MUXIN-16 is a 16-Bit Digital Input Multiplexer for Arduino Compatible Boards, at it's heart there are two 74HC165 Shift Registers. Each Mux input has built-in 10k Pullup resistors making them really easy to wire directly to your Switches and Encoders or any other hardware that requires as digital input.
In addition you can chain multiple MUXIN-16 boards to increase your digital inputs! The limit of how many you can chain depends on the length of your wires and the strength of the signal, as you chain more boards there will be some signal loss.
You will only need to wire MUXIN-16 to your MCU via 5 wires, 3 Digital Pins (any digital pin on your board), VCC (3.3v or 5v depending on your MCU logic level) and GND.
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