---
product_id: 226054409
title: "Frienda 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: "$34.47"
currency: USD
in_stock: true
url: https://www.desertcart.ec/products/226054409-frienda-20-pieces-ir-infrared-obstacle-avoidance-sensor-module-3
store_origin: EC
region: Ecuador
---

# 2-30 cm adjustable detection range Infrared reflective sensing tech 3-wire easy MCU & relay integration Frienda 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:** $34.47
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your robotics game with Frienda’s IR sensors—because your smart projects deserve precision and style!

## Quick Answers

- **What is this?** Frienda 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?** $34.47 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/226054409-frienda-20-pieces-ir-infrared-obstacle-avoidance-sensor-module-3)

## 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

- • **Seamless Smart Integration:** Plug-and-play 3-wire interface (VCC, GND, OUT) compatible with Arduino, Raspberry Pi, and 5V relays for instant connectivity.
- • **Compact & Mount-Ready Design:** Slim 3.1 x 1.5 cm board with 3mm screw holes for effortless installation in any robotics or smart car project.
- • **Bulk Pack for Ambitious Builders:** 20 modules included—perfect for prototyping, classrooms, or scaling your next-gen obstacle avoidance robot fleet.
- • **Precision Detection, Zero Guesswork:** Adjust detection distance from 2 to 30 cm with a simple potentiometer twist—tailor your sensor’s range to your project’s exact needs.
- • **Visual Feedback for Instant Debugging:** Green LED lights up on obstacle detection, plus a red power indicator ensures your setup is always powered and ready.

## Overview

The Frienda 20 Pieces IR Infrared Obstacle Avoidance Sensor Module offers adjustable 2-30 cm detection range with a 35° sensing angle, using infrared reflective technology. Compatible with Arduino, Raspberry Pi, and 5V relays, it features a 3-wire interface and onboard LEDs for power and detection status. Compact and easy to mount, this pack of 20 modules is ideal for robotics, smart cars, and line tracking applications.

## Description

Frienda 20 Pieces IR Infrared Obstacle Avoidance Sensor Module 3-Wire Reflective Photoelectric Sensor Module Compatible with Arduino/Raspberry Pi 3/Smart Car Robot

## 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 |
|---------------|-------|
| Wireless Type | Infrared |
| Brand | Frienda |
| Item model number | Frienda-Obstacle-431S |
| Item Weight | 2.46 ounces |
| Product Dimensions | 7.36 x 4.06 x 0.71 inches |
| Item Dimensions  LxWxH | 7.36 x 4.06 x 0.71 inches |
| Voltage | 5 Volts |
| Manufacturer | Frienda |
| ASIN | B08DR1W3BK |
| Date First Available | July 28, 2020 |

## Images

![Frienda 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)

## Frequently Bought Together

- Frienda 20 Pieces IR Infrared Obstacle Avoidance Sensor Module 3-Wire Reflective Photoelectric Sensor Module Compatible with Arduino/Raspberry Pi 3/Smart Car Robot
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**Shop now:** [https://www.desertcart.ec/products/226054409-frienda-20-pieces-ir-infrared-obstacle-avoidance-sensor-module-3](https://www.desertcart.ec/products/226054409-frienda-20-pieces-ir-infrared-obstacle-avoidance-sensor-module-3)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-01*