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The I2CKeyPad8x8 library implements the reading of a 8x8 keypad by means of a PCF8575. Smaller keypads, meaning less columns or rows (e.g. 5x4) can be read with it too. Sometimes you need to control ...

Library for the ADG728 1 to 8 channel multiplexer. The library allows you to enable 0 to 8 channels uniquely or simultaneously. In fact the ADG728 is therefore a switch, although often named a ...