Arduino library for Gravity: Analog pH Sensor / Meter Kit V2, SKU: SEN0161-V2 Chapter 3 code_Project_72 The second part 2 of "The Arduino World Book" code_Project_72 code_Project_72 By:Farkad Adnan ...

PH Limit: This potentiometer is to sets a limit value of the pH sensor circuit that causes the red LED to light up and the Do pin signal to turn ON. Connect Po to Analog input A0 on Arduino, and G to ...

Arduino Soil Moisture Sensor Circuit – Connection Diagram Now that we have a complete understanding of how a Soil Moisture sensor works, we can connect all the required wires to the Arduino UNO board.

Unplanned use of fertilizers leads to inferior quality of crops. Excess of one nutrient can make it difficult for the plant to absorb the other nutrients. To deal with this problem, the quality of ...