Agriculture is at the center of all economic
activity since it is the link between agricultural expansion
and economic riches. New and developing technology has
the potential to constantly increase the productivity,
profitability, and quality of our key agricultural systems.
Hydroponics is a method of planting or producing plants
that do not require soil and instead relies on water,
nutrients, and oxygen. It requires accuracy, patience, and
constant monitoring, all of which are difficult to do. The
objective of this research is to create a monitoring tool for
the automated flow of nutrients in hydroponic plants using
an Arduino microcontroller and a smartphone. The
HydroTech can detect sensor data from four parameters:
temperature, pH, turbidity, and electrical conductivity,
and simultaneously display its reading in an application.
The device has an ESP32, which can transport data over
WIFI and Bluetooth. Two weeks of lettuce testing revealed
that the sensors and application worked well. The
equipment was practical and useful since it met the
specifications. The researcher suggests utilizing digital
sensors because the device employs analog sensors and
reading depends totally on the type of sensor used.
Keywords : Arduino Microcontroller, Water Quality Monitoring, Developmental Design, Smart Agriculture, Internet-Of-Things.