TDS Sensor Module
Total dissolved solids sensor for water quality and aquaculture demos.
AI Ready Overview
Quick Summary
TDS Sensor is a water quality sensor commonly used in FYP and embedded projects. It is best for aquaculture monitoring and water quality dashboard, with wiring and testing planned around Arduino, ESP32.
Difficulty
Intermediate
Time Required
1-2 weeks for wiring, basic code, platform integration and repeated test readings
Cost
RM25-RM70 module range in Malaysia; full project cost depends on scope.
Components
TDS Sensor, Arduino, ESP32
Overview
What is TDS Sensor?
TDS sensors estimate dissolved solids in water. They are useful in aquaculture and water quality FYP projects, but readings depend on calibration and temperature.
Engineering Reference
Quick Specs
| Operating Voltage | 3.3V / 5V |
|---|---|
| Interface | Analog |
| Difficulty | Intermediate |
| Typical Malaysia Price | RM25-RM70 |
| Best For | Aquaculture monitoring, Water quality dashboard |
Real Usage Notes
Suitable / Not Suitable
Suitable for
- ✓ Aquaculture monitoring
- ✓ Water quality dashboard
- ✓ Hydroponic nutrient trend
Not suitable for
- ✕ Exact chemical analysis
- ✕ No calibration
- ✕ Dirty probes
Build Planning
Difficulty
TDS Sensor is rated Intermediate. Plan around 1-2 weeks for wiring, basic code, platform integration and repeated test readingsdepending on wiring, libraries, calibration, dashboard/app integration and testing evidence.
Build Planning
Time Required
1-2 weeks for wiring, basic code, platform integration and repeated test readings
Malaysia Price Guidance
Cost
Typical module price range: RM25-RM70. 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 3.3V or 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
TDS 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.
| TDS Sensor VCC | 5V or module-rated supply |
|---|---|
| TDS Sensor GND | Controller GND |
| Signal pins | Analog |
Fix Common Problems
Troubleshooting
Troubleshooting
Common Mistakes
FYP Ideas Using TDS Sensor
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Compare Options
Alternative Components
Student Questions
FAQ
Is TDS Sensor good for FYP projects?
Yes, TDS Sensor is suitable for FYP work when the project matches its limits: Aquaculture monitoring and Water quality dashboard.
What is the most common TDS Sensor mistake?
Confusing TDS with pH