In this project I try to measure the pH value with litmus paper, a color sensor and machine learning. The color sensor is connected to a ESP8266 and sends a color measurement to a preconfigured Azure Machine Learning web service.
I started of with collecting the color data of the comparison strips and two measurements with the litmus paper in a CSV file. This file is used to train the Azure Machine Learning algorithm.
After training and comparing different algorithms I did a final run and deployed it as a web service.