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Item #:
98009051
4PCS PCF8575 IO Expander Module I2C to 16IO Integrated Circuits
Item #:
98009051
€ 17
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Order now and get it around Saturday, June 27
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Expand your I/O capabilities effortlessly with the PCF8575 module, allowing control of up to 16 inputs/outputs using just two pins!
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
16 IO Ports
Offers 16 additional input/output ports, allowing extensive connectivity for various sensors and devices, optimizing your project’s functionality and versatility.
I2C Compatibility
Utilizes I2C communication protocol, enabling easy integration with microcontrollers while minimizing pin usage, streamlining complex designs significantly for both beginners and experts.
Compact Design
Features a space-saving design that enhances prototyping convenience, making it suitable for projects with limited space while maintaining high performance and reliability.
Product Details
| Item Weight | 0.3 lbs (140 grams) |
Who Should Buy?
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Hobbyist Electronics
Ideal for hobbyists needing extra GPIO for projects, allowing control of multiple devices with limited microcontroller pins.
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DIY Automation Projects
Perfect for DIY home automation setups requiring additional input/output capabilities for sensors and actuators.
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Educational Use
Great for students learning about I2C communication and IO expansion, offering hands-on experience with integrated circuits.
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High-Performance Applications
Not suitable for high-speed applications where latency or speed is critical, due to I2C communication limitations.
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Professional Prototyping
May not meet the requirements for professional or industrial-level prototypes that need robust performance and reliability.
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Limited Technical Knowledge
Users unfamiliar with I2C or GPIO may find the module challenging to implement effectively in their projects.
Product Description
4PCS PCF8575 IO Expander Module I2C to 16IO Integrated Circuits
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What is the default I2C address of the PCF8575 module?
Answer: The default I2C address is 0x20, which can be modified by soldering the A1 and A2 selection pads. -
Question:
What is the maximum working current for the PCF8575?
Answer: The maximum working current for the PCF8575 is 100mA. -
Question:
Can the individual pins be configured for both input and output?
Answer: Yes, each of the 16 pins is individually configurable for either input or output.
QCCAN Single Board Computers Editorial Review
The 4PCS PCF8575 IO Expander Module has garnered mixed reviews from customers, reflecting both its potential and its drawbacks. Many users appreciate the functionality that these modules offer in expanding the I/O capabilities of their projects. However, a common theme among the reviews is the need for caution when handling these boards. One critical point mentioned is the necessity of soldering the A0, A1, and A2 pins to set the I2C address. This step is crucial; otherwise, users may face unexpected changes in the address during operation, which could lead to troubleshooting confusion. Additionally, the pin numbering on the boards presents a challenge, as the silk-screened labels skip certain numbers, causing further potential misunderstanding in code execution. While the boards are generally functional, customer experiences varied regarding their quality. A few users encountered non-functional boards, raising concerns about the reliability of the modules. This unpredictability can hamper projects, especially for those who intended to utilize multiple boards simultaneously. In some cases, users had to resort to painstaking troubleshooting only to discover that the fault lay with the hardware itself rather than their coding or wiring efforts. Overall, the 4PCS PCF8575 IO Expander Module is presented as a cost-effective solution for those adept at soldering and troubleshooting hardware but poses a risk of receiving defective units. **
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Pros
- Cost-effective for multiple I/O expansion.
- Generally functional when properly set up.
- Suitable for users comfortable with soldering and coding.
Cons
- Necessity of soldering A0, A1, and A2 pins to set the I2C address may confuse some users.
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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€ 17
Order now and get it around Saturday, June 27
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Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
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Features & Benefits
- Control up to 16 I/O with only two I/O for seamless expansion.
- Features a robust I2C interface for easy connectivity.
- Quasi-bidirectional 16-bits input/output pins for versatile applications.
- 3.3V level converter circuit for flexible voltage requirements.
- Working voltage range of 2.5 - 5.5V DC for broad compatibility.
- Ideal for UNO R3 and other MCUs, perfect for controlling relays, buzzers, and LEDs.