Ph Sensor Calibration Code

This code is very useful for beginner in arduino to calibrate ph sensor

To calibrate a pH sensor with an Arduino or ESP32, you need to map the sensor’s analog voltage output to actual pH values using standard buffer solutions (e.g., pH 4.00, pH 7.00, and pH 10.00). Here’s a simple calibration and reading code for a typical analog pH sensor like the Gravity Analog pH Sensor from DFRobot or China Ph sensor