I was really happy to find out about the ShieldBuddy. It sounded perfect for my project which will also require an Ethernet shield. After the board arrived, I tested two Ethernet shields (W5100 and W5500) with an Arduino Mega. Both shields worked and were able to get an IP.
However, BOTH shields are not working on the ShieldBuddy! The SB fails to get an IP (all leds on the two shields are on). Also, the SD card examples from the ShieldBuddy do not work as the SB does not recognize the SD hardware. I am sure is not a power issue as the SB is powered by an external 9V power supply.
I have written to Aurex but have not heard back. I have found their technical support to be regrettably rather poor.
Before returning the board , I would appreciate the community's input on how to test if the board came with a defective SPI bus which (in my limited knowledge) is the remaining reason explaining the problem?
Also, can the community share with me what specific model/brand of an Ethernet Shield they successfully used with the SB?