diff --git a/keyboards/mechwild/bb40/f401/info.json b/keyboards/mechwild/bb40/f401/info.json
new file mode 100644
index 0000000000..797e990059
--- /dev/null
+++ b/keyboards/mechwild/bb40/f401/info.json
@@ -0,0 +1,3 @@
+{
+    "development_board": "blackpill_f401"
+}
diff --git a/keyboards/mechwild/bb40/f401/rules.mk b/keyboards/mechwild/bb40/f401/rules.mk
new file mode 100644
index 0000000000..6e7633bfe0
--- /dev/null
+++ b/keyboards/mechwild/bb40/f401/rules.mk
@@ -0,0 +1 @@
+# This file intentionally left blank
diff --git a/keyboards/mechwild/bb40/f411/info.json b/keyboards/mechwild/bb40/f411/info.json
new file mode 100644
index 0000000000..a41c5f4dd1
--- /dev/null
+++ b/keyboards/mechwild/bb40/f411/info.json
@@ -0,0 +1,3 @@
+{
+    "development_board": "blackpill_f411"
+}
diff --git a/keyboards/mechwild/bb40/f411/rules.mk b/keyboards/mechwild/bb40/f411/rules.mk
new file mode 100644
index 0000000000..6e7633bfe0
--- /dev/null
+++ b/keyboards/mechwild/bb40/f411/rules.mk
@@ -0,0 +1 @@
+# This file intentionally left blank
diff --git a/keyboards/mechwild/bb40/info.json b/keyboards/mechwild/bb40/info.json
new file mode 100644
index 0000000000..15a16fbfed
--- /dev/null
+++ b/keyboards/mechwild/bb40/info.json
@@ -0,0 +1,133 @@
+{
+    "manufacturer": "MechWild",
+    "keyboard_name": "BB40",
+    "maintainer": "kylemccreery",
+    "bootloader_instructions": "Hold down the BOOT button, then tap the NRST button on the BlackPill. Avoid touching the A11 and A12 pins.",
+    "diode_direction": "COL2ROW",
+    "encoder": {
+        "rotary": [
+            {"pin_a": "B4", "pin_b": "B3"}
+        ]
+    },
+    "features": {
+        "bootmagic": true,
+        "encoder": true,
+        "extrakey": true,
+        "mousekey": true,
+        "nkro": true
+    },
+    "indicators": {
+        "caps_lock": "B8",
+        "num_lock": "B7",
+        "scroll_lock": "B9"
+    },
+    "matrix_pins": {
+        "cols": ["B10", "B1", "B0", "A7", "A6", "A5", "A4", "A3", "A2", "A1", "A0", "C15"],
+        "rows": ["B12", "B13", "B14", "B15"]
+    },
+    "url": "https://mechwild.com/product/bb40/",
+    "usb": {
+        "device_version": "1.0.0",
+        "pid": "0x1714",
+        "vid": "0x6D77"
+    },
+    "layout_aliases": {
+        "LAYOUT": "LAYOUT_all"
+    },
+    "layouts": {
+        "LAYOUT_6u": {
+            "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": [0, 5], "x": 5, "y": 0},
+                {"matrix": [0, 6], "x": 6, "y": 0},
+                {"matrix": [0, 7], "x": 7, "y": 0},
+                {"matrix": [0, 8], "x": 8, "y": 0},
+                {"matrix": [0, 9], "x": 9, "y": 0},
+                {"matrix": [0, 10], "x": 10, "y": 0},
+                {"matrix": [0, 11], "x": 11, "y": 0},
+                {"matrix": [1, 0], "x": 0, "y": 1, "w": 1.25},
+                {"matrix": [1, 1], "x": 1.25, "y": 1},
+                {"matrix": [1, 2], "x": 2.25, "y": 1},
+                {"matrix": [1, 3], "x": 3.25, "y": 1},
+                {"matrix": [1, 4], "x": 4.25, "y": 1},
+                {"matrix": [1, 5], "x": 5.25, "y": 1},
+                {"matrix": [1, 6], "x": 6.25, "y": 1},
+                {"matrix": [1, 7], "x": 7.25, "y": 1},
+                {"matrix": [1, 8], "x": 8.25, "y": 1},
+                {"matrix": [1, 9], "x": 9.25, "y": 1},
+                {"matrix": [1, 11], "x": 10.25, "y": 1, "w": 1.75},
