~ruther/qmk_firmware

6dbc1b800fdcdc3af508886660808f0a7623e41a — Filip Strzałka 1 year, 4 months ago 5459397
[Keyboard] add arrowmechanics/wings (#23328)

Co-authored-by: Arrow Mechanics <filip@arrowmechanics.com>
Co-authored-by: Joel Challis <git@zvecr.com>
Co-authored-by: Drashna Jaelre <drashna@live.com>
A keyboards/arrowmechanics/wings/config.h => keyboards/arrowmechanics/wings/config.h +11 -0
@@ 0,0 1,11 @@
// Copyright 2024 Filip Strzałka (@philvec)
// SPDX-License-Identifier: GPL-3.0-or-later

#pragma once

#define SERIAL_USART_FULL_DUPLEX

#define AUDIO_PIN GP4
#define AUDIO_PWM_DRIVER PWMD2
#define AUDIO_PWM_CHANNEL RP2040_PWM_CHANNEL_A
#define AUDIO_INIT_DELAY

A keyboards/arrowmechanics/wings/halconf.h => keyboards/arrowmechanics/wings/halconf.h +9 -0
@@ 0,0 1,9 @@
// Copyright 2024 Filip Strzałka (@philvec)
// SPDX-License-Identifier: GPL-3.0-or-later

#pragma once

#include_next <halconf.h>

#undef HAL_USE_PWM
#define HAL_USE_PWM TRUE

A keyboards/arrowmechanics/wings/info.json => keyboards/arrowmechanics/wings/info.json +320 -0
@@ 0,0 1,320 @@
{
    "manufacturer": "Arrow Mechanics",
    "keyboard_name": "WINGS Mark 1",
    "maintainer": "arrowmechanics",
    "bootloader": "rp2040",
    "diode_direction": "ROW2COL",
    "encoder": {
        "rotary": [
            {"pin_a": "GP6", "pin_b": "GP7", "resolution": 2}
        ]
    },
    "features": {
        "audio": true,
        "bootmagic": true,
        "encoder": true,
        "extrakey": true,
        "mousekey": true,
        "rgb_matrix": true
    },
    "matrix_pins": {
        "cols": ["GP8", "GP9", "GP10", "GP11", "GP12", "GP13", "GP14", "GP15", "GP16"],
        "rows": ["GP22", "GP21", "GP20", "GP19", "GP18", "GP17"]
    },
    "processor": "RP2040",
    "rgb_matrix": {
        "animations": {
            "alphas_mods": true,
            "band_pinwheel_sat": true,
            "band_pinwheel_val": true,
            "band_sat": true,
            "band_spiral_sat": true,
            "band_spiral_val": true,
            "band_val": true,
            "breathing": true,
            "cycle_all": true,
            "cycle_left_right": true,
            "cycle_out_in": true,
            "cycle_out_in_dual": true,
            "cycle_pinwheel": true,
            "cycle_spiral": true,
            "cycle_up_down": true,
            "digital_rain": true,
            "dual_beacon": true,
            "gradient_left_right": true,
            "gradient_up_down": true,
            "hue_breathing": true,
            "hue_pendulum": true,
            "hue_wave": true,
            "jellybean_raindrops": true,
            "multisplash": true,
            "pixel_flow": true,
            "pixel_fractal": true,
            "pixel_rain": true,
            "rainbow_beacon": true,
            "rainbow_moving_chevron": true,
            "rainbow_pinwheels": true,
            "raindrops": true,
            "solid_multisplash": true,
            "solid_reactive": true,
            "solid_reactive_cross": true,
            "solid_reactive_multicross": true,
            "solid_reactive_multinexus": true,
            "solid_reactive_multiwide": true,
            "solid_reactive_nexus": true,
            "solid_reactive_simple": true,
            "solid_reactive_wide": true,
            "solid_splash": true,
            "splash": true,
            "typing_heatmap": true
        },
        "default": {
            "animation": "breathing",
            "hue": 192
        },
        "driver": "ws2812",
        "layout": [
            {"matrix": [0, 7], "x": 93, "y": 2, "flags": 4},
            {"matrix": [0, 6], "x": 80, "y": 1, "flags": 4},
            {"matrix": [0, 5], "x": 67, "y": 0, "flags": 4},
            {"matrix": [0, 4], "x": 54, "y": 1, "flags": 4},
            {"matrix": [0, 3], "x": 42, "y": 3, "flags": 4},
            {"matrix": [0, 2], "x": 29, "y": 5, "flags": 4},
            {"matrix": [0, 1], "x": 16, "y": 5, "flags": 4},
            {"matrix": [0, 0], "x": 3, "y": 5, "flags": 4},

