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Item #:
53525523
2PCS PCF8575 IO Expander Board Module I2C to 16IO IIC I2C I/O Extension Shield Module 16 bit SMBus I/O Ports for Arduino UNO R3
Item #:
53525523
AUD 28
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Order now and get it around Sunday, August 16
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What Stands Out
I2C Compatibility
Seamlessly integrates with Arduino UNO R3, enabling easy communication through I2C protocol, simplifying the connection of multiple devices or expansions.
16 Input/Output
Offers 16 versatile I/O ports, allowing for extensive expansion capabilities, handling multiple sensors and devices simultaneously for advanced projects.
Compact Design
Designed to fit easily into small project spaces, this module enhances functionality without compromising on space, ideal for DIY electronics enthusiasts and professionals.
Product Details
| Connectivity Technology | I2C |
| Operating System | Linux or Windows |
| Compatible Devices | Arduino UNO R3 |
| Processor Count | 1 |
| Smart Home Compatibility | Not Smart Home Compatible |
| Brand | Azuocn |
| Model Name | PCF8575 Module |
| Built-In Media | PCF8575 IO Expander Board |
| UPC | 768470326340 |
| Manufacturer | Azuocn |
| Unit Count | 2.0 Count |
| Included Components | PCF8575 IO Expander Board |
| Item Weight | 0.3 lbs (140 grams) |
Who Should Buy?
-
Arduino Enthusiasts
Ideal for hobbyists looking to expand I/O capabilities in Arduino projects, easily integrating with I2C protocol.
-
IoT Developers
Suited for developers building Internet of Things devices needing additional I/O ports for sensor and actuator control.
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Educational Users
Perfect for educational purposes, allowing students to learn about I2C communication and digital electronics projects.
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Non-Technical Users
Not suitable for those without knowledge of electronics or programming, as it requires coding and setup.
Product Description
2PCS PCF8575 IO Expander Board Module I2C to 16IO IIC I2C I/O Extension Shield Module 16 bit SMBus I/O Ports for Arduino UNO R3
About This Item
Introducing the 2PCS PCF8575 IO Expander Board Module, the perfect solution for expanding the I/O capabilities of your Arduino UNO R3. With this I2C IO Extension Shield Module, you can easily add 16 additional I/O ports to your project, giving you more flexibility and control. Designed with convenience in mind, this IO Expander Board is equipped with a PCF8575 chip, which enables seamless communication between your Arduino and the module. The I2C protocol ensures fast and reliable data transmission, allowing you to efficiently connect and control various devices. Thanks to its 16-bit SMBus IO Ports, you have the power to connect and control a wide range of external devices such as sensors, switches, LEDs, and much more.
This IO Extension Shield Module offers a simple and effective way to expand the capabilities of your Arduino projects and take them to the next level. By utilizing the PCF8575 IO Expander Board, you can save valuable GPIO pins on your Arduino for other tasks, while still having access to a multitude of I/O ports. This is particularly useful for projects that require a large number of inputs and outputs. Whether you're a hobbyist, student, or a professional, this IO Expander Module is a must-have for your electronics toolkit. Its compact size and easy installation make it suitable for a wide range of applications, from prototyping to final projects. Upgrade your Arduino UNO R3's capabilities with the 2PCS PCF8575 IO Expander Board Module.
Take control of your projects and unlock endless possibilities with this essential I2C IO Extension Shield Module. Order now and experience the convenience of expanded I/O ports like never before.
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the PCF8575 IO Expander Board Module used for?
Answer: The PCF8575 IO Expander Board Module is designed to expand the I/O capabilities of microcontrollers such as the Arduino UNO R3. This module utilizes the I2C protocol to interface, allowing you to connect up to 16 additional digital I/O ports. It's particularly useful in projects that require multiple inputs and outputs, such as controlling LEDs, buttons, or sensors without depleting your main board’s capabilities. -
Question:
How does the I2C communication work with the PCF8575?
Answer: I2C, or Inter-Integrated Circuit, is a communication protocol that allows multiple slave devices to communicate with a single master device. The PCF8575 uses this protocol to interface with an Arduino, letting you control up to 16 I/O pins. By connecting the SDA and SCL pins to the Arduino's corresponding I2C pins, you can send and receive data efficiently. This is especially beneficial in applications where minimizing wiring complexity and maintaining a compact design is necessary. -
Question:
Can I use the PCF8575 with other microcontrollers besides Arduino?
