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.