TRUSTECH PH Sensor Module for boards compatible with Ar-duino, AVR, PIC | Sensor Module Kit Electronic Components Electronic Hobby Kit

This pH Sensor is a scientific instrument used to indicate whether a solution is acidic or alkaline in nature. The sensor kit can detect the pH levels between 0 and 14pH. This pH sensor kit can be used in testing the nature of the soil and water quality. How to calibrate the pH sensor? The pH sensor can be calibrated by shorting the Vin and GND terminals at the probe side, thereby emulating a signal of pH 7. The onboard potentiometer near the BMC probe connector can then be adjusted to give an output of 2.5V between the Po and GND pin. Alternatively, you can also use analogRead() on the Ar-duino to calibrate it to 2.5V. For detailed instructions, please check out our pH sensor blog linked below. Few guidelines to use the sensor properly: - Make sure the sensor is properly calibrated. - Make sure the probe is dipped in deionised distilled water after each reading for at least a minute. - Make sure the sensor is given at least a few minutes to settle down in it's reading after dipping it in a solution. Here is the link to the PH Sensor Blog for a detailed explanation. PH Probe Sensor Pinout: TO – Temperature output DO – 3.3V Output (from ph limit pot) PO – PH analog output ==> Ar-duino A0 Gnd – Gnd for PH probe (can come from Ar-duino GND pin) ==> Ar-duino GND Gnd – Gnd for the board (can also come from Ar-duino GND pin) ==> Ar-duino GND VCC – 5V DC (can come from Ar-duino 5V pin) ==> Ar-duino 5V pin POT 1 – Analog reading offset (Nearest to BNC connector) POT 2 – PH limit setting Package Includes: pH Probe pH sensor board