Add support for MCU PCB replacement for Razer Orbweaver gaming keypad

keyboards/lostdotfish/rp2040_orbweaver/config.h

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+/* Copyright 2024 lostdotfish
+*
+* This program is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 2 of the License, or
+* (at your option) any later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+#define I2C_DRIVER I2CD0
+#define I2C1_SDA_PIN GP12
+#define I2C1_SCL_PIN GP13
+#define IS31FL3731_I2C_ADDRESS_1 IS31FL3731_I2C_ADDRESS_GND

keyboards/lostdotfish/rp2040_orbweaver/keyboard.json

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+
+{
+    "manufacturer": "Lostdotfish",
+    "keyboard_name": "rp2040_orbweaver",
+    "maintainer": "Lostdotfish",
+    "url": "https://geekhack.org/index.php?topic=124092.0",
+    "bootloader": "rp2040",
+    "processor": "RP2040",
+    "usb": {
+        "device_version": "1.0.0",
+        "pid": "0x0000",
+        "vid": "0xFEED"
+    },
+    "diode_direction": "ROW2COL",
+    "features": {
+        "bootmagic": true,
+        "command": false,
+        "console": false,
+        "extrakey": true,
+        "mousekey": true,
+        "nkro": true,
+        "rgb_matrix": true
+    },
+    "rgb_matrix": {
+        "driver": "is31fl3731",
+        "layout": [
+            {"matrix": [0, 0], "x": 0, "y": 0, "flags": 4},
+            {"x": 20, "y": 0, "flags": 4},
+            {"matrix": [0, 1], "x": 40, "y": 0, "flags": 4},
+            {"matrix": [0, 2], "x": 60, "y": 0, "flags": 4},
+            {"matrix": [0, 3], "x": 80, "y": 0, "flags": 4},
+            {"matrix": [0, 4], "x": 0, "y": 20, "flags": 4},
+            {"matrix": [1, 0], "x": 20, "y": 20, "flags": 4},
+            {"matrix": [1, 1], "x": 40, "y": 20, "flags": 4},
+            {"matrix": [1, 2], "x": 60, "y": 20, "flags": 4},
+            {"matrix": [1, 3], "x": 80, "y": 20, "flags": 4},
+            {"matrix": [1, 4], "x": 0, "y": 40, "flags": 4},
+            {"matrix": [2, 0], "x": 20, "y": 40, "flags": 4},
+            {"matrix": [2, 1], "x": 40, "y": 40, "flags": 4},
+            {"matrix": [2, 2], "x": 60, "y": 40, "flags": 4},
+            {"matrix": [2, 3], "x": 80, "y": 40, "flags": 4},
+            {"matrix": [2, 4], "x": 0, "y": 60, "flags": 4},
+            {"matrix": [3, 0], "x": 20, "y": 60, "flags": 4},
+            {"matrix": [3, 1], "x": 40, "y": 60, "flags": 4},
+            {"matrix": [3, 2], "x": 60, "y": 60, "flags": 4},
+            {"matrix": [3, 4], "x": 80, "y": 60, "flags": 4}
+        ],
+        "led_flush_limit": 26,
+        "led_process_limit": 5,
+        "max_brightness": 220,
+        "sleep": true,
+        "center_point": [40, 30],
+        "animations": {
+            "alphas_mods": true,
+            "gradient_up_down": true,
+            "gradient_left_right": true,
+            "breathing": true,
+            "band_sat": true,
+            "band_val": true,
+            "band_pinwheel_sat": true,
+            "band_pinwheel_val": true,
+            "band_spiral_sat": true,
+            "band_spiral_val": true,
+            "cycle_all": true,
+            "cycle_left_right": true,
+            "cycle_up_down": true,
+            "cycle_out_in": true,
+            "cycle_out_in_dual": true,
+            "rainbow_moving_chevron": true,
+            "cycle_pinwheel": true,
+            "cycle_spiral": true,
+            "dual_beacon": true,
+            "rainbow_beacon": true,
+            "rainbow_pinwheels": true,
+            "flower_blooming": true,
+            "raindrops": true,
+            "jellybean_raindrops": true,
+            "hue_breathing": true,
+            "hue_pendulum": true,
+            "hue_wave": true,
+            "pixel_fractal": true,
+            "pixel_flow": true,
+            "pixel_rain": true,
+            "typing_heatmap": true,
+            "digital_rain": true,
+            "solid_reactive_simple": true,
+            "solid_reactive": true,
+            "solid_reactive_wide": true,
+            "solid_reactive_multiwide": true,
+            "solid_reactive_cross": true,
+            "solid_reactive_multicross": true,
+            "solid_reactive_nexus": true,
+            "solid_reactive_multinexus": true,
+            "splash": true,
+            "multisplash": true,
+            "solid_splash": true,
+            "solid_multisplash": true,
+            "starlight": true,
+            "starlight_dual_sat": true,
+            "starlight_dual_hue": true,
+            "riverflow": true
+},
+},
+    "matrix_pins": {
+        "rows": ["GP0", "GP1", "GP2", "GP3", "GP10", "GP9"],
+        "cols": ["GP4", "GP5", "GP8", "GP7", "GP6"]
+    },
+
+    "layouts": {
+        "LAYOUT": {
+            "layout": [
+                {"matrix": [0, 0], "x": 0, "y": 0},
+                {"matrix": [0, 1], "x": 1, "y": 0},
+                {"matrix": [0, 2], "x": 2, "y": 0},
+                {"matrix": [0, 3], "x": 3, "y": 0},
+                {"matrix": [0, 4], "x": 4, "y": 0},
+                {"matrix": [1, 0], "x": 0, "y": 1},
+                {"matrix": [1, 1], "x": 1, "y": 1},
+                {"matrix": [1, 2], "x": 2, "y": 1},
+                {"matrix": [1, 3], "x": 3, "y": 1},
+                {"matrix": [1, 4], "x": 4, "y": 1},
+                {"matrix": [2, 0], "x": 0, "y": 2},
+                {"matrix": [2, 1], "x": 1, "y": 2},
+                {"matrix": [2, 2], "x": 2, "y": 2},
+                {"matrix": [2, 3], "x": 3, "y": 2},
+                {"matrix": [2, 4], "x": 4, "y": 2},
+                {"matrix": [3, 0], "x": 0, "y": 3},
+                {"matrix": [3, 1], "x": 1, "y": 3},
+                {"matrix": [3, 2], "x": 2, "y": 3},
+                {"matrix": [3, 3], "x": 3, "y": 3},
+                {"matrix": [3, 4], "x": 4, "y": 3},
+                {"matrix": [4, 0], "x": 0, "y": 4},
+                {"matrix": [4, 1], "x": 1, "y": 4},
+                {"matrix": [4, 2], "x": 2, "y": 4},
+                {"matrix": [4, 3], "x": 3, "y": 4},
+                {"matrix": [4, 4], "x": 4, "y": 4},
+                {"matrix": [5, 0], "x": 0, "y": 5},
+            ]
+        }
+    }
+}

