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Input/Output Boards

Inputs utilize 12v keying for reliability. A board typically handles 64 inputs as there are 61 keys on the typical organ manual. Outputs are open collector in most cases in order for 3.3v circuits to sink 12v loads such as lamps and relays. For moving drawknobs we recommend power MOSFET switching and will be reworking previous boards to provide drawknob level switching on single boards, likely in 32 circuit configurations. That would drive 32 SAMs with their 64 coils.

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Input Board

This input board is for one manual or up to 64 pistons using 12v keying. It features SPI connectivity to an encoder and a second port to connect additional boards.

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Input-Output.jpg
Input-Output.jpg

Input/output Board

This input/output board has 64 inputs along the bottom edge and 64 open collector outputs along the top. 12v keying and outputs intended to drive lamps, LEDs, or small relays up to 12v.

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