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The DFRobot Gravity: MCP23017 I2C 16 Digital IO Expansion Module by DFRobot is a value-for-money bbc microbit and expansion boards designed for everyday users. It features Operating Voltage: 3.3 to 5.5V and I/O pins: 16.
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About This Product
The DFRobot Gravity: MCP23017 I2C 16 Digital IO Expansion Module by DFRobot is a value-for-money bbc microbit and expansion boards designed for everyday users. It delivers reliable performance at an accessible price.
Key Specifications
- Operating Voltage: 3.3 to 5.5V — works with standard household power
- I/O pins: 16
- Current (A): 20m
- Interrupt pins: IA (GPIOA), IB (GPIOB)
- Connector Type: Gravity 4P I2C/UART — compatible with modern devices
- Length (mm): 44
- Width (mm): 32
- Weight (g): 08
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The Gravity: MCP23017 I2C 16 Digital IO Expansion Module by DFRobot is designed to significantly enhance your microcontroller’s I/O capabilities. Using the MCP23017 chip, it adds 16 additional digital I/O ports and supports up to 128 I/Os when daisy-chained. It features dual GPIO groups (GPIOA & GPIOB), interrupt signal pins (IA & IB), and is compatible with both 3.3V and 5V systems. Ideal for robotics, light cubes, and interactive media, it offers flexible I2C address selection, multiple I/O modes, and easy integration into Gravity systems. Perfect for makers looking to overcome pin limitations in compact, reliable designs.
Note: Refer to datasheet in the ATTACHMENTS section for more info. regd. the product.Features:
- Adds 16 digital I/O ports per module
- Expandable up to 128 I/O ports via I2C (8 addresses)
- Dual 8-bit GPIO groups: GPIOA & GPIOB
- Supports multiple I/O modes: input, output, pull-up, interrupt
- Compatible with 3.3V and 5V systems
- I2C address configurable via onboard DIP switch
- Built-in interrupt signals (IA & IB) for event detection
- Includes Gravity-compatible I2C/UART connector cable
Package Includes:
1 x DFRobot Gravity: MCP23017 I2C 16 Digital IO Expansion Module
1 x Cable
