Reply To: Arduino datalogger

Different types of SDI12 sensors have different commands for taking measurements and retrieving data from the sensor, so the Arduino code has to be modified for whatever specific sensor you’re using. Plus if you’re using multiple sensors, they each have to be pre-programmed with a unique address, which you then call separately in the Arduino code.

What type of sensors are you using? And did you modify any the example code provided with the SDI12 library?