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12PCS PCF8574 IO MCU Expansion Board I2C Interface 8bit I/O Expander IIC Bus Evaluation Development Module
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12PCS PCF8574 IO MCU Expansion Board I2C Interface 8bit I/O Expander IIC Bus Evaluation Development Module
The PCF8574 IO Expansion Board provides general-purpose remote I/O expansion via the two-wire bidirectional I2C-bus (serial clock (SCL), serial data (SDA)).
12PCS PCF8574 IO MCU Expansion Board I2C Interface 8bit I/O Expander IIC Bus Evaluation Development Module
Item #: 58858191

12PCS PCF8574 IO MCU Expansion Board I2C Interface 8bit I/O Expander IIC Bus Evaluation Development Module

Item #: 58858191
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The PCF8574 IO Expansion Board provides general-purpose remote I/O expansion via the two-wire bidirectional I2C-bus (serial clock (SCL), serial data (SDA)).
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What Stands Out

I2C Interface
Simplifies communication between microcontrollers and peripherals, providing easy integration into existing projects and reducing wiring complexity.
8-bit I/O Expansion
Expands input and output options for various projects, making it ideal for applications requiring multiple connections without overwhelming the microcontroller.
Development Module
Designed for easy prototyping, allowing developers to efficiently evaluate and implement solutions in their projects with minimal setup time.

Product Details

Expand your I/O resources with the PCF8574 IO Expansion Board. Supports I2C interface, 8-bit parallel. Perfect for MCU I/O expansion. Buy now at Ubuy São Tomé and Príncipe.
  • Provides general-purpose remote I/O expansion via the two-wire bidirectional I2C-bus
  • Supports I2C bus cascade for simultaneous use of multiple I2C modules
  • Designed for 2.5-V to 6-V VCC operation, with 8-bit input/output (I/O) expansion
  • Compatible with various platforms including AVR/ARM
  • Supports two interface types access target board: Pin or row seat
  • Commonly used for I/O resource shortage MCU I/O expansion
Connectivity TechnologyI2C
Operating SystemLinux
Processor BrandShutao
Wireless CompabilityInfrared
Compatible DevicesMicrocontrollers (AVR, ARM) supporting I2C communication
RAM Memory TechnologyLPDDR
Processor Count1
BrandShutao
Model NameShutao 13363-1
Built-In Media12 x PCF8574 IO Expansion Boards
UPC701715510623
Model Number13363-1
Mfr Part Number13363-1
ManufacturerShutao
Included Components12 x PCF8574 IO Expansion Boards
Item Weight0.5 lbs (230 grams)

Who Should Buy?

Suitable For
  • Embedded Systems Developers

    Ideal for developers integrating multiple I/O devices in embedded systems using I2C protocol for efficient communication.

  • DIY Electronics Hobbyists

    Suitable for hobbyists creating custom electronics projects that require additional I/O port expansion in a compact format.

  • Teaching and Education

    Great for educational environments where students learn about I2C communications and the functionality of I/O expanders.

Not Suitable For
  • High-Power Applications

    Not ideal for applications requiring high current or voltage, as the module is designed for low-power I/O tasks.

Product Description

12PCS PCF8574 IO MCU Expansion Board I2C Interface 8bit I/O Expander IIC Bus Evaluation Development Module

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Customer Questions & Answers

  • Question: What is the PCF8574 IO MCU Expansion Board?

    Answer: The PCF8574 IO MCU Expansion Board is an 8-bit I/O expander that communicates with microcontrollers via the I2C interface. This board allows you to expand the number of input/output pins available for your projects, making it ideal for various applications such as robotics, IoT devices, and home automation systems. By using this module, developers can easily control multiple peripherals while efficiently managing GPIO pins. It enhances versatility in circuit designs, allowing simpler integration with devices like sensors, LEDs, and more.
  • Question: How do I connect the PCF8574 expansion board to my microcontroller?

    Answer: To connect the PCF8574 board to your microcontroller, you need to use the I2C communication protocol. The board has dedicated pins for SDA (data line) and SCL (clock line) that can be connected to your microcontroller’s corresponding I2C pins. It’s also essential to ensure proper power supply connections. After connecting, you can use compatible libraries in your development environment, such as Arduino IDE, to easily communicate with the board. This setup is perfect for projects that require additional GPIO pin expansion without complicating wiring.
  • Question: What kind of projects can I build with this IO expander?

