The pH of a solution can be determined using a pH meter or a pH indicator solution. The module utilises Hydrogen-ion activity also known as the “proton activity” for measuring pH of the liquid. This ...

Connect the pH sensor module to the Arduino: VCC to 5V; GND to GND; AO (Analog Output) to A0 (Analog Pin 0) If using an LCD display, connect it according to its datasheet or use an I2C LCD for easier ...

This Arduino project reads pH values from a pH sensor and sends the data to the ThingSpeak IoT platform via Wi-Fi. The project utilizes an analog pH sensor connected to analog pin A0 and communicates ...

An ASK based RF receiver module with 433MHz carrier frequency is used to demodulate and receive data transmitted by sensor node’s RF transmitter module. Microcontroller. Arduino Nano board is used as ...

The pH meter project features open software and open hardware design circuit which can be connected with an electrode pH sensor made of glass. The device is termed as pHduino which can operate by ...

As mentioned earlier, this circuit takes its power directly from the Arduino UNO R4 board’s 5 V and GND pins. The pH-detection module’s pin P0 was connected to the Arduino board’s analog pin A0. This ...

The hardware is consists of an Arduino microcontroller (here an Arduino Uno R3) and a pre-wired soil moisture sensor module. The soil moisture sensor module , built around the LM393 comparator, gives ...