Did I do it wrong? I don't know what is the issue here but the mega 2560 chip is working and reports "The Right Stuff" as evidenced by Mr Gammons help and sketch (Thank you Nick again for your kind help especially after my display of bad manners) So I am at a loss until I can replace the defective part (s) or connect a regular serial port to the Mega. I did go into the device manager and remove the non-working instance of the USB Port (the one with the yellow ! label. Just wait until Win 8 comes out and don’t even ask how windows can’t handle keeping track of USB port assignments… Sorry for the formatting, I used Microsoft Word.Įnjoy and please feel free to update any of the above and post things you may find helpful to others.īutch, is this a 'new' install of the IDE/Mega 2560 BOARD or just a working IDE installation (in my case a Uno R3) not working on the new Iteaduino board? the issue I have is similar although I tried as per instructions (for a new install) to "Re-Install" the driver with no success. This is what windows calls plug and play.
To check, go back to the Arduino IDE and under tools, you should now be able to select a com port. You should now be back at the device manager and the yellow exclamation point should now be gone and you are done dude. After about a one minute wait, Windows will take credit for successfully updating your driver even though it could not find it by itself! About halfway through the wait you will hear a USB plug in sound. You may now curse them and click “Install anyway…” Microsoft will now try to stop you from installing this driver. You should now be back in the “Update Driver software- arduino mega 2560” dialog. You should now be back in the “Install from disk” dialog box. Browse to Arduino>drivers>Arduino MEGA 2560 REV3 then select it and click the open button. Under model, click “Generic….” Then click “Have disk”. Select “Multifunction adapters” then click next. Right click the Atmega icon and select “update driver software”. 
Look between Network adapters and Processors. There will be a yellow exclamation point ( ! ) overlaying the icon.
Using control panel > hardware and sound > view devices and printers > device manager, look for “other devices” and under it “Arduino MEGA 2560”. In the IDE under tools, if the serial port is grayed out then you probably need to install a USB driver for this board. If you have success with other configurations please share your results.) (Tested on Win 7 HP 64 bit, Arduino IDE 1.0, board ver. If your Iteaduino MEGA 2560 is not recognized on a USB port, try the following:
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