keyboards/lostdotfish/rp2040_orbweaver/keymaps/default/keymap.c

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+/* Copyright 2024 lostdotfish
+*
+* This program is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 2 of the License, or
+* (at your option) any later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include QMK_KEYBOARD_H
+
+
+enum orbweaver_layers {
+  _DEFAULT,
+  _LETTERS,
+  _CONTROL
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+//generic default keymap with Razor defaults (+ 20 shifts layer)
+
+     [_DEFAULT] = LAYOUT(
+        KC_ESC, KC_1, KC_2, KC_3, KC_4,
+        KC_TAB, KC_Q, KC_W, KC_E, KC_R,
+        KC_CAPS, KC_A, KC_S, KC_D, KC_F,
+        KC_LSFT, KC_Z, KC_X, KC_C, TO(1),
+        KC_LALT, KC_UP, KC_DOWN, KC_RIGHT, KC_LEFT,
+        KC_SPACE
+    ),
+
+//Second example keymap with all modifier keys replaced with numbers or letters
+
+   [_LETTERS] = LAYOUT(
+        KC_0, KC_1, KC_2, KC_3, KC_4,
+        KC_I, KC_Q, KC_W, KC_E, KC_R,
+        KC_J, KC_A, KC_S, KC_D, KC_F,
+        KC_K, KC_Z, KC_X, KC_C, TO(2),
+        KC_L, KC_UP, KC_DOWN, KC_RIGHT, KC_LEFT,
+        KC_SPACE
+    ),
+
+//, RGB Contol Keymap
+   [_CONTROL] = LAYOUT(
+        RM_NEXT, RM_HUEU, RM_SATU, RM_VALU, RM_SPDU,
+        RM_PREV, RM_HUED, RM_SATD, RM_VALD, RM_SPDD,
+        RM_TOGG, KC_A, KC_S, KC_D, KC_F,
+        KC_K, KC_Z, KC_X, KC_C, TO(0),
+        KC_L, KC_UP, KC_DOWN, KC_RIGHT, KC_LEFT,
+        KC_SPACE
+    ) 
+
+};
+
+layer_state_t layer_state_set_user(layer_state_t state) {
+    gpio_write_pin_high(GP23);
+    gpio_write_pin_high(GP24);
+    gpio_write_pin_high(GP25);
+    switch (get_highest_layer(state)) {
+        case _DEFAULT:
+            gpio_write_pin_low(GP23);
+            break;
+        case _LETTERS:
+            gpio_write_pin_low(GP25);
+            break;
+        case _CONTROL:
+            gpio_write_pin_low(GP24);
+            break;
+    }
+    return state;
+}

