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System Design 

This Design part show us how to connect the Ph ,Temperature sensor to the Esp8266 and will practically explain how to measure the pH ,Temperature value of the Well water, and it will also explain whether the water under test is good or bad for health

NodeMCU ESP8266

NodeMCU is an open-source Lua based firmware and development board specially targeted for IoT based Applications. It includes firmware that runs on the ESP8266 Wi-Fi SoC from Espressif Systems, and hardware which is based on the ESP-12 module.

PH Sensor connected to Esp8266

Ph Sensor        Esp8266
      V+                         Vin
       GND                     GND
        Po                         A0
Circuit congregation

Temperature  Sensor connected to Esp8266

Circuit congregation
In Waterproof version the
wire colors represent pins,
Red=VCC
Black =GND
Yellow = Data
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