Detection and transmission of pH from food substances using IoT

Abstract

Bacterial growth in foods can be prevented by applying various controls to the food product, including adjusting the acidity of the food. Research has indicated that a pH level of 4.6 or lower will be effective to prevent most bacterial growth. The pH detection system has been proposed in order to verify pH level through experimental calibrated pH meter(potentiometric). pH is a measure of acidity or alkalinity of a solution, the pH scale ranges from 0 to 14. The paper presents development of signal conditioning circuit with integrated sensor using NodeMcu through IoT framework.