Using an Arduino NANO or just about any Arduino you can create a very accurate PH & EC/TDS meter for hydroponic and gardening. Connect your Arduino to your computer, start the Arduino IDE and flash ...

Bill of Material TDS Meter – Arduino Code Most TDS meters have an analog pin that reads the analog value and converts it into TDS reading in Parts Per Million (ppm). There are many TDS sensors for ...

A TDS meter measures the number of total dissolved solids like salts, minerals, and metals in the water. As the number of dissolved solids in the water increases, the conductivity of the water ...

Our objective in this study was, therefore, to develop and test an affordable wireless communication system for monitoring soil moisture using Decagon EC-5 sensors. The new system uses ...

TDS automatic data collection was designed based on a sensor and Arduino board using red laser beam communication. The sensor was calibrated by measuring 4 different water solutions using a commercial ...

The system is designed with a control center using the Arduino UNO R3 board. The system is equipped with GP2Y0A21 proximity sensor as a water level detector, TDS sensor as a detector of electrical ...