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 ...
Smart home systems are a new design development that has been started to be developed recently and is expected to spread widely in the future. In addition, smart home systems can not only turn devices ...
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