            {"matrix": [1, 0], "x": 3, "y": 17, "flags": 4},
            {"matrix": [1, 1], "x": 16, "y": 17, "flags": 4},
            {"matrix": [1, 2], "x": 29, "y": 17, "flags": 4},
            {"matrix": [1, 3], "x": 42, "y": 15, "flags": 4},
            {"matrix": [1, 4], "x": 54, "y": 13, "flags": 4},
            {"matrix": [1, 5], "x": 67, "y": 12, "flags": 4},
            {"matrix": [1, 6], "x": 80, "y": 13, "flags": 4},
            {"matrix": [1, 7], "x": 93, "y": 14, "flags": 4},

            {"matrix": [2, 8], "x": 106, "y": 25, "flags": 4},
            {"matrix": [2, 7], "x": 93, "y": 25, "flags": 4},
            {"matrix": [2, 6], "x": 80, "y": 25, "flags": 4},
            {"matrix": [2, 5], "x": 67, "y": 24, "flags": 4},
            {"matrix": [2, 4], "x": 54, "y": 25, "flags": 4},
            {"matrix": [2, 3], "x": 42, "y": 27, "flags": 4},
            {"matrix": [2, 2], "x": 26, "y": 29, "flags": 4},
            {"matrix": [2, 0], "x": 6, "y": 29, "flags": 4},

            {"matrix": [3, 0], "x": 3, "y": 40, "flags": 4},
            {"matrix": [3, 2], "x": 22, "y": 40, "flags": 4},
            {"matrix": [3, 3], "x": 42, "y": 38, "flags": 4},
            {"matrix": [3, 4], "x": 54, "y": 36, "flags": 4},
            {"matrix": [3, 5], "x": 67, "y": 35, "flags": 4},
            {"matrix": [3, 6], "x": 80, "y": 36, "flags": 4},
            {"matrix": [3, 7], "x": 93, "y": 37, "flags": 4},
            {"matrix": [3, 8], "x": 106, "y": 37, "flags": 4},

            {"matrix": [4, 8], "x": 106, "y": 49, "flags": 4},
            {"matrix": [4, 7], "x": 93, "y": 49, "flags": 4},
            {"matrix": [4, 6], "x": 80, "y": 48, "flags": 4},
            {"matrix": [4, 5], "x": 67, "y": 47, "flags": 4},
            {"matrix": [4, 4], "x": 54, "y": 48, "flags": 4},
            {"matrix": [4, 3], "x": 42, "y": 50, "flags": 4},
            {"matrix": [4, 1], "x": 21, "y": 52, "flags": 4},
            {"matrix": [4, 0], "x": 0, "y": 52, "flags": 4},

            {"matrix": [5, 0], "x": 0, "y": 64, "flags": 4},
            {"matrix": [5, 1], "x": 13, "y": 64, "flags": 4},
            {"matrix": [5, 2], "x": 26, "y": 64, "flags": 4},
            {"matrix": [5, 3], "x": 43, "y": 62, "flags": 4},
            {"matrix": [5, 4], "x": 59, "y": 60, "flags": 4},
            {"matrix": [5, 6], "x": 75, "y": 60, "flags": 4},
            {"matrix": [5, 7], "x": 98, "y": 61, "flags": 4},

            {"matrix": [6, 1], "x": 131, "y": 2, "flags": 4},
            {"matrix": [6, 2], "x": 144, "y": 1, "flags": 4},
            {"matrix": [6, 3], "x": 157, "y": 0, "flags": 4},
            {"matrix": [6, 4], "x": 170, "y": 1, "flags": 4},
            {"matrix": [6, 5], "x": 182, "y": 3, "flags": 4},
            {"matrix": [6, 6], "x": 195, "y": 5, "flags": 4},
            {"matrix": [6, 7], "x": 208, "y": 5, "flags": 4},
            {"matrix": [6, 8], "x": 221, "y": 5, "flags": 4},

