either - I know that my USB ports work fine, too. To me, this almost definitely looks like an issue with the Arduino...
I don't have onelou wrote:Grasping at straws; have you tried it both with and without a USB hub?
I'll dig around for something like that, dunno if I have one...lu wrote:If you have another device that emulates a serial port (I have a GPS receiver like that), and it works on the same system, hub, cable, etc., that's also something to tell tech support. Along with the results of your Windows test.
Maybe, but I'm pretty sure that it just uses the USB by default and switches to external power if USB power isn't available - as far as I know, there is now way to switch it - besides, I'm pretty sure the green light indicates it is selected properly, but who knows?lou wrote:One other thing, and I'm not familiar enough with Arduino to be authoritative, but I understand that the power source for the board is selectable between USB and external power. The green light being on might mean that that is already selected properly, but if it doesn't, that could theoretically cause a problem such as this.
I have so many boards in my head to varying degrees. I might have been thinking of a different one. Whichever one I was thinking of has the voltage selectable by a jumper.tim.bounceback wrote:Maybe, but I'm pretty sure that it just uses the USB by default and switches to external power if USB power isn't available - as far as I know, there is now way to switch it - besides, I'm pretty sure the green light indicates it is selected properly, but who knows?lou wrote:One other thing, and I'm not familiar enough with Arduino to be authoritative, but I understand that the power source for the board is selectable between USB and external power. The green light being on might mean that that is already selected properly, but if it doesn't, that could theoretically cause a problem such as this.
There very much definitely is a way to select the power source; at least on the Diecimila that you have. There is a set of three pins next to the USB port labeled "PWR SEL" - put a jumper across the two closest to the USB port for USB power, or across the two closest to the external power plug for external power.tim.bounceback wrote:Maybe, but I'm pretty sure that it just uses the USB by default and switches to external power if USB power isn't available - as far as I know, there is now way to switch it - besides, I'm pretty sure the green light indicates it is selected properly, but who knows?
I've just looked up the schematic, and if the PWR LED is lit, the jumper is definitely set correctly.trialex wrote:Not sayin' this is your problem though...