Hi guys, Ive been able with some friends to ''build'' up a sensor device prototype for agricultural concerns: with the following specs: Arduino UNO board: http://arduino.cc/en/Main/arduinoBoardUno Base Shield: http://www.seeedstudio.com/wiki/Grove_-_Base_Shield_V1.3 GPRS Shield: GPRS Shield V2.0 …

Wich config and components to build a pH sensor device ?

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