Buttons and Rotary Add-ons

Last modified: 10 August 2024

Optional Add-on : The "Select"/middle button

An additional button can be connected to the Gotek JA jumper position. Needed if you want to browse the USB stick files images with the LCD and the button (Normal mode). EDIT : Now optional since the firmware v3.0.21.1a

Gotek HxC firmware buttons and rotary wiring

Optional Add-on : Rotary switch / Blackberry trackball

You can connect a Rotary switch to the J7 connector (Same connector used for the screens connection).

"Direction / Dir" → J7 pin 1. (near the "JK" marking on the PCB)
"Clock / Ck" → J7 pin 2.
- "Dir" & "Ck" position on J7 :

                           _____|
                          |     |
                          | USB |
                          |_____|
    Dir OO Ck___________________|
    SDA OO|SCL
    GND OO|VCC3V3
        J7|
          |
__________|

If your rotary switch have also a push-button, you can connect it as the select button to the "JA" jumper position

Wiring example :

High resolution picture !

Note	Yellow and brown wires can be exchanged to set the rotary clockwise or counterclockwise.

Note	The Red wire is only needed when your rotary have some pull-up resistor on its PCB.

Note	Since 2021 some new Gotek PCBs have now a specific connector for the rotary. If this port is available on your Gotek, please use the following wiring instead :

Last modified: 10 August 2024

HxC Floppy Emulator project

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