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• 07:50, 24 August 2025 Visuino talk contribs created page Texas Instruments PCA9554 GPIO(I2C) (Created page with "Image:TArduinoPCA9554.png == Summary == I2C-controlled GPIO expander with 8 channels, configurable as inputs or outputs with optional inversion. == Description == The **PCA9554** component allows 8 GPIO channels to be controlled via I2C. Each channel can be configured individually as an input or output, with options for inverted logic. This makes it useful for expanding the number of digital I/O pins on a microcontroller, controlling LEDs, buttons, or oth...")