zmk/app/boards/shields/knob_goblin/knob_goblin.overlay

/*
 * Copyright (c) 2022 The ZMK Contributors
 *
 * SPDX-License-Identifier: MIT
 */

#include <dt-bindings/zmk/matrix_transform.h>

/ {
    chosen {
        zephyr,display = &oled;
        zmk,kscan = &kscan0;
    };

    kscan0: kscan {
        compatible = "zmk,kscan-gpio-matrix";
        wakeup-source;

        diode-direction = "col2row";

         row-gpios
            = <&pro_micro  4 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
            , <&pro_micro 10 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
            , <&pro_micro 16 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
            , <&pro_micro 14 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
            , <&pro_micro 15 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
            ;

        col-gpios
            = <&pro_micro 9 GPIO_ACTIVE_HIGH>
            , <&pro_micro 8 GPIO_ACTIVE_HIGH>
            , <&pro_micro 7 GPIO_ACTIVE_HIGH>
            , <&pro_micro 6 GPIO_ACTIVE_HIGH>
            , <&pro_micro 5 GPIO_ACTIVE_HIGH>
            ;
    };

    top_encoder: encoder_top {
        compatible = "alps,ec11";
        a-gpios = <&pro_micro 19 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
        b-gpios = <&pro_micro 18 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
        steps = <80>;
        status = "okay";
    };

    bottom_encoder: encoder_bottom {
        compatible = "alps,ec11";
        a-gpios = <&pro_micro 20 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
        b-gpios = <&pro_micro 21 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
        steps = <80>;
        status = "okay";
    };

    sensors: sensors {
        compatible = "zmk,keymap-sensors";
        sensors = <&top_encoder &bottom_encoder>;
        triggers-per-rotation = <20>;
    };

};

&pro_micro_i2c {
    status = "okay";

    oled: ssd1306@3c {
        compatible = "solomon,ssd1306fb";
        reg = <0x3c>;
        width = <128>;
        height = <32>;
        segment-offset = <0>;
        page-offset = <0>;
        display-offset = <0>;
        multiplex-ratio = <31>;
        segment-remap;
        com-invdir;
        com-sequential;
        inversion-on;
        prechargep = <0x22>;
    };
};