Kuba's fake calculator

My cool hackpad kubas fake calculator/Firmware/main.py

@@ -0,0 +1,81 @@
+import board
+import time
+from kmk.kmk_keyboard import KMKKeyboard
+from kmk.scanners.keypad import MatrixScanner
+from kmk.keys import KC
+from kmk.modules.rotary_encoder import RotaryEncoderHandler
+from kmk.extensions.peg_rgb_matrix import Rgb_matrix
+
+keyboard = KMKKeyboard()
+
+rgb = Rgb_matrix()
+keyboard.extensions.append(rgb)
+
+
+keyboard.matrix = MatrixScanner(
+    column_pins=[board.GP3, board.GP4, board.GP2, board.GP1], 
+    row_pins=[board.GP27, board.GP28, board.G29],  
+    value_when_pressed=False,
+    )
+
+keyboard.keymap = [
+   #layer0
+   [
+        [KC.F13, KC.F14, KC.F15, KC.F16,],
+        [KC.F17, KC.F18, KC.F19, KC.F20,],
+        [KC.F21, KC.F22, KC.F23, KC.F24,],
+    ],
+    #layer1
+    [
+        [KC.F25, KC.F26, KC.F27, KC.F28,],
+        [KC.F29, KC.F30, KC.F31, KC.F32,],
+        [KC.F33, KC.F34, KC.F35, KC.F36,],
+    ],
+    #layer2
+    [
+        [KC.F37, KC.F38, KC.F39, KC.F40,],
+        [KC.F41, KC.F42, KC.F43, KC.F44,],
+        [KC.F45, KC.F46, KC.F47, KC.F48,],
+    ],
+]
+
+
+
+
+def switch_layer(layer):
+    keyboard.active_layers = [layer]
+    if layer == 0:
+        keyboard.set_pixel(0, 255, 0, 0)
+        keyboard.set_pixel(1, 255, 1, 1)
+        keyboard.set_pixel(2, 255, 2, 2)
+        keyboard.set_pixel(3, 255, 3, 3)
+    elif layer == 1:
+        keyboard.set_pixel(0, 0, 255, 0)
+        keyboard.set_pixel(1, 1, 255, 1)
+        keyboard.set_pixel(2, 2, 255, 2)
+        keyboard.set_pixel(3, 3, 255, 3)
+    elif layer == 2:
+        keyboard.set_pixel(0, 0, 0, 255)
+        keyboard.set_pixel(1, 1, 1, 255)
+        keyboard.set_pixel(2, 2, 2, 255)
+        keyboard.set_pixel(3, 3, 3, 255)
+    rgb.write()
+
+current_layer = 0
+switch_layer(current_layer)
+
+encoder = RotaryEncoderHandler(pin_a=board.GP7, pin_b=board.GP6,pin_S1=board.GP1)
+encoder.rotation_cw = KC.VOLU  
+encoder.rotation_ccw = KC.VOLD  
+keyboard.modules.append(encoder)
+
+while True:
+    keyboard.update()
+    if keyboard.matrix.is_pressed(0, 0):
+        current_layer = (current_layer + 1) % 3
+        switch_layer(current_layer)
+        time.sleep(0.3)
+
+
+if __name__ == '__main__':
+    keyboard.go()