Input shift registers
Input shift registers
When building panels, you may encounter situations where you have more buttons for input than available pins on your board. Input shift registers like the 74HC165 allow you to read input from eight buttons while only using three pins on the board.
For information on how many input shift registers can be connected to a board, see the boards documentation.
Important
MobiFlight only supports connecting buttons to input shift registers. Encoders must be connected directly to a board.
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The chip is available anywhere you buy electronics, including Amazon, eBay, AliExpress, Tayda Electronics and many other parts suppliers.