            {"matrix": [7, 8], "x": 214, "y": 17, "flags": 4},
            {"matrix": [7, 6], "x": 195, "y": 17, "flags": 4},
            {"matrix": [7, 5], "x": 182, "y": 15, "flags": 4},
            {"matrix": [7, 4], "x": 170, "y": 13, "flags": 4},
            {"matrix": [7, 3], "x": 157, "y": 12, "flags": 4},
            {"matrix": [7, 2], "x": 144, "y": 13, "flags": 4},
            {"matrix": [7, 1], "x": 131, "y": 14, "flags": 4},

            {"matrix": [8, 0], "x": 118, "y": 25, "flags": 4},
            {"matrix": [8, 1], "x": 131, "y": 25, "flags": 4},
            {"matrix": [8, 2], "x": 144, "y": 25, "flags": 4},
            {"matrix": [8, 3], "x": 157, "y": 24, "flags": 4},
            {"matrix": [8, 4], "x": 170, "y": 25, "flags": 4},
            {"matrix": [8, 5], "x": 182, "y": 27, "flags": 4},
            {"matrix": [8, 6], "x": 195, "y": 29, "flags": 4},
            {"matrix": [8, 7], "x": 208, "y": 29, "flags": 4},
            {"matrix": [8, 8], "x": 221, "y": 29, "flags": 4},

            {"matrix": [9, 8], "x": 216, "y": 40, "flags": 4},
            {"matrix": [9, 6], "x": 195, "y": 40, "flags": 4},
            {"matrix": [9, 5], "x": 182, "y": 38, "flags": 4},
            {"matrix": [9, 4], "x": 170, "y": 36, "flags": 4},
            {"matrix": [9, 3], "x": 157, "y": 35, "flags": 4},
            {"matrix": [9, 2], "x": 144, "y": 36, "flags": 4},
            {"matrix": [9, 1], "x": 131, "y": 37, "flags": 4},
            {"matrix": [9, 0], "x": 118, "y": 37, "flags": 4},

            {"matrix": [10, 0], "x": 118, "y": 49, "flags": 4},
            {"matrix": [10, 1], "x": 131, "y": 49, "flags": 4},
            {"matrix": [10, 2], "x": 144, "y": 48, "flags": 4},
            {"matrix": [10, 3], "x": 157, "y": 47, "flags": 4},
            {"matrix": [10, 4], "x": 170, "y": 48, "flags": 4},
            {"matrix": [10, 5], "x": 182, "y": 50, "flags": 4},
            {"matrix": [10, 6], "x": 197, "y": 52, "flags": 4},
            {"matrix": [10, 7], "x": 211, "y": 52, "flags": 4},
            {"matrix": [10, 8], "x": 224, "y": 52, "flags": 4},

            {"matrix": [11, 8], "x": 224, "y": 64, "flags": 4},
            {"matrix": [11, 7], "x": 211, "y": 64, "flags": 4},
            {"matrix": [11, 6], "x": 198, "y": 64, "flags": 4},
            {"matrix": [11, 5], "x": 181, "y": 62, "flags": 4},
            {"matrix": [11, 4], "x": 165, "y": 60, "flags": 4},
            {"matrix": [11, 2], "x": 149, "y": 60, "flags": 4},
            {"matrix": [11, 1], "x": 126, "y": 61, "flags": 4}
        ],
        "split_count": [47, 48]
    },
    "split": {
        "enabled": true,
        "transport": {
            "sync": {
                "layer_state": true,
                "matrix_state": true
            }
        }
    },
    "tags": ["columnar", "split", "rgb", "hotswap", "encoder"],
    "url": "https://arrowmechanics.com",
    "usb": {
        "device_version": "1.0.0",
        "pid": "0x3134",
        "vid": "0xA880"
    },
    "ws2812": {
        "driver": "vendor",
        "pin": "GP26"
    },
    "layouts": {
        "LAYOUT": {
            "layout": [
                {"matrix": [0, 0], "x": 0.25, "y": 0.43},
                {"matrix": [0, 1], "x": 1.25, "y": 0.43},
                {"matrix": [0, 2], "x": 2.25, "y": 0.43},
                {"matrix": [0, 3], "x": 3.25, "y": 0.25},
                {"matrix": [0, 4], "x": 4.25, "y": 0.08},
                {"matrix": [0, 5], "x": 5.25, "y": 0},
                {"matrix": [0, 6], "x": 6.25, "y": 0.08},
                {"matrix": [0, 7], "x": 7.25, "y": 0.15},

