1 files changed, 46 insertions, 0 deletions
diff --git a/layout.py b/layout.py
new file mode 100644
index 0000000..3dfb828
--- /dev/null
+++ b/layout.py
@@ -0,0 +1,46 @@
+# Describe the layout used in the keyboard
+#
+import board
+from digitalio import Pull
+
+from kmk.scanners import DiodeOrientation
+col_pins = (board.GP26,board.GP27,board.GP28,board.GP29)
+row_pins = (board.GP22,board.GP20,board.GP23,board.GP21)
+
+
+diode_orientation = DiodeOrientation.ROW2COL
+
+from digitalio import DigitalInOut, Direction, Pull
+
+def check_key():
+    """ Check if a key is pressed and return True if so.
+        Scan all the keys only once, and return False if nothing where pressed.
+        """
+    if DiodeOrientation == DiodeOrientation.ROW2COL:
+        inputs = row_pins
+        outputs = col_pins
+    else:
+        inputs = col_pins
+        outputs = row_pins
+
+    for in_pin in inputs:
+        with DigitalInOut(in_pin) as in_io:
+            in_io.direction = Direction.INPUT
+            in_io.pull = Pull.DOWN
+
+            for out_pin in outputs:
+                with DigitalInOut(out_pin) as out_io:
+                    out_io.direction = Direction.OUTPUT
+                    out_io.value = True
+                    result = in_io.value
+
+                    if result:
+                        return result
+    return False
+
+def set_keyboard(keyboard):
+    """ Initialize the kmk keyboard with the values defined here.
+    """
+    keyboard.row_pins = row_pins
+    keyboard.col_pins = col_pins
+    keyboard.diode_orientation = diode_orientation