Error message when running Hello World test

[ceboothe]

I have installed Arduino 1.5.6-r2 on a Windows 7 OS.

I have copied the Hello World (along with the motor test code) and receive the following error message in the Ardunio dialog box...

avrdude: verification error, first mismatch at byte 0x0000
0x0c != 0x62
avrdude: verification error; content mismatch

I have found posts about this error, but no fix (at least at my knowledge level).

[jasea]

Hi ceboothe, yes you are correct in that there are quite a few posts in various fora, most relate to the Arduino Uno. The most common possibility is that the boot loader is corrupted. But the Stem Board is Arduino-compatable and not an Arduino. I would suggest that you contact STEM Support, if they don't respond to your post, for assistance with this problem.

[Mel]

Thanks jasea! You are right, this is sometimes an issue with Arduinos as well.

ceboothe (and any others experiencing this issue), could you please check on the following? We are also looking into this further on our end.

In the meantime, please take a look at Appendix A to go over the following checks:
1) Have you checked if your driver has been installed?
2) When you connect your STEM board, were you able to see it under your Devices under the Control Panel? If not, you will need to install the drivers.
3) If the driver has been installed and you are able to see the STEM board, then from the Arduino IDE you should be able to check under "Tools" the correct "Board" --> Arduino Uno and the "Serial Port" which should correspond to the correct number (ex: COM4, COM11, etc.). This port should match the one you saw under the Devices on your Control Panel.

Please let me know if any of the three options help solve the problem! In the meantime, we will definitely continue to look into this error message to determine the best way to fix it.

Thank you for your patience and understanding!