TS-300B | High Quality Arduino Turbidity Sensor

TS-300B is a High Quality Turbidity Sensor with analog and digital interface for Arduino. This is the low cost Arduino Turbidity Sensor DIY Projects.

The turbidity of water refers to the degree of turbidity caused by suspended matter such as sediment, clay, organic matter, plankton and microorganisms contained in water. Industrial grade turbidity sensors or turbidimeters are expensive and not costly in electronics design; therefore, we have chosen a turbidity sensor that is widely used in household appliances washing machines and dishwashers.

Turbidity Sensor working Principle

The sensor uses the optical principle to comprehensively determine the turbidity by the transmittance and scattering rate in the solution. Inside the sensor is an infrared pair tube. When light passes through a certain amount of water, the amount of light transmitted depends on the degree of contamination of the water. The dirtier the water, the less light is transmitted. The light receiving end converts the transmitted light intensity into a corresponding current magnitude, and the transmitted light is large, and the current is large, and the transmitted light is small, and the current is small.

The turbidity sensor module converts the current signal output by the sensor into a voltage signal, and performs AD conversion data processing by the single chip microcomputer.

Where to Buy?

This Module is available with and without amplifire circuit in many online stores. Its price varies, but you can get only sensor for approximately $2.9 in most stores.

Check Price on Aliexpress | Banggood | Amazon.com |Amazon.in

My personal favrate for this product is Aliexpress Low Price + Wolrdwide Delivery [Select register shipping methods]

Function

The module has an analog and digital output interface. The analog quantity can be sampled by the microcontroller A/D converter to know the current water contamination. The digital quantity can be adjusted by the potentiometer on the module. When the turbidity reaches the set threshold, the D1 indicator will be illuminated, the sensor module output will change from high level to low level, and the microcontroller will monitor the level change.

Determine whether the turbidity of the water exceeds the standard, thus alerting or linking other equipment. The module is low in price, convenient to use, high in measurement accuracy, and can be used for measuring the degree of water pollution of washing machines, dishwashers, etc.; it can also be used for industrial site control, environmental sewage collection and other occasions requiring turbidity detection and control.

Specifications

Operating voltage: 5.00V DC
Working current: 40mA (MAX)
Response time: <500ms
Insulation resistance: 100MΩ (Min)
Output mode: analog output: 0~4.5V; digital output: high/low level signal (can adjust the potentiometer to select the corresponding threshold)
Operating temperature: -20 ° C ~ 90 ° C
Module size: 38.6mm*22.1mm
Sensor Interface: XH2.54 connector
Ratio Range (NTU): 0~1000±30
Infrared Emitting Diode: 940nm (Peak emission wavelength)
Photo Transistor: 880nm (Peak emission wavelength)

Applications

Washing machines,
Dishwashers,
industrial site control,
environmental sewage collection
Water quality monitoring using IOT
Oil quality monitoring

Features

Simple and convenient to use
Low Cost
Digital and analog output Mode

Pinout

Board Pin No	Sensor/Board Pin	Function
1	VCC	5V
2	GND	Ground
3	A0	Analog output Pin (0~4.5V)
4	D0	Digital Outputt (High/Low)

Turbidity Sensor Arduino Connection Diagram

To interface with TS-300B sensor with Arduino, you need to connect to its 3-pin by using jumper wire to arduino board as given in below table.

Pin No	Sensor Pin	Arduino Pin
1	VCC	Arduino 5V
2	GND	Arduino GND
3	A0	*Arduino A0 (Analog output mode)
4	D0	**Arduino D2 ( Digital output mode )

* A0 pin of sensor is connected to Arduino analog input pin : Analog output voltage 0~4.5V [ Analog output mode ] **D0 pin of sensor is connected to Arduino Digital input pin : Digital output High or Low [ Digital output mode ] An Arduino code is available to test the module in both cases.

The above schematic of the turbidity sensor is applicable to Arduino Uno connection. In the same way, you can connect this TS-300B module to other Arduino board such as Arduino Mega and Arduino Nano.

Arduino Code [ Analog output mode ]

Copy to Clipboard

Arduino Code [ Digital output mode]

Select a specific turbidity contrast solution and adjust the potentiometer knob to the position where the D1 indicator light is just lit (ie, the threshold of high and low levels) to complete the threshold setting. The DO port of the sensor module is connected to the I/O port of the MCU for output signal judgment or connected to an external drive circuit to drive other devices.

Copy to Clipboard

Conclusion

This is a super cool water quality sensor module that enable you to monitor the turbudity of any liquid using Arduino, without spending too much budget..

*sometimes it can be tricky while detecting the Forward gesture.

More great Projects using Turbidity Sensor

IoT based transformer health monitoring system

Transformer Health parameters to be monitored in these projects. TS-300B is used for transformer oil quality monitoring.

Water Quality Monitoring and Notification System

how clean the water is?. So projects monitors turbidity and temperature sends the information through SMS.