Hydroponics Farming Control EC and pH via Mobile 24/7

Last updated: 26 Mar 2026

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Hydroponics, or soil-less farming, is currently one of the most popular agricultural methods because it allows for excellent yield quality control, requires less space, and reduces the risk of soil-borne diseases. However, behind those beautiful and crispy salad greens, farmers must provide close care—especially regarding "water quality and nutrients."

If you own a hydroponic farm, you probably know what the most headache-inducing problem is. The answer is "having to constantly walk around measuring water values and manually mixing fertilizers." Today, www.epower.co.th will introduce you to a solution that will make farmers' lives easier by transforming a regular farm into a Smart Farm where you can control everything via a single mobile device.

The Pain Points of Hydroponic Farmers

In deep water culture (DWC) or recirculating systems, plant growth relies on two main factors in the water:

EC (Electrical Conductivity): The concentration of fertilizer (Nutrients A and B).
pH (Potential of Hydrogen): The optimal acidity/alkalinity level helps plant roots absorb nutrients efficiently (usually around 5.8 - 6.5).

Commonly encountered problems:

Wasted Time and Labor: Requires a worker to walk around dipping a manual meter into each pond multiple times a day.
Human Error: Mixing the wrong proportions of fertilizer, adding too much (causing root burn), or adding too little (causing stunted growth).
Inability to Monitor 24/7: If heavy rain falls and dilutes the EC in the pond during the night, the plants will immediately lack essential nutrients.

A Sustainable Solution: Automatic EC and pH Control with PLC and IoT

To solve these problems, Industrial Automation technology is applied to create an Automated Hydroponics System. The core of this solution is the seamless collaboration between hardware and software, as follows:

1. Industrial Sensors Install EC and pH sensors directly into the water reservoir to act as the "eyes" monitoring water values in real-time, 24/7. E-power utilizes industrial-grade sensors that are highly accurate and resistant to corrosion.

2. PLC (Programmable Logic Controller) as the Brain Once the sensors read the values, they send the data to a smart PLC (such as the EC201S LicOS model), which is programmed with specific control logic.

How it works: If the PLC detects that the EC value in the pond drops below the set threshold (because plants consumed the nutrients or rainwater diluted it), the PLC will send an electrical signal commanding the "Dosing Pump" to automatically draw nutrients A and B into the pond. It will command the pump to stop immediately when the EC returns to the perfect level.

3. Mobile Monitoring and Control with Ecloud IoT

The standout feature that makes this a true Smart Farm is connecting all devices to the Ecloud IoT platform.

Remote Monitoring: Farm owners can view EC, pH, and water temperature values via a Dashboard on their smartphones anytime, anywhere.

Smart Alerts: Set the system to send instant notifications to your LINE or Telegram app in case of emergencies, such as a broken water pump or critically abnormal pH levels.

Data Logger: The system automatically records historical water data into Google Sheets for future analysis and optimization of planting cycles.

Why Choose the Automation System from E-Power Service?

A good Smart Farm system is not just about having a beautiful application; "the hardware and power supply must be stable." If the electrical system fails or the PLC crashes, the entire farm could come to a halt.

At E-Power Service Co., Ltd., we are experts in Industrial Automation systems. We offer comprehensive equipment including:

International Standard PLCs (CODESYS) that process data accurately and stably.
IoT Platform (Ecloud IoT) that is easy to use with no monthly fees.
Control Panels and backup power systems that meet strict industrial standards.
If you are ready to overcome old limitations, reduce trivial daily tasks, and increase your profits from hydroponic farming with a 100% automated control system...