                {"matrix": [6, 1], "x": 10.45, "y": 0.15},
                {"matrix": [6, 2], "x": 11.45, "y": 0.08},
                {"matrix": [6, 3], "x": 12.45, "y": 0},
                {"matrix": [6, 4], "x": 13.45, "y": 0.08},
                {"matrix": [6, 5], "x": 14.45, "y": 0.25},
                {"matrix": [6, 6], "x": 15.45, "y": 0.43},
                {"matrix": [6, 7], "x": 16.45, "y": 0.43},
                {"matrix": [6, 8], "x": 17.45, "y": 0.43},

                {"matrix": [1, 0], "x": 0.25, "y": 1.43},
                {"matrix": [1, 1], "x": 1.25, "y": 1.43},
                {"matrix": [1, 2], "x": 2.25, "y": 1.43},
                {"matrix": [1, 3], "x": 3.25, "y": 1.25},
                {"matrix": [1, 4], "x": 4.25, "y": 1.08},
                {"matrix": [1, 5], "x": 5.25, "y": 1},
                {"matrix": [1, 6], "x": 6.25, "y": 1.08},
                {"matrix": [1, 7], "x": 7.25, "y": 1.15},
                {"matrix": [1, 8], "x": 8.25, "y": 1.15, "encoder": 0},

                {"matrix": [7, 0], "x": 9.45, "y": 1.15},
                {"matrix": [7, 1], "x": 10.45, "y": 1.15},
                {"matrix": [7, 2], "x": 11.45, "y": 1.08},
                {"matrix": [7, 3], "x": 12.45, "y": 1},
                {"matrix": [7, 4], "x": 13.45, "y": 1.08},
                {"matrix": [7, 5], "x": 14.45, "y": 1.25},
                {"matrix": [7, 6], "x": 15.45, "y": 1.43},
                {"matrix": [7, 8], "x": 16.45, "y": 1.43, "w": 2},

                {"matrix": [2, 0], "x": 0.25, "y": 2.43, "w": 1.5},
                {"matrix": [2, 2], "x": 1.75, "y": 2.43, "w": 1.5},
                {"matrix": [2, 3], "x": 3.25, "y": 2.25},
                {"matrix": [2, 4], "x": 4.25, "y": 2.08},
                {"matrix": [2, 5], "x": 5.25, "y": 2},
                {"matrix": [2, 6], "x": 6.25, "y": 2.08},
                {"matrix": [2, 7], "x": 7.25, "y": 2.15},
                {"matrix": [2, 8], "x": 8.25, "y": 2.15},

                {"matrix": [8, 0], "x": 9.45, "y": 2.15},
                {"matrix": [8, 1], "x": 10.45, "y": 2.15},
                {"matrix": [8, 2], "x": 11.45, "y": 2.08},
                {"matrix": [8, 3], "x": 12.45, "y": 2},
                {"matrix": [8, 4], "x": 13.45, "y": 2.08},
                {"matrix": [8, 5], "x": 14.45, "y": 2.25},
                {"matrix": [8, 6], "x": 15.45, "y": 2.43},
                {"matrix": [8, 7], "x": 16.45, "y": 2.43},
                {"matrix": [8, 8], "x": 17.45, "y": 2.43},

