I'm trying to work with an Arduino Mega and an Ethernet+SD shield, but I'm having some troubles. I'm going to write them all here so in case someone could help me about.
After doing several writings, I can't read anything from my microsd card. It's like it would be dead. I'm going to try to read it by an adapter. Is there someone with the same problem?
Another one, I make a program with a web server which makes some measurements and write one by one in a file, so a client could read these values from a browser. But when I'm trying to write to a file continously, I mean: I opened a file, write on it, close it, and after a while, I repeat the operation. I want it adds lines, one after one. But even using the example, I could make it right. It always overwrite the file and only shows the last measurements done. How can I solve this?
The last one, I was trying to did the measurement with A0 and A1 pines, but I was surprise that in Ethernet+SD shield this pins are at high value (5V), instead of low, so I couldn't do any measurements. How can this be possible??
Any answer you have, please don't hesitate to post it.