---
product_id: 476313988
title: "10Pcs PCF8575 IO Expander Board Module I2C to 16 IO Extension Module I2C Communication Control 16 bit SMBus I/O Ports"
brand: "aitiao"
price: "14710 Ft"
currency: HUF
in_stock: true
reviews_count: 3
url: https://www.desertcart.hu/products/476313988-10pcs-pcf8575-io-expander-board-module-i2c-to-16-io
store_origin: HU
region: Hungary
---

# 2.5-5.5V wide voltage range I2C & SMBus communication 16-bit I/O expansion 10Pcs PCF8575 IO Expander Board Module I2C to 16 IO Extension Module I2C Communication Control 16 bit SMBus I/O Ports

**Brand:** aitiao
**Price:** 14710 Ft
**Availability:** ✅ In Stock

## Summary

> 🚀 Expand Your Control, Elevate Your Projects!

## Quick Answers

- **What is this?** 10Pcs PCF8575 IO Expander Board Module I2C to 16 IO Extension Module I2C Communication Control 16 bit SMBus I/O Ports by aitiao
- **How much does it cost?** 14710 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/476313988-10pcs-pcf8575-io-expander-board-module-i2c-to-16-io)

## Best For

- aitiao enthusiasts

## Why This Product

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

## Key Features

- • **Smart Interrupt Pin:** Open-drain interrupt output for instant input change alerts.
- • **Compact & Lightweight:** Sleek 1.57x0.83 inch design fits perfectly in any setup.
- • **Plug & Play I2C Interface:** Effortless integration with I2C protocol for streamlined communication.
- • **Seamless 16-Bit Expansion:** Unlock 16 additional I/O ports for ultimate MCU control.
- • **Flexible Voltage Compatibility:** Operates smoothly between 2.5V and 5.5V to fit diverse projects.

## Overview

The 10Pcs PCF8575 IO Expander Board Module offers 16 quasi-bidirectional I/O pins controlled via I2C, supporting a wide voltage range (2.5-5.5V) and featuring an open-drain interrupt pin for efficient input change detection. Ideal for enhancing MCU capabilities in compact, professional-grade electronics projects.

## Description

10Pcs PCF8575 IO Expander Board Module I2C to 16 IO Extension Module I2C Communication Control 16 bit SMBus I/O Ports

## Features

- Available library: PCF8575; I2C address: 0x20(default),can be modified by installing A1 and A2.
- Working voltage: 2.5 - 5.5V DC; Working current: 100mA(MAX)
- The PCF8575 is controlled through an I2C interface and features 16-bits of quasi-bidirectional input/output pins.
- Open-drain interrupt output pin for input change interrupt.
- The PCF8575 IO expander board is great for R3 and other MCU to control simple relay, buzzer, button, led.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | AITIAO |
| Operating System | Linux |
| Item Weight | 1.76 ounces |
| Product Dimensions | 1.57 x 0.83 x 1.57 inches |
| Item Dimensions  LxWxH | 1.57 x 0.83 x 1.57 inches |
| Color | 10PCS PCF8575 Expander Board |
| Processor Brand | ARM |
| Number of Processors | 1 |
| Manufacturer | AITIAO |
| ASIN | B0B82R7R17 |
| Country of Origin | China |
| Date First Available | July 29, 2022 |

## Product Details

- **Brand:** AITIAO
- **Connectivity Technology:** I2C
- **Included Components:** others
- **Operating System:** Linux
- **CPU Manufacturer:** ARM

## Images

![10Pcs PCF8575 IO Expander Board Module I2C to 16 IO Extension Module I2C Communication Control 16 bit SMBus I/O Ports - Image 1](https://m.media-amazon.com/images/I/817gQd6QbYL.jpg)
![10Pcs PCF8575 IO Expander Board Module I2C to 16 IO Extension Module I2C Communication Control 16 bit SMBus I/O Ports - Image 2](https://m.media-amazon.com/images/I/61eVFcOP3eL.jpg)
![10Pcs PCF8575 IO Expander Board Module I2C to 16 IO Extension Module I2C Communication Control 16 bit SMBus I/O Ports - Image 3](https://m.media-amazon.com/images/I/71F8djuZ+lL.jpg)
![10Pcs PCF8575 IO Expander Board Module I2C to 16 IO Extension Module I2C Communication Control 16 bit SMBus I/O Ports - Image 4](https://m.media-amazon.com/images/I/71sw2WVDFHL.jpg)
![10Pcs PCF8575 IO Expander Board Module I2C to 16 IO Extension Module I2C Communication Control 16 bit SMBus I/O Ports - Image 5](https://m.media-amazon.com/images/I/61OuODOwosL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ Works well once you solder the address lines.
*by R***N on May 13, 2024*

I saw the review of the high failure rate and experienced the same failure. I then noticed that the address pins were floating and that if you want to have address 20, jump all the address pins on the back to gnd. After that, I had no failures.So far, they are working well.I am still testing.I am using this to read a Halleffect sensor array.

### ⭐⭐ (Not) NOW a bad failure rate.... Dropped a few more stars due to failure
*by B***E on July 31, 2023*

UPDATE:I'm now dropping my rating to 2 Stars as these are failing after 3- 5 days of continuous use.From all 10 units, only two are still working correctly. FYI - I'm putting in 5v and using all 16 pins as INPUT for hall sensors. If you're going to get these, you need to do your own QA for a few weeks first.PREVIOUS:I've tried a number of PCF8575 PCBs here on Amazon and these are probably the most consistent with a failure rate of only 20-25%. YES, I know it should be a failure of 0%, but to be honest... 20-25% is the best I have found on Amazon. I needed 6 boards and I was able to find 6 good ones out of the10 that were shipped. For other companies selling the same 'type' of PCF8575 I would have to order more than 10 pieces.Just expect that the 'actually' price for these boards is actually double the cost and you will be fine.PS: The address for an opened (no shorts on A0, A1, or A2) board should be 32 (HEX:0x20 or BIN:100000). If you get 39 (0x27) you know you have a bad board.

### ⭐ Unreliable
*by I***Y on August 18, 2023*

So far 3 DOA and 1 last for a couple of hours. Avoid

## Frequently Bought Together

- AITIAO 10Pcs PCF8575 IO Expander Board Module I2C to 16 IO Extension Module I2C Communication Control 16 bit SMBus I/O Ports
- ALLECIN 20Pcs A3144 3144 Hall Effect Sensor OH3144 AH3144E 3Pins Magnetic Detector

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-03-11*