Review on Sunfounder R3 + Ethernet Shield W5100 Compatible With Arduino Mega2560 Mega328 by Will Rahman

I had this piece of rock because I couldn't get it to work properly. No connection to Arduino. The pins were too long to fit, the solder under the board touched the USB connector on the Arduino board. Until I've bought some Arduino connectors to form the second layer, I manage to work through the example sketches one at a time and repeat the tests. Before this HACK board, it wasn't very reliable. I'm still testing reliability as sometimes the board worked, sometimes not. Today is the first day I've been able to program Sketch and run it with an IP and a connection. There were days when I didn't get an IP. And if I code this manually, there is now an outer join. After trying different approaches I was able to use DHCP, NTP, web server and SD. Tomorrow I'll try my own application combining the thumbnails from the example to upload a web-enabled logger to a second database. Fingers crossed!