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Character_LCD_I2C: add support for PCF8574 I2C expander backpack #81

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Character_LCD_I2C: speed up PCF8574 by setting all GPIO bits at once

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Character_LCD_I2C: add support for PCF8574 I2C expander backpack #81

Character_LCD_I2C: speed up PCF8574 by setting all GPIO bits at once
a42d230
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succeeded Mar 8, 2026 in 1m 3s