Add printedpad keyboard (#21202)

Co-authored-by: jack <0x6a73@protonmail.com>
Co-authored-by: Drashna Jaelre <drashna@live.com>

keyboards/printedpad/config.h

@@ -0,0 +1,15 @@
+// Copyright 2023 Noah Beidelman (@noahbei)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#define I2C_DRIVER I2CD1
+#define I2C1_SCL_PAL_MODE 1
+#define I2C1_SDA_PAL_MODE 1
+#define I2C1_TIMINGR_PRESC 0x00U
+#define I2C1_TIMINGR_SCLDEL 0x03U
+#define I2C1_TIMINGR_SDADEL 0x01U
+#define I2C1_TIMINGR_SCLH 0x03U
+#define I2C1_TIMINGR_SCLL 0x09U
+
+#define OLED_TIMEOUT 300000

keyboards/printedpad/halconf.h

@@ -0,0 +1,8 @@
+// Copyright 2023 Noah Beidelman (@noahbei)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#define HAL_USE_I2C TRUE
+
+#include_next <halconf.h>

keyboards/printedpad/info.json

@@ -0,0 +1,46 @@
+{
+    "manufacturer": "Prota Designs",
+    "keyboard_name": "Printed Pad",
+    "maintainer": "noahbei",
+    "bootloader": "stm32-dfu",
+    "diode_direction": "COL2ROW",
+    "features": {
+        "bootmagic": true,
+        "command": false,
+        "console": false,
+        "extrakey": true,
+        "mousekey": true,
+        "nkro": true,
+        "oled": true
+    },
+    "matrix_pins": {
+        "cols": ["B2", "B1", "B0"],
+        "rows": ["A10", "C9", "A8", "A9"]
+    },
+    "processor": "STM32F072",
+    "url": "",
+    "usb": {
+        "device_version": "1.0.0",
+        "pid": "0x0001",
+        "vid": "0x5044"
+    },
+    "layouts": {
+        "LAYOUT": {
+            "layout": [
+                { "matrix": [0, 0], "x": 0, "y": 0 },
+                
+                { "matrix": [1, 0], "x": 0, "y": 1 },
+                { "matrix": [1, 1], "x": 1, "y": 1 },
+                { "matrix": [1, 2], "x": 2, "y": 1 },
+                
+                { "matrix": [2, 0], "x": 0, "y": 2 },
+                { "matrix": [2, 1], "x": 1, "y": 2 },
+                { "matrix": [2, 2], "x": 2, "y": 2 },
+                
+                { "matrix": [3, 0], "x": 0, "y": 3 },
+                { "matrix": [3, 1], "x": 1, "y": 3 },
+                { "matrix": [3, 2], "x": 2, "y": 3 }
+            ]
+        }
+    }
+}

keyboards/printedpad/keymaps/default/keymap.c

@@ -0,0 +1,45 @@
+// Copyright 2023 Noah Beidelman (@noahbei)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    /*
+     * ┌───┐
+     * │Tog│ 
+     * ├───┼───┬───┐ 
+     * │ 7 │ 8 │ 9 │
+     * ├───┼───┼───┤
+     * │ 4 │ 5 │ 6 │
+     * ├───┼───┼───┤
+     * │ 1 │ 2 │ 3 │ 
+     * └───┴───┴───┘
+     */
+    [0] = LAYOUT(
+        LT(0, KC_NO),
+        KC_7,   KC_8,   KC_9,
+        KC_4,   KC_5,   KC_6,
+        KC_1,   KC_2,   KC_3
+    ),
+
+    [1] = LAYOUT(
+        LT(0, KC_NO),
+        KC_A,   KC_B,   KC_C,
+        KC_D,   KC_E,   KC_F,
+        KC_G,   KC_H,   KC_I
+    ),
+
+    [2] = LAYOUT(
+        LT(0, KC_NO),
+        KC_J,   KC_K,   KC_L,
+        KC_M,   KC_N,   KC_O,
+        KC_P,   KC_Q,   KC_R
+    ),
+
+    [3] = LAYOUT(
+        LT(0, KC_NO),
+        KC_S,   KC_T,   KC_U,
+        KC_V,   KC_W,   KC_X,
+        KC_Y,   KC_Z,   KC_ENT
+    )
+};

