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The product is intended for specialists and requires qualified and authorized personnel. The product does not include assembly/use instructions . Putting the product into operation by unqualified persons leads to the loss of the warranty according to the Terms and Conditions on the site.
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Line sensor module, QRE1113, IR, 5V
The IR reflective sensor module is ideal for line tracking and black and white contrast detection in robotics projects. It integrates an IR LED and a phototransistor with on-board conditioning for digital output DO, operates at 5V and connects quickly via a 3-pin header. The compact dimensions and mounting hole make it easy to mount, optimal for small distances up to 3 mm.
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The QRE1113 module is an IR reflection sensor, ideal for robotics and automation projects where you need to detect lines or contrast differences between surfaces.
It integrates an infrared LED and a phototransistor, and the signal is conditioned on the board so you can quickly obtain a digital output compatible with microcontrollers.
It detects light-colored surfaces that reflect more and dark-colored surfaces that reflect less very well, making it suitable for line followers, counting objects at short distance, and edge detection.
The board has a 3-pin connector, compact dimensions, and a mounting hole for easy installation.
Specifications:
Supply voltage: 5VDC
Model: QRE1113
Sensor type: infrared IR reflection
Current consumption: approximately 25mA
Output: digital DO
Compatibility: digital inputs without ADC, including 3.3V and 5V depending on the development board
Recommended detection distance: maximum 3 mm
Connector: 3 pins 2.54 mm pitch
Mounting: mounting hole on the board
Board dimensions: 8 x 14 mm
Pinout:
| Pin | Marking on board | Description | Typical connection |
|---|---|---|---|
| 1 | VCC | Module power supply | 5V, sometimes also works at 3.3V |
| 2 | OUT | Digital output | MCU digital pin, HIGH/LOW output |
| 3 | GND | Ground | GND to microcontroller |
Usage:
Connect the pins as follows:
| QRE1113 Module | Arduino UNO/Nano | Arduino MEGA | Notes |
|---|---|---|---|
| VCC | 5V | 5V | Some variants also work at 3.3V, 5V recommended for stable signal |
| GND | GND | GND | Common ground mandatory |
| OUT | D2, D3, D4 etc | D2, D3, D4 etc | Any digital pin works, for interrupts use D2 or D3 on UNO |
Mount the sensor as close as possible to the surface, ideally up to 3 mm, and maintain a constant distance for stable results
For line following:
Calibrate the threshold in code by reading OUT on white and black, position the sensor perpendicular to the surface.
For object detection at short distance:
Point the sensor towards the passing area, use software debounce to avoid multiple triggers.
If the signal is unstable:
Check strong ambient lighting, shield the sensor from direct light and adjust the distance until the switching becomes consistent.
Produs destinat utilizarii in proiecte electronice, automatizari, prototipare, educatie si cercetare.
Produsul trebuie utilizat numai conform specificatiilor tehnice mentionate in descriere si/sau in documentatia produsului.
Avertismente generale de siguranta:
Nu utilizati produsul la tensiuni, curenti sau temperaturi peste valorile specificate.
Montajul si conectarea trebuie realizate de persoane cu cunostinte tehnice minime in domeniul electric/electronic.
Evitati scurtcircuitele, inversarea polaritatii si conectarea gresita a alimentarii.
Nu lasati produsul alimentat nesupravegheat in timpul testelor.
Produsul nu este jucarie si nu este destinat copiilor.
Pentru modulele electronice, se recomanda utilizarea in carcase, panouri sau montaje protejate, dupa caz.
Identificare produs:
Denumirea produsului, codul/SKU-ul si caracteristicile tehnice sunt mentionate in pagina produsului si/sau pe eticheta ambalajului.
Producator / Importator / Distribuitor:
Sigmanortec S.R.L.
Calea Bucuresti nr. 9, Targu Jiu, Gorj, Romania
E-mail: [email protected]
Website: www.sigmanortec.ro
Persoana responsabila in UE:
Sigmanortec S.R.L.
Calea Bucuresti nr. 9, Targu Jiu, Gorj, Romania
E-mail: [email protected]
Documentatie si siguranta:
Pentru informatii suplimentare, fise tehnice, declaratii de conformitate sau instructiuni, ne puteti contacta la [email protected].
// QRE1113 - Arduino example
// Connections
// VCC -> 5V
// GND -> GND
// OUT -> D2
const int PIN_SENSOR = 2;
void setup() {
Serial.begin(9600);
pinMode(PIN_SENSOR, INPUT);
// If your module has open-collector output or unstable signal, try:
// pinMode(PIN_SENSOR, INPUT_PULLUP);
}
void loop() {
int val = digitalRead(PIN_SENSOR); // 0 or 1
Serial.print("OUT: ");
Serial.println(val);
// Typical interpretation for line follower
// Depending on the module, the logic may be reversed
// (0 on white, 1 on black)
if (val == HIGH) {
Serial.println("Detection: more reflective surface or threshold exceeded");
} else {
Serial.println("Detection: less reflective surface");
}
delay(100);
}
