Introduction

This is a photoelectric liquid level sensor that is operates using traditional optical principles. The advantages of this are a high sensitivity and no need for mechanical parts - meaning less calibration! The corrosion resistant probe is easily mounted and can handle high temperatures and high pressures. The sensor is equipped with an interface adapter for compatibility with the DFRobot "Gravity" interface.

Note: Avoid placing the sensor near bright lights or in direct sunlight as these can cause interference.

Specification

Board Overview

Liquid Level Sensor-FS-IR02
Liquid Level Sensor-FS-IR02
Liquid Level Sensor-FS-IR02 Pin Mappings

Num.

Name

Description

1 (Red)

GND

Probe_GND

2 (Yellow)

GND

Probe_GND

3 (Blue)

VCC

Probe_VCC

4 (Whitel)

OUT

Signal Output

Liquid Level Sensor-FS-IR02 convert board
Liquid Level Sensor-FS-IR02 convert board
Liquid Level Sensor-FS-IR02 Pin Mapping

Num.

Name

Description

Left_1

GND

Probe_GND

Left_2

GND

Probe_GND

Left_3

VCC

Probe_VCC

Left_4

IN

Signal Input

Right_1

OUT

Signal Output

Right_2

VCC

VCC

Right_3

GND

GND

Tutorial

Installation

SEN0205_Installation_1.jpg SEN0205_Installation_2.jpg SEN0205_Arduino_connection.png

Requirements

Sample Code

/***************************************************
* Liquid Level Sensor-FS-IR02
* ****************************************************
* This example is to get liquid level

* @author jackli(Jack.li@dfrobot.com)
* @version  V1.0
* @date  2016-1-30

* GNU Lesser General Public License.
* See <http://www.gnu.org/licenses/> for details.
* All above must be included in any redistribution
* ****************************************************/
int Liquid_level=0;
void setup() {
 Serial.begin(9600);
 pinMode(5,INPUT);
}

void loop() {
Liquid_level=digitalRead(5);
Serial.print("Liquid_level= ");Serial.println(Liquid_level,DEC);
delay(500);
}

Expected Results

When liquid comes in to contact with the sensor probe the microcontroller will output HIGH logic. When the liquid is not in contact with the probe the microcontroller will output LOW logic.

FAQ

Q&A Some general Arduino Problems/FAQ/Tips
A For any questions, advice or cool ideas to share, please visit the DFRobot Forum.

More Documents

Schematic Layout SVG file

DFshopping_car1.png Get Photoelectric Water / Liquid Level Sensor For Arduino from DFRobot Store or DFRobot Distributor.

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