---
product_id: 221556062
title: "20 Pieces IR Infrared Obstacle Avoidance Sensor Module 3-Wire Reflective Photoelectric Sensor Module Compatible with Arduino/Raspberry Pi 3/Smart Car Robot"
brand: "frienda"
price: "€ 24.88"
currency: EUR
in_stock: true
reviews_count: 13
category: "Frienda"
url: https://www.desertcart.it/products/221556062-20-pieces-ir-infrared-obstacle-avoidance-sensor-module-3-wire
store_origin: IT
region: Italy
---

# 5V direct microcontroller compatibility 2-30 cm adjustable detection range 35° detection angle for precise sensing 20 Pieces IR Infrared Obstacle Avoidance Sensor Module 3-Wire Reflective Photoelectric Sensor Module Compatible with Arduino/Raspberry Pi 3/Smart Car Robot

**Brand:** frienda
**Price:** € 24.88
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your robotics game with precision IR sensing—because your smart projects deserve the best!

## Quick Answers

- **What is this?** 20 Pieces IR Infrared Obstacle Avoidance Sensor Module 3-Wire Reflective Photoelectric Sensor Module Compatible with Arduino/Raspberry Pi 3/Smart Car Robot by frienda
- **How much does it cost?** € 24.88 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/221556062-20-pieces-ir-infrared-obstacle-avoidance-sensor-module-3-wire)

## Best For

- frienda enthusiasts

## Why This Product

- Trusted frienda brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Application:** Perfect for obstacle avoidance, line tracking, and automated robotics—engineered for innovation.
- • **Plug & Play Integration:** Seamlessly connect to Arduino, Raspberry Pi, or smart car robots with a simple 3-wire interface.
- • **Real-Time Digital Output:** Instant low-level digital signals ensure your projects respond without delay.
- • **Reliable Visual Feedback:** Built-in green LED indicator confirms detection status at a glance, boosting debugging efficiency.
- • **Precision Infrared Detection:** Detect obstacles from 2 to 30 cm with adjustable sensitivity for flawless navigation.

## Overview

This 20-piece IR Infrared Obstacle Avoidance Sensor Module kit offers adjustable 2-30 cm detection range and a 35° sensing angle, compatible with 3-5V systems like Arduino and Raspberry Pi. Featuring a 3-wire reflective photoelectric design with real-time digital output and visual LED feedback, it’s ideal for robotics, smart cars, and line tracking applications. Lightweight and easy to integrate, it empowers millennial tech innovators to build smarter, faster, and more reliable automated systems.

## Description

International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

Review: Can't go wrong. Does what it says on the tin - Excellent value, at less than 50 pence per sensor when I bought them. I haven't used all of them, but the dozen that I have used all worked reliably and to specification. I just have them dotted around a self navigating robot for collision avoidance and to help with alignment when driving in to it's recharging nest.
Review: Can become very quick detector - as these stand they are somewhat slow in detection BUT by removing the 104 cap from the input and the led from the output they become very quick i am using these boards slightly modded as above on a Chronograph for air rifles with parralel BPW34s 11 and a red line laser as the source thet will detect a needle tip breaking the beam althou only half of the lm393 is used (pulse shaper maybe)

## Features

- Feature: there is a pair of infrared transmitting and receiving tube of the IR sensor module, tube infrared emit a certain frequency, when the detection direction meets the obstacles (reflecting surface), reflected infrared receiving tube, after the comparator circuit processing, green indicator will light up, at the same time signal output interface to output digital signal (a low level signal)
- Function: the IR infrared obstacle avoidance sensor module can be applied in robot obstacle avoidance, obstacle avoidance car, line count, black and white line tracking, etc.
- Adjustable distance: the detection distance of the infrared module is 2 to 30 cm, and the detection angle is 35 degrees, the distance The distance at which the potential can be detected is adjustable
- Easy to use: the output port OUT sensor module can be directly connected to the microcontroller port, you can directly drive a 5V relay
- Application: the IR sensor module can be applied for 3-5V DC power supply modules; There is a red power indicator

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08DR1W3BK |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 9,849 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 1 in Infrared Proximity Sensors |
| Customer Reviews | 4.3 4.3 out of 5 stars (259) |
| Date First Available | 28 July 2020 |
| Item Package Quantity | 1 |
| Item Weight | 68 g |
| Item model number | Frienda-Obstacle-431S |
| Manufacturer | Frienda |
| Part number | Frienda-Obstacle-431S |
| Product Dimensions | 18.69 x 10.31 x 1.8 cm; 68.04 g |
| Voltage | 5 Volts |

## Images

![20 Pieces IR Infrared Obstacle Avoidance Sensor Module 3-Wire Reflective Photoelectric Sensor Module Compatible with Arduino/Raspberry Pi 3/Smart Car Robot - Image 1](https://m.media-amazon.com/images/I/81HmxBKAP7L.jpg)
![20 Pieces IR Infrared Obstacle Avoidance Sensor Module 3-Wire Reflective Photoelectric Sensor Module Compatible with Arduino/Raspberry Pi 3/Smart Car Robot - Image 2](https://m.media-amazon.com/images/I/71gp1InxTkL.jpg)
![20 Pieces IR Infrared Obstacle Avoidance Sensor Module 3-Wire Reflective Photoelectric Sensor Module Compatible with Arduino/Raspberry Pi 3/Smart Car Robot - Image 3](https://m.media-amazon.com/images/I/61htb9cKSqL.jpg)
![20 Pieces IR Infrared Obstacle Avoidance Sensor Module 3-Wire Reflective Photoelectric Sensor Module Compatible with Arduino/Raspberry Pi 3/Smart Car Robot - Image 4](https://m.media-amazon.com/images/I/613TyZxiS-L.jpg)
![20 Pieces IR Infrared Obstacle Avoidance Sensor Module 3-Wire Reflective Photoelectric Sensor Module Compatible with Arduino/Raspberry Pi 3/Smart Car Robot - Image 5](https://m.media-amazon.com/images/I/61y-NbEWf+L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Can't go wrong. Does what it says on the tin
*by I***D on 5 January 2021*

Excellent value, at less than 50 pence per sensor when I bought them. I haven't used all of them, but the dozen that I have used all worked reliably and to specification. I just have them dotted around a self navigating robot for collision avoidance and to help with alignment when driving in to it's recharging nest.

### ⭐⭐⭐⭐⭐ Can become very quick detector
*by P***C on 24 May 2026*

as these stand they are somewhat slow in detection BUT by removing the 104 cap from the input and the led from the output they become very quick i am using these boards slightly modded as above on a Chronograph for air rifles with parralel BPW34s 11 and a red line laser as the source thet will detect a needle tip breaking the beam althou only half of the lm393 is used (pulse shaper maybe)

### ⭐⭐⭐⭐ Easy to use and works at short range
*by M***. on 4 January 2021*

Bought a box of these boards and although there are no instructions provided you just need to hook up the module to power and ground plus an digital input line of your processor board. I used a spare AI Thinker ESP8266 MOD board to test and my Arduino IDE sketch is shown running in attached video. Note the detection works as the inverse of what you might be expecting so digital zero is output when a reflection is detected, digital 1 is output otherwise. My demo sketch shown below: /* demo infra red module on an ESP8266 board sensor output pin connected to D8 */ const int SENSORPIN = D8; void setup() { Serial.begin(115200); pinMode(SENSORPIN, INPUT); } void loop() { int d = digitalRead(SENSORPIN); Serial.println(d); if (d == 0 ) { Serial.println(" DETECTED"); } delay(200); }

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-07-03*