keyboards/printedpad/keymaps/via/keymap.c

@@ -0,0 +1,45 @@
+// Copyright 2023 Noah Beidelman (@noahbei)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    /*
+     * ┌───┐
+     * │Tog│ 
+     * ├───┼───┬───┐ 
+     * │ 7 │ 8 │ 9 │
+     * ├───┼───┼───┤
+     * │ 4 │ 5 │ 6 │
+     * ├───┼───┼───┤
+     * │ 1 │ 2 │ 3 │ 
+     * └───┴───┴───┘
+     */
+    [0] = LAYOUT(
+        LT(0, KC_NO),
+        KC_7,   KC_8,   KC_9,
+        KC_4,   KC_5,   KC_6,
+        KC_1,   KC_2,   KC_3
+    ),
+
+    [1] = LAYOUT(
+        LT(0, KC_NO),
+        KC_A,   KC_B,   KC_C,
+        KC_D,   KC_E,   KC_F,
+        KC_G,   KC_H,   KC_I
+    ),
+
+    [2] = LAYOUT(
+        LT(0, KC_NO),
+        KC_J,   KC_K,   KC_L,
+        KC_M,   KC_N,   KC_O,
+        KC_P,   KC_Q,   KC_R
+    ),
+
+    [3] = LAYOUT(
+        LT(0, KC_NO),
+        KC_S,   KC_T,   KC_U,
+        KC_V,   KC_W,   KC_X,
+        KC_Y,   KC_Z,   KC_ENT
+    )
+};

keyboards/printedpad/keymaps/via/rules.mk

@@ -0,0 +1 @@
+VIA_ENABLE = yes

keyboards/printedpad/mcuconf.h

@@ -0,0 +1,9 @@
+// Copyright 2023 Noah Beidelman (@noahbei)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include_next <mcuconf.h>
+
+#undef STM32_I2C_USE_I2C1
+#define STM32_I2C_USE_I2C1 TRUE

keyboards/printedpad/printedpad.c

@@ -0,0 +1,57 @@
+// Copyright 2023 Noah Beidelman (@noahbei)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include QMK_KEYBOARD_H
+#include "printedpad.h"
+
+void board_init(void) {
+  SYSCFG->CFGR1 |= SYSCFG_CFGR1_I2C1_DMA_RMP;
+}
+
+const uint8_t max_layer = 3;
+uint8_t current_display_mode = 0;
+
+bool key_pressed = false;
+
+bool process_record_kb(uint16_t keycode, keyrecord_t *record) {
+    if (!process_record_user(keycode, record)) {
+        return false;
+    }
+#ifdef OLED_ENABLE
+    key_pressed = record->event.pressed;
+#endif
+    switch(keycode) {
+        case LT(0, KC_NO):
+            if (record->event.pressed) {
+                // on tap
+                if (record->tap.count) {
+                    if (get_highest_layer(layer_state) >= max_layer) {
+                        layer_clear(); 
+                    } else { 
+                        layer_move(get_highest_layer(layer_state) + 1);
+                    }
+                }
+#ifdef OLED_ENABLE
+                // on hold
+                else {
+                    current_display_mode = (current_display_mode + 1) % 3;
+                }
+#endif
+            }
+            return false;
+    }
+    return true;
+}
+
+#ifdef OLED_ENABLE
+uint32_t flash_timer = 0;
+bool layer_changed = false;
+
+// when the layer is changed, flash the layer number on the screen
+layer_state_t layer_state_set_kb(layer_state_t state) {
+    flash_timer = timer_read();
+    layer_changed = true;
+    
+    return layer_state_set_user(state);
+}
+#endif

keyboards/printedpad/printedpad.h

@@ -0,0 +1,16 @@
+// Copyright 2023 Noah Beidelman (@noahbei)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "quantum.h"
+
+//for oled key press
+extern bool key_pressed;
+
+// for changing oled display mode
+extern uint8_t current_display_mode;
+
+//for determining when the layer is changed and having a timer for how long we flash the layer
+extern uint32_t flash_timer;
+extern bool layer_changed;

keyboards/printedpad/readme.md

@@ -0,0 +1,25 @@
+# Printed Pad
+
+![magtray4x3](https://i.imgur.com/TBpZzIoh.jpeg)
+
+* Keyboard Maintainer: [noahbei](https://github.com/noahbei)
+* Hardware Supported: STM32F072RBT6
+* Hardware Availability: https://protadesigns.com/products/printed-pad
+
+Make example for this keyboard (after setting up your build environment):
+
+    make printedpad:default
+
+Flashing example for this keyboard:
+
+    make printedpad:default:flash
+
+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 3 ways:
+
+* **Bootmagic reset**: Hold down the key at (0,0) in the matrix (usually the top left key or Escape) and plug in the keyboard
+* **Physical reset button**: Briefly press the button on the back of the PCB - some may have pads you must short instead
+* **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available

keyboards/printedpad/rules.mk

@@ -0,0 +1 @@
+SRC += oled.c