keyboards/lostdotfish/rp2040_orbweaver/mcuconf.h

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+// Copyright 2023 zzeneg (@zzeneg)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include_next <mcuconf.h>
+
+#undef RP_I2C_USE_I2C0
+#define RP_I2C_USE_I2C0 TRUE

keyboards/lostdotfish/rp2040_orbweaver/readme.md

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+# rp2040_orbweaver
+QMK firmware for RP2040 based MCU replacement PCB for the Razer Orbweaver gaming keypad
+
+![RP2040 Orbweaver](https://i.imgur.com/GCPRUbs.png)
+
+
+This firmware is for the Razer Orbweaver Chroma keypad with a custom, plug and play, RP2040 MCU PCB. For installation instructions and board availability see [geekhack](https://geekhack.org/index.php?topic=124092.0).
+
+The firmware controls a 6x5 key matrix (4x5 keypad + 6 additional keys on the thumb pad and up to 4 additional keys added by user). It also controls a IS31FL3731 RGB Matrix controller (on the Chroma model) via I2C interface. This requires a single I2C Driver with 20 common anode RGB LEDs.
+
+Key 20 (bottom right) is used to switch layers.  
+
+The default key map provides 3 preset layers.  
+
+(layer 0) is a generic layer based on the original Razer defaults.  
+(layer 1) replaces modifier keys with letter keys.   
+(layer 2) replaces the 2 top rows with RGB control keys.  
+
+The three LEDs on the thumb pad indicate the active layer. 
+
+Blue = layer 0  
+Green = layer 1  
+Yellow = layer 3  
+
+All LEDs will be off when any other (user added) layout is activated
+
+A set of RGB animations are included in confg.h.  These are controlled by activating the Yellow layer and using keys 01 - 11 (11 toggles the lighting on and off - see /keymaps/default/keymap.c for more information)
+
+Many thanks to a_marmot. Without his original handwired project, this board would not have been possible. His original work can be found here. [geekhack](https://geekhack.org/index.php?topic=119396.0).
+
+* Keyboard Maintainer: [Lostdotfish](https://github.com/Lostdotfish)
+* Hardware Supported: RP2040 + IS31FL3731
+* Hardware Availability: [https://geekhack.org/index.php?topic=124092.0](https://geekhack.org/index.php?topic=124092.0)
+
+Make example for this keyboard (after setting up your build environment):
+
+    make lostdotfish/rp2040_orbweaver:default
+
+Flashing example for this keyboard:
+
+    make lostdotfish/rp2040_orbweaver: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 2 ways:
+
+* Press and hold the upper left hand key on the main keyboard while you plug in the USB.
+* Press and release the boot button on the top of the RP2040_Orbweaver v2.0 inside the modded unit. 

keyboards/lostdotfish/rp2040_orbweaver/rp2040_orbweaver.c

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+/* Copyright 2024 lostdotfish
+*
+* This program is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 2 of the License, or
+* (at your option) any later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "rgb_matrix.h"
+#include "quantum.h"
+
+void keyboard_pre_init_kb(void) {
+    // Initialize Reset pins
+
+    gpio_set_pin_output(GP23);
+    gpio_set_pin_output(GP24);
+    gpio_set_pin_output(GP25);
+
+    gpio_write_pin_high(GP23);
+    gpio_write_pin_high(GP24);
+    gpio_write_pin_high(GP25);
+
+    keyboard_pre_init_user();
+}
+
+
+
+const is31fl3731_led_t PROGMEM g_is31fl3731_leds[IS31FL3731_LED_COUNT] = {
+/* Refer to IS31 manual for these locations
+ *   driver
+ *   |  R location
+ *   |  |      G location
+ *   |  |      |      B location
+ *   |  |      |      | */
+    {0, C9_1,  C8_1,  C7_1}, //top left key.
+    {0, C9_2,  C8_2,  C7_2},	
+    {0, C9_3,  C8_3,  C7_3},
+    {0, C9_4,  C8_4,  C7_4},
+    {0, C9_5,  C8_5,  C7_5}, //top right key. 
+    {0, C9_6,  C8_6,  C7_6},
+    {0, C9_7,  C8_7,  C6_6},      
+    {0, C9_8,  C7_7,  C6_7},
+    {0, C1_8,  C2_8,  C3_8},  
+    {0, C1_7,  C2_7,  C3_7},
+    {0, C1_6,  C2_6,  C3_6},
+    {0, C1_5,  C2_5,  C3_5},  
+    {0, C1_4,  C2_4,  C3_4},  
+    {0, C1_3,  C2_3,  C3_3},  
+    {0, C1_2,  C2_2,  C4_3},
+    {0, C1_1,  C3_2,  C4_2}, //lower left key
+    {0, C9_9,  C8_9,  C7_9},  
+    {0, C9_10,  C8_10,  C7_10},
+    {0, C9_11,  C8_11,  C7_11},
+    {0, C9_12,  C8_12,  C7_12} //lower right key
+
+};