Answer: Yes, the PCF8575 IO Expander Board Module is versatile and can be used with other microcontrollers that support I2C communication. This includes popular platforms like Raspberry Pi, ESP8266, and STM32. The primary requirement is the availability of I2C pins. This flexibility makes it an ideal choice for a wide range of projects that require additional I/O ports, regardless of your preferred microcontroller. -
Question:
What applications can benefit from using the PCF8575 module?
Answer: The PCF8575 is perfect for various applications, including building automated systems, robotics, and home automation projects. For instance, if you're working on a DIY home control system, you can easily manage multiple sensors and actuators without overwhelming your main controller. This makes it an ideal solution for engaging projects that require numerous I/O interactions while maintaining a clean and manageable circuit design. -
Question:
What devices can I connect to the PCF8575 IO Expander?
Answer: You can connect various devices such as LEDs, pushbuttons, displays, and sensors to the PCF8575. For example, if you're creating a control panel, you could interface several buttons and LEDs, where each button controls the state of an LED. The module easily handles these connections via its additional I/O pins, enabling complex interactions and functionalities without the need for extensive additional hardware. -
Question:
How do I wire the PCF8575 to my Arduino UNO?
Answer: To wire the PCF8575 to your Arduino UNO, connect the VCC pin to 5V, GND to GND, SDA to A4, and SCL to A5. Additionally, you might need pull-up resistors on the SDA and SCL lines depending on your setup. Once wired properly, you can use existing I2C libraries to easily communicate with the expander, allowing you to control and read from the connected devices effectively. -
Question:
What are the technical specifications of the PCF8575 module?
Answer: The PCF8575 module operates at a voltage range of 2.5V to 6V and supports 16 I/O ports configurable as inputs or outputs. Each port can source a maximum of 25mA. It boasts an I2C addressable feature allowing multiple devices on the same bus. This makes the module efficient for projects requiring many digital interfaces, ensuring high performance while conserving space and system resources. -
Question:
How can I program the PCF8575 using Arduino?
Answer: You can program the PCF8575 module using the Wire library in Arduino. After including it in your sketch, initialize the I2C communication, then set the direction of the I/O pins as either input or output. You can then use simple commands to read from or write to the pins. This straightforward approach enables seamless integration within your existing Arduino projects, expanding functionality with minimal additional coding. -
Question:
Is the PCF8575 compatible with Arduino libraries?
Answer: Yes, the PCF8575 is compatible with existing Arduino libraries, notably the I2C and Wire libraries. This compatibility allows you to leverage a plethora of existing code examples and community projects, significantly speeding up the development of your applications. Additionally, many libraries specifically designed for I2C expander modules already support the PCF8575, facilitating easier implementation for various projects. -
Question:
Where can I buy the 2PCS PCF8575 IO Expander Board Module in Australia?
Answer: You can purchase the 2PCS PCF8575 IO Expander Board Module from Ubuy in Australia. Ubuy is a reliable e-commerce platform that offers a wide variety of electronic components including this module, ensuring you have access to quality products backed by convenient services. By using Ubuy, you can easily find the components you need to kickstart your next electronics project.
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Pros
- Easy integration with Arduino
- Supports I2C communication
- 16 additional IO ports
- Compact and lightweight design
- Reliable performance under load
Cons
- Limited documentation available
Platform Trust & Buyer Confidence
CJ
Chris
Verified buyer
“Promt delivery. Seems like a good product.”
22 July 2026 · via Trustpilot
SM
Scott
Verified buyer
“It was the best service ever received by any company from my online shopping experience in the last 10yrs”
11 July 2026 · via Trustpilot
TD
Terri
Verified buyer
“so easy to order delivery was way earlier than i expected”
3 July 2026 · via Trustpilot
GC
Gavin
Verified buyer
“Very impressed with the speed at which I received my package from the United States to Australia. Highly recommended.”
21-Jul-26 · via Trustpilot
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Jeannie
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“Very efficient service. Hassle-free. Excellent product. Have ordered several times.”
17-Jul-26 · via Trustpilot
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AUD 28
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