+                {"matrix": [2, 0], "x": 0, "y": 2, "w": 1.75},
+                {"matrix": [2, 2], "x": 1.75, "y": 2},
+                {"matrix": [2, 3], "x": 2.75, "y": 2},
+                {"matrix": [2, 4], "x": 3.75, "y": 2},
+                {"matrix": [2, 5], "x": 4.75, "y": 2},
+                {"matrix": [2, 6], "x": 5.75, "y": 2},
+                {"matrix": [2, 7], "x": 6.75, "y": 2},
+                {"matrix": [2, 8], "x": 7.75, "y": 2},
+                {"matrix": [2, 9], "x": 8.75, "y": 2, "w": 1.25},
+                {"matrix": [2, 10], "x": 10, "y": 2},
+                {"matrix": [2, 11], "x": 11, "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, 6], "x": 3, "y": 3, "w": 6},
+                {"matrix": [3, 8], "x": 9, "y": 3},
+                {"matrix": [3, 9], "x": 10, "y": 3},
+                {"matrix": [3, 10], "x": 11, "y": 3},
+                {"matrix": [3, 11], "x": 12.5, "y": 3, "encoder": 0}
+            ]
+        },
+        "LAYOUT_all": {
+            "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": [0, 5], "x": 5, "y": 0},
+                {"matrix": [0, 6], "x": 6, "y": 0},
+                {"matrix": [0, 7], "x": 7, "y": 0},
+                {"matrix": [0, 8], "x": 8, "y": 0},
+                {"matrix": [0, 9], "x": 9, "y": 0},
+                {"matrix": [0, 10], "x": 10, "y": 0},
+                {"matrix": [0, 11], "x": 11, "y": 0},
+                {"matrix": [1, 0], "x": 0, "y": 1, "w": 1.25},
+                {"matrix": [1, 1], "x": 1.25, "y": 1},
+                {"matrix": [1, 2], "x": 2.25, "y": 1},
+                {"matrix": [1, 3], "x": 3.25, "y": 1},
+                {"matrix": [1, 4], "x": 4.25, "y": 1},
+                {"matrix": [1, 5], "x": 5.25, "y": 1},
+                {"matrix": [1, 6], "x": 6.25, "y": 1},
+                {"matrix": [1, 7], "x": 7.25, "y": 1},
+                {"matrix": [1, 8], "x": 8.25, "y": 1},
+                {"matrix": [1, 9], "x": 9.25, "y": 1},
+                {"matrix": [1, 11], "x": 10.25, "y": 1, "w": 1.75},
+                {"matrix": [2, 0], "x": 0, "y": 2, "w": 1.75},
+                {"matrix": [2, 2], "x": 1.75, "y": 2},
+                {"matrix": [2, 3], "x": 2.75, "y": 2},
+                {"matrix": [2, 4], "x": 3.75, "y": 2},
+                {"matrix": [2, 5], "x": 4.75, "y": 2},
+                {"matrix": [2, 6], "x": 5.75, "y": 2},
+                {"matrix": [2, 7], "x": 6.75, "y": 2},
+                {"matrix": [2, 8], "x": 7.75, "y": 2},
+                {"matrix": [2, 9], "x": 8.75, "y": 2, "w": 1.25},
+                {"matrix": [2, 10], "x": 10, "y": 2},
+                {"matrix": [2, 11], "x": 11, "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, 4], "x": 3, "y": 3, "w": 2.25},
+                {"matrix": [3, 6], "x": 5.25, "y": 3},
+                {"matrix": [3, 7], "x": 6.25, "y": 3, "w": 2.75},
+                {"matrix": [3, 8], "x": 9, "y": 3},
+                {"matrix": [3, 9], "x": 10, "y": 3},
+                {"matrix": [3, 10], "x": 11, "y": 3},
+                {"matrix": [3, 11], "x": 12.5, "y": 3, "encoder": 0}
+            ]
+        }
+    }
+}
diff --git a/keyboards/mechwild/bb40/keymaps/default/keymap.json b/keyboards/mechwild/bb40/keymaps/default/keymap.json
new file mode 100644
index 0000000000..104e42483c
--- /dev/null
