Turbidity Sensor (optical)
by Generic
SKU: PSA-CMP-TURBIDITY
No reviews yetTypical India street price
₹250–₹500
Cloudiness of water via IR scatter/absorbance.
Interface: Analog + digital
Get notified if we start selling this part
Concept
LED + photodiode looking through a water gap.
A little theory
More particles → less / more scatter depending on geometry. Analog voltage maps roughly to NTU. In the classroom, treat Turbidity Sensor (optical) as a beginner part using Analog + digital. Typical India street price is about ₹250–₹500. Always verify voltage and pin labels on your exact module — silk screens vary across clones. Start with a datasheet or trusted learn guide, power the part correctly, share GND with the MCU, and test with a simple blink/read sketch before building the full project. Measure voltages with a multimeter when something fails, and keep actuator current off the MCU regulator.
How it works in a project
Dip the transparent pocket; analogRead; calibrate with dirty vs clean samples.
Classroom & project use
- River science
- Filter demo
- Washing-machine analog
Buying in India
Precautions
- Check 3.3 V MCU compatibility before connecting signal pins
- Share a common GND with the microcontroller
Specifications
| Output | AO + DO |
| Category | Sensors |
| Difficulty | Beginner |
| Voltage | 5V |
| Interface | Analog + digital |
Pinout
VCC | GND | AO (and DO if comparator module)
