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The Waveshare MCP23017 IO Expansion Board is a powerful I2C interface that expands 2 signal pins into 16 I/O pins, allowing for extensive connectivity options. It supports up to 8 boards simultaneously, providing a total of 128 I/O pins. Compatible with both 3.3V and 5V levels, it features easy address configuration and comes with development resources for popular platforms like Raspberry Pi, Arduino, and STM32.


| ASIN | B07P2H1NZG |
| Best Sellers Rank | #150,496 in Computers ( See Top 100 in Computers ) #2,423 in Single-Board Computers |
| Item model number | MCP23017 IO Expansion Board |
| Manufacturer | Waveshare |
| Package Dimensions | 9.1 x 5.2 x 2.1 cm; 20 g |
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