Rectronx Circuits
Components

Analog pH Sensor Kit

pH probe and interface board for aquaculture and water quality FYP projects.

Water Quality Sensor4.5/5RM45-RM120Advanced
ArduinoESP32 with safe ADC scaling
Analog pH Sensor Kit electronics module illustration

AI Ready Overview

Quick Summary

pH Sensor is a water quality sensor commonly used in FYP and embedded projects. It is best for water quality monitoring and aquaculture, with wiring and testing planned around Arduino, ESP32 with safe ADC scaling.

Difficulty

Advanced

Time Required

2-4 weeks for wiring, library setup, calibration, integration and reliable demo testing

Cost

RM45-RM120 module range in Malaysia; full project cost depends on scope.

Components

pH Sensor, Arduino, ESP32 with safe ADC scaling

Overview

What is pH Sensor?

Analog pH sensor kits estimate acidity/alkalinity of water. They are popular in aquaculture, river monitoring and smart farming projects but require calibration.

Engineering Reference

Quick Specs

Operating Voltage5V
InterfaceAnalog
DifficultyAdvanced
Typical Malaysia PriceRM45-RM120
Best ForWater quality monitoring, Aquaculture

Real Usage Notes

Suitable / Not Suitable

Suitable for

  • Water quality monitoring
  • Aquaculture
  • Hydroponics

Not suitable for

  • No-calibration projects
  • Dry storage of probe
  • Certified lab measurement

Build Planning

Difficulty

pH Sensor is rated Advanced. Plan around 2-4 weeks for wiring, library setup, calibration, integration and reliable demo testingdepending on wiring, libraries, calibration, dashboard/app integration and testing evidence.

Build Planning

Time Required

2-4 weeks for wiring, library setup, calibration, integration and reliable demo testing

Malaysia Price Guidance

Cost

Typical module price range: RM45-RM120. This is component guidance only; a complete FYP cost depends on controller, sensors, casing, display, app/dashboard, documentation and timeline.

Connections

Pinout

VCC

Power input. Check whether the module expects 5V before wiring.

GND

Common ground with the controller and external supply.

Analog

Main Analog connection used by the module.

IO

Additional signal pins depend on the exact module variant.

Platform Notes

Wiring Guides

pH Sensor with Arduino / ESP32

Connect power, ground and the Analog signal lines. Use level shifting when a 5V module connects to a 3.3V controller.

pH Sensor VCC5V or module-rated supply
pH Sensor GNDController GND
Signal pinsAnalog

Fix Common Problems

Troubleshooting

Check wiring against the pinout before debugging code.
Use a stable power supply and common ground between modules.
Test the component with a simple example sketch before adding dashboard, app or database features.
Calibrate probes and protect electronics from wet-area splashes before final demo.

Troubleshooting

Common Mistakes

No buffer calibration
Drying the probe
Using noisy ADC readings without averaging

FYP Ideas Using pH Sensor

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Student Questions

FAQ

Is pH Sensor good for FYP projects?

Yes, pH Sensor is suitable for FYP work when the project matches its limits: Water quality monitoring and Aquaculture.

What is the most common pH Sensor mistake?

No buffer calibration