I know that the expansion board was plugged in correctly, because rim of the base is in the way of the tab on the expansion plug. That said, the Beagle Hospital has said “According to our diagnosis, the power rail VDD_3V3A has been found shorted to ground.”
I do have an Arduino board, but I don’t know what would be involved in testing the OSBo. If you don’t mind I would like to send the OSBo back to you for testing. (Am afraid to plug the BBB into it, again.)
Should I send it to:
Rayshobby
5 Valley Lane
Amherst, MA 01002
PS, I am using the OpenSprinkler v2.1u DIY and expansion board. They are working perfectly. Will keep the OSBo and BBB for experimenting and a possible future project.