+++ b/keyboards/mechwild/bb40/keymaps/default/keymap.json
@@ -0,0 +1,42 @@
+{
+   "keyboard": "mechwild/bb40",
+   "keymap": "default",
+   "version": 1,
+   "layout": "LAYOUT_all",
+   "layers": [
+      [
+         "KC_ESC",             "KC_Q",    "KC_W",    "KC_E",    "KC_R",    "KC_T",    "KC_Y",    "KC_U",    "KC_I",    "KC_O",            "KC_P",    "KC_BSPC",
+         "MO(1)",              "KC_A",    "KC_S",    "KC_D",    "KC_F",    "KC_G",    "KC_H",    "KC_J",    "KC_K",    "KC_L",                       "KC_ENT",
+         "KC_LSFT",            "KC_Z",    "KC_X",    "KC_C",    "KC_V",    "KC_B",    "KC_N",    "KC_M",               "RSFT_T(KC_COMM)", "KC_UP",   "LT(2,KC_DOT)",
+         "KC_LCTL", "KC_LGUI", "KC_LALT",            "KC_SPC",             "LT(1,KC_SPC)",       "KC_SPC",             "KC_LEFT",         "KC_DOWN", "KC_RIGHT", "KC_MUTE"
+      ],
+      [
+         "KC_TRNS",            "KC_1",    "KC_2",    "KC_3",    "KC_4",    "KC_5",    "KC_6",    "KC_7",    "KC_8",    "KC_9",    "KC_0",    "KC_TRNS",
+         "KC_TRNS",            "KC_GRV",  "KC_LBRC", "KC_RBRC", "KC_MINS", "KC_TRNS", "KC_TRNS", "KC_EQL",  "KC_BSLS", "KC_SCLN",            "KC_QUOT",
+         "KC_TRNS",            "KC_TRNS", "KC_TRNS", "KC_TRNS", "KC_TRNS", "KC_TRNS", "KC_TRNS", "KC_TRNS",            "KC_TRNS", "KC_TRNS", "KC_SLSH",
+         "KC_TRNS", "KC_TRNS", "KC_TRNS",            "KC_TRNS",            "KC_TRNS",            "KC_TRNS",            "KC_TRNS", "KC_TRNS", "KC_TRNS", "KC_TRNS"
+      ],
+      [
+         "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_CAPS",            "KC_TRNS", "KC_TRNS", "KC_TRNS", "KC_TRNS", "KC_TRNS", "KC_TRNS", "KC_TRNS", "KC_TRNS", "KC_TRNS",            "KC_TRNS",
+         "KC_TRNS",            "KC_TRNS", "KC_TRNS", "KC_TRNS", "KC_TRNS", "KC_TRNS", "KC_TRNS", "KC_TRNS",            "KC_TRNS", "KC_TRNS", "KC_TRNS",
+         "KC_TRNS", "KC_TRNS", "KC_TRNS",            "KC_TRNS",            "KC_TRNS",            "KC_TRNS",            "KC_TRNS", "KC_TRNS", "KC_TRNS", "KC_TRNS"
+      ]
+   ],
+   "config": {
+      "features": {
+         "encoder_map": true
+      }
+   },
+   "encoders": [
+      [
+         {"ccw": "KC_VOLD", "cw": "KC_VOLU"}
+      ],
+      [
+         {"ccw": "KC_TRNS", "cw": "KC_TRNS"}
+      ],
+      [
+         {"ccw": "KC_TRNS", "cw": "KC_TRNS"}
+      ]
+   ]
+}
diff --git a/keyboards/mechwild/bb40/readme.md b/keyboards/mechwild/bb40/readme.md
new file mode 100644
index 0000000000..aac52b072b
--- /dev/null
+++ b/keyboards/mechwild/bb40/readme.md
@@ -0,0 +1,23 @@
+# BB40
+
+![BB40](https://i.imgur.com/iikCpBuh.png)
+
+A completely normal BlackPill-powered 40% DIY kit.
+
+The `f401` version is the standard for this kit, using an STM32F401 BlackPill. The `f411` version will not run on an STM32F401 BlackPill; if in doubt, use `f401`.
+
+* Keyboard Maintainer: [Kyle McCreery](https://github.com/kylemccreery)
+* Hardware Supported: BB40 v1.0
+* Hardware Availability: [BB40 on MechWild](https://mechwild.com/product/bb40/)
+
+Make example for this keyboard (after setting up your build environment):
+
+    make mechwild/bb40/f401:default
+    make mechwild/bb40/f411:default
+
+Flashing example for this keyboard:
+
+    make mechwild/bb40/f401:default:flash
+    make mechwild/bb40/f411: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).