1 files changed, 47 insertions, 0 deletions
diff --git a/midi.py b/midi.py
new file mode 100644
index 0000000..81b6703
--- /dev/null
+++ b/midi.py
@@ -0,0 +1,47 @@
+import mido
+
+lp_key = [[j for j in range(i * 16, i * 16 + 8)] for i in range(0,8)]
+
+GREEN  = 124
+YELLOW = 126
+RED    = 3
+
+_light_ctrl_msg = mido.Message('note_on', channel=0)
+_inport = None
+_outport = None
+
+_callbacks_on_press = dict()
+_callbacks_on_release = dict()
+
+def midi_init(device_name="Launchpad Mini MIDI 1"):
+    global _inport, _outport
+    _inport = mido.open_input(device_name)
+    _outport = mido.open_output(device_name)
+
+    _inport.callback = _callback
+
+def button_on(button, colour):
+    print(f"outport: {_outport}")
+    if _outport:
+        msg = _light_ctrl_msg.copy(note=button, velocity=colour)
+        print(f"sending {msg}")
+        _outport.send(msg)
+
+def button_off(button):
+    if _outport:
+        msg = _light_ctrl_msg.copy(note=button, velocity=0)
+        _outport.send(msg)
+
+def on_press(button, function):
+    _callbacks_on_press[button] = function
+
+def on_release(button, function):
+    _callbacks_on_release[button] = function
+
+def _callback(msg):
+    if msg.velocity == 0:
+        if msg.note in _callbacks_on_release:
+            _callbacks_on_release[msg.note]()
+    elif msg.velocity == 127:
+        if msg.note in _callbacks_on_press:
+            _callbacks_on_press[msg.note]()