                {"matrix": [3, 0], "x": 0, "y": 3.43, "w": 1.5},
                {"matrix": [3, 2], "x": 1.5, "y": 3.43, "w": 1.75},
                {"matrix": [3, 3], "x": 3.25, "y": 3.25},
                {"matrix": [3, 4], "x": 4.25, "y": 3.08},
                {"matrix": [3, 5], "x": 5.25, "y": 3},
                {"matrix": [3, 6], "x": 6.25, "y": 3.08},
                {"matrix": [3, 7], "x": 7.25, "y": 3.15},
                {"matrix": [3, 8], "x": 8.25, "y": 3.15},

                {"matrix": [9, 0], "x": 9.45, "y": 3.15},
                {"matrix": [9, 1], "x": 10.45, "y": 3.15},
                {"matrix": [9, 2], "x": 11.45, "y": 3.08},
                {"matrix": [9, 3], "x": 12.45, "y": 3},
                {"matrix": [9, 4], "x": 13.45, "y": 3.08},
                {"matrix": [9, 5], "x": 14.45, "y": 3.25},
                {"matrix": [9, 6], "x": 15.45, "y": 3.43},
                {"matrix": [9, 8], "x": 16.45, "y": 3.43, "w": 2.25},

                {"matrix": [4, 0], "x": 0, "y": 4.43},
                {"matrix": [4, 1], "x": 1, "y": 4.43, "w": 2.25},
                {"matrix": [4, 3], "x": 3.25, "y": 4.25},
                {"matrix": [4, 4], "x": 4.25, "y": 4.08},
                {"matrix": [4, 5], "x": 5.25, "y": 4},
                {"matrix": [4, 6], "x": 6.25, "y": 4.08},
                {"matrix": [4, 7], "x": 7.25, "y": 4.15},
                {"matrix": [4, 8], "x": 8.25, "y": 4.15},

                {"matrix": [10, 0], "x": 9.45, "y": 4.15},
                {"matrix": [10, 1], "x": 10.45, "y": 4.15},
                {"matrix": [10, 2], "x": 11.45, "y": 4.08},
                {"matrix": [10, 3], "x": 12.45, "y": 4},
                {"matrix": [10, 4], "x": 13.45, "y": 4.08},
                {"matrix": [10, 5], "x": 14.45, "y": 4.25},
                {"matrix": [10, 6], "x": 15.45, "y": 4.43, "w": 1.25},
                {"matrix": [10, 7], "x": 16.7, "y": 4.43},
                {"matrix": [10, 8], "x": 17.7, "y": 4.43},

                {"matrix": [5, 0], "x": 0, "y": 5.43},
                {"matrix": [5, 1], "x": 1, "y": 5.43},
                {"matrix": [5, 2], "x": 2, "y": 5.43},
                {"matrix": [5, 3], "x": 3.25, "y": 5.25, "w": 1.25},
                {"matrix": [5, 4], "x": 4.5, "y": 5.08, "w": 1.25},
                {"matrix": [5, 6], "x": 5.75, "y": 5.08, "w": 1.25},
                {"matrix": [5, 7], "x": 7, "y": 5.15, "w": 2.25},

                {"matrix": [11, 1], "x": 9.45, "y": 5.15, "w": 2.25},
                {"matrix": [11, 2], "x": 11.7, "y": 5.08, "w": 1.25},
                {"matrix": [11, 4], "x": 12.95, "y": 5.08, "w": 1.25},
                {"matrix": [11, 5], "x": 14.2, "y": 5.25, "w": 1.25},
                {"matrix": [11, 6], "x": 15.7, "y": 5.43},
                {"matrix": [11, 7], "x": 16.7, "y": 5.43},
                {"matrix": [11, 8], "x": 17.7, "y": 5.43}
            ]
        }
    }
}

A keyboards/arrowmechanics/wings/keymaps/default/keymap.c => keyboards/arrowmechanics/wings/keymaps/default/keymap.c +25 -0
@@ 0,0 1,25 @@
// Copyright 2024 Filip Strzałka (@philvec)
// SPDX-License-Identifier: GPL-3.0-or-later

#include QMK_KEYBOARD_H

enum layers {
    BASE,
};

