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Item #:
227597533
4pcs IO Expander Board Module, MCP23017 I2C to IO Port Expander Module, 16-Bit Serial Interface Sensor IC with Programmable Interrupt
Item #:
227597533
SAR 80
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Experience reliable performance across a wide temperature range of -40°C to 85°C with our versatile I2C to IO port module.
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What Stands Out
I2C Interface
Simplifies connectivity with microcontrollers by leveraging I2C protocol, allowing multiple devices on the same serial bus, thus minimizing wiring and enhancing design efficiency.
Programmable Interrupts
Offers programmable interrupts for efficient operation, enabling automatic signals to the host when state changes occur, which improves responsiveness and reduces microcontroller workload.
16-Bit Expansion
Provides 16 additional I/O ports, expanding connectivity options for various sensors and modules, effectively enhancing project capabilities without needing extra GPIO pins on the microcontroller.
Product Details
| Product Dimensions (L x W x H) | 4.33 x 2.36 x 0.39 inches (11 x 6 x 1 cm) |
| Item Weight | 0.635 ounces (18 grams) |
| Manufacturer | HanOaki |
| Item model number | 617V11LI04LS7VZ8O0X70MHI9 |
| Date First Available | November 11, 2025 |
Who Should Buy?
-
Hobbyist Projects
Ideal for DIY electronics projects requiring multiple I/O pins for sensors and controls with limited microcontroller ports.
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Prototype Development
Great for developers needing to quickly prototype sensor applications using the I2C interface to expand I/O capabilities.
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Embedded Systems
Suitable for embedded systems where added I/O ports are needed without sacrificing microcontroller space or resources.
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Beginner Users
Not ideal for beginners unfamiliar with I2C protocols or interpreting sensor outputs and board connections.
Product Description
4pcs IO Expander Board Module, MCP23017 I2C to IO Port Expander Module, 16-Bit Serial Interface Sensor IC with Programmable Interrupt
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Customer Questions & Answers
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Question:
What is the MCP23017 IO Expander Board Module used for?
Answer: The MCP23017 IO Expander Board Module is designed to increase the number of input/output pins available on microcontrollers. Utilizing I2C communication, it expands capabilities by providing 16 additional GPIO pins, which are programmable. This is particularly useful in applications where multiple sensors or devices are connected, enabling more efficient circuit designs and simplifying wiring. -
Question:
How does the I2C to IO port expander work?
Answer: The I2C to IO port expander works by enabling communication over the I2C protocol, allowing your microcontroller to control multiple GPIO pins without needing additional pins for direct connection. The MCP23017 can be connected to an I2C-compatible microcontroller and can be configured to handle inputs from switches or outputs for LEDs, making it ideal for applications in robotics and automation. -
Question:
What are the key features of the MCP23017 module?
Answer: The MCP23017 module features 16-bit input/output ports, programmable interrupt pins, and the ability to daisy-chain multiple I2C devices. These features allow for versatility in complex projects, providing the ability to manage several peripherals without burdening the primary microcontroller. It also includes address pins to connect up to 8 devices on the same I2C bus, making it invaluable for scalable projects. -
Question:
Can I use multiple MCP23017 modules together?
Answer: Yes, multiple MCP23017 modules can be connected in series on a single I2C bus. By utilizing the address pins, you can assign unique addresses to each module, allowing simultaneous control of numerous GPIOs. This feature is particularly beneficial in projects requiring extensive input/output options, such as home automation systems or complex robotics. -
Question:
What programming environments support the MCP23017 module?
Answer: The MCP23017 module is compatible with various programming environments, including Arduino, Raspberry Pi, and other I2C-friendly platforms. Libraries are readily available for each environment, making it straightforward to integrate this expander into existing projects, facilitating tasks like handling multiple buttons or sensors efficiently without complicated wiring. -
Question:
What are some practical applications of the MCP23017?
Answer: The MCP23017 is commonly used in applications involving robotics, home automation, and interactive installations. For instance, it can connect multiple buttons and sensors to a microcontroller, managing inputs from a control panel in a smart home system or expanding the number of controls in a robotic arm operation. This versatility enhances both hobbyist and industrial projects. -
Question:
Is additional power supply needed for the MCP23017?
Answer: Typically, the MCP23017 operates on I2C power, which can be supplied by the connected microcontroller. It requires a voltage supply between 1.8V to 5.5V. However, ensure your project design accounts for the current consumption of additional sensors or components connected to the GPIO pins to prevent overloading the power supply from the microcontroller. -
Question:
What are interrupts in the context of the MCP23017?
Answer: In the context of the MCP23017, interrupts refer to signals that notify the microcontroller when GPIO pin states change, which saves processing power. When a button is pressed or a sensor is triggered, the MCP23017 can generate an interrupt signal, allowing the microcontroller to handle tasks efficiently in real-time, rather than continuously polling for changes. -
Question:
Where can I buy the 4pcs IO Expander Board Module?
Answer: You can buy the 4pcs IO Expander Board Module, MCP23017 I2C To IO Port Expander Module at Ubuy in Saudi Arabia. Ubuy offers a convenient platform for purchasing a variety of electronic components, ensuring you have access to quality products for your projects. -
Question:
Are there tutorials available for using the MCP23017 module?
Answer: Yes, there are numerous tutorials available online for using the MCP23017 module across various platforms. Websites like GitHub and electronics forums provide ample code samples and project ideas for beginners and advanced users alike. Following these guides can significantly cut down on the learning curve and help you get your projects up and running quickly.
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Features & Benefits
- Reliable performance in extreme temperatures from -40°C to 85°C.
- Compatible with a versatile voltage range of 1.8V to 5.5V.
- Fast data communication with a frequency of 1.7MHz for efficient operations.
- Impressive low power consumption of just 1μA for energy savings.
- Features advanced functionality like 16-bit parallel to serial conversion.
- Includes dual programmable interrupt outputs for flexible GPIO configuration.
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