    Answer: With the PCF8574 IO expander, you can build a variety of projects including LED display controllers, sensor arrays, and IoT interfaces. It’s particularly useful in projects that require controlling multiple outputs or reading many inputs without utilizing excessive GPIO pins on your microcontroller. For example, if you are creating a home automation system to manage lights, this board can easily interface with your relays and sensors, providing a streamlined approach to managing complex setups.
  • Question: What are the main features of the PCF8574 module?

    Answer: The main features of the PCF8574 module include 8-bit I/O capabilities, I2C compatibility for easier communication with various microcontrollers, and the ability to connect multiple modules via the same I2C bus. This module operates at a voltage range suitable for most common microcontrollers. It also has built-in pull-up resistors for the I2C lines, ensuring robust communication. These features make the PCF8574 an excellent solution for developers looking to maximize functionality without increasing complexity.
  • Question: Can I use multiple PCF8574 boards in one project?

    Answer: Yes, you can use multiple PCF8574 boards in one project by assigning different I2C addresses to each board. The I2C protocol supports up to 127 devices on the same bus. To accomplish this, you can connect up to eight PCF8574 modules in succession, with hardware configurations that allow the address to change. This is particularly beneficial for large-scale projects, such as sensor networks or smart home applications, where numerous inputs and outputs are required.
  • Question: What programming languages can I use with the PCF8574?

    Answer: You can use various programming languages compatible with I2C protocols to interface with the PCF8574 module. Commonly, developers utilize C/C++ within environments like Arduino IDE, which has dedicated libraries for the PCF8574. Additionally, Python can be used for Raspberry Pi projects, allowing interaction with sensors and outputs. By employing these languages and libraries, developers can craft sophisticated applications that leverage the capabilities of the PCF8574 in versatile environments, from educational projects to complex automation systems.
  • Question: Is the PCF8574 compatible with all microcontrollers?

    Answer: The PCF8574 module is compatible with most microcontrollers that support I2C communication, including popular ones like Arduino, Raspberry Pi, ESP8266, and others. It is essential to ensure that I2C is enabled and the correct pin connections are made. This compatibility makes the PCF8574 ideal for a wide range of projects across different platforms, allowing developers to choose the best microcontroller for their specific needs and preferences without worrying about connectivity issues.
  • Question: What is the operational voltage of the PCF8574 module?

    Answer: The operational voltage of the PCF8574 module typically ranges from 2.5V to 6V, making it suitable for various microcontroller platforms. This range allows it to function effectively with 3.3V systems as well as 5V systems, providing flexibility in various project designs. Whether you are working on low-power devices or standard microcontroller projects, the PCF8574 will seamlessly integrate as long as the voltage specifications are met, enabling a wide range of application possibilities.
  • Question: Where can I buy the PCF8574 IO MCU Expansion Board in São Tomé and Príncipe?

    Answer: You can purchase the 12PCS PCF8574 IO MCU Expansion Board from Ubuy in São Tomé and Príncipe. Ubuy offers a variety of electronic components and modules, making it a convenient choice for your tech needs. They usually provide detailed product descriptions and customer reviews to help you make informed decisions. With a user-friendly interface and reliable service, Ubuy is an excellent resource for sourcing this and similar development modules.
  • Question: What are the benefits of using an I2C interface like the one on this board?

    Answer: Using an I2C interface provides several advantages, including reduced pin usage on your microcontroller since it allows multiple devices to share the same two wires for communication. This minimizes complexity in wiring and makes circuit designs cleaner. Additionally, I2C supports multiple speeds, making it adaptable to various project requirements. For instance, in a robotics surveillance setup, you could connect multiple sensors to one microcontroller without needing extra I/O pins, enhancing the efficiency of your design.

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Pros

  • Improves microcontroller I/O capabilities
  • Supports I2C multi-device connection
  • Compact design for tight spaces
  • Easy integration with Arduino/Raspberry Pi
  • Low power consumption during operation

Cons

  • Limited to 8-bit I/O per chip

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Features & Benefits

  • Supports two interface types access target board: Pin or row seat
  • Supports I2C bus cascade
  • I/O expansion module, two I/O scalability 8 I/O
  • Designed for 2.5V to 6V VCC operation
  • Applicable to a variety of platforms including AVR / ARM

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