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    [BASE] = LAYOUT(
        KC_VOLU, KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,    KC_F7,                            KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_EQL,   KC_PSCR,  KC_DEL,
        KC_VOLD, KC_ESC,  KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,     KC_5,   RGB_MOD,        KC_BTN1,  KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS,       KC_BSPC,
        KC_MPLY,       KC_TAB,     KC_Q,    KC_W,    KC_E,    KC_R,     KC_T,   C(KC_C),        C(KC_V),  KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC,  KC_RBRC,  KC_BSLS,
        KC_MNXT,      KC_CAPS,     KC_A,    KC_S,    KC_D,    KC_F,     KC_G,   C(KC_Z),        C(KC_Y),  KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT,       KC_ENT,
        KC_MPRV,      KC_LSFT,     KC_Z,    KC_X,    KC_C,    KC_V,     KC_B,   KC_ENT,         KC_ENT,   KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT,  KC_UP,    KC_HOME,
        KC_LCTL, KC_NO,   KC_NO,            KC_LCTL, KC_LCMD, KC_LALT,      KC_SPC,                  KC_SPC,       KC_RALT, KC_RCMD, KC_RCTL,          KC_LEFT,  KC_DOWN,  KC_RGHT
    )
};

#if defined(ENCODER_MAP_ENABLE)
const uint16_t PROGMEM encoder_map[][NUM_ENCODERS][NUM_DIRECTIONS] = {
    [BASE] =   { ENCODER_CCW_CW(RGB_HUI, RGB_HUD), ENCODER_CCW_CW(KC_WH_U, KC_WH_D) },
};
#endif

A keyboards/arrowmechanics/wings/keymaps/default/rules.mk => keyboards/arrowmechanics/wings/keymaps/default/rules.mk +1 -0
@@ 0,0 1,1 @@
ENCODER_MAP_ENABLE = yes

A keyboards/arrowmechanics/wings/mcuconf.h => keyboards/arrowmechanics/wings/mcuconf.h +9 -0
@@ 0,0 1,9 @@
// Copyright 2024 Filip Strzałka (@philvec)
// SPDX-License-Identifier: GPL-3.0-or-later

#pragma once

#include_next <mcuconf.h>

#undef RP_PWM_USE_PWM2
#define RP_PWM_USE_PWM2 TRUE

A keyboards/arrowmechanics/wings/readme.md => keyboards/arrowmechanics/wings/readme.md +29 -0
@@ 0,0 1,29 @@
# Arrow Mechanics WINGS Mark 1

![Arrow Mechanics WINGS Mark 1](https://i.imgur.com/oQkDmSu.png)

ErgoDox-inspired SPLIT keyboard by [Arrow Mechanics](https://www.arrowmechanics.com/)
	
* 94 GATERON Low Profile 2.0 hotswap sockets
* RGB diode under each key for WS2812-driven lighting with [RGB Matrix](https://docs.qmk.fm/#/feature_rgb_matrix)
* 2 rotary encoders, one per half, with push-switches
* Buzzers for sound effects and/or [Music Mode](https://docs.qmk.fm/#/feature_audio?id=music-mode)
* Handy magnetic connectors for joining the halves together or splitting with the use of dedicated cable
* Anti-slip pads with magnetic expanding-legs for conveniently adjusting height/lean
* RP2040 Chip + 16MB Flash memory - Dual-core Cortex M0+
---
* Keyboard Maintainer: [arrowmechanics](https://github.com/arrowmechanics/)
* Hardware Supported: [Arrow Mechanics WINGS Keyboard set](https://www.arrowmechanics.com/produkty?view=product&id=8)
* Hardware Availability: [Official Arrow Mechanics E-SHOP](https://www.arrowmechanics.com/produkty?view=product&id=8)

Flashing example for this keyboard:

    qmk flash -kb arrowmechanics/wings -km default

See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).

## Bootloader

Enter the bootloader in 2 ways:
* **Bootmagic reset**: Hold down the top-left corner key on power-up.
* **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available

A keyboards/arrowmechanics/wings/rules.mk => keyboards/arrowmechanics/wings/rules.mk +2 -0
@@ 0,0 1,2 @@
SERIAL_DRIVER = vendor
AUDIO_DRIVER = pwm_hardware