The code below is configured for use with an Ethernet shield, which has an onboard SD slot. In the setup(), call SD.begin(), naming pin 4 as the CS pin. This pin varies depending on the make of shield or board.
In the loop(), a String is created to hold the information from three analog sensors. The code iterates through the sensors, adding their data to the string.
Next, the file on the SD card is opened by calling SD.open(). Once available, the data is written to the card when dataFile.println() is used. The file must be closed with dataFile.close() to save the information.
The code below is configured for use with an Ethernet shield, which has an onboard SD slot. In the setup(), call SD.begin(), naming pin 4 as the CS pin. This pin varies depending on the make of shield or board.In the loop(), a String is created to hold the information from three analog sensors. The code iterates through the sensors, adding their data to the string.Next, the file on the SD card is opened by calling SD.open(). Once available, the data is written to the card when dataFile.println() is used. The file must be closed with dataFile.close() to save the information.
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