From 1d10babecfbd3c3609b6ee89d8fcb34486d331a0 Mon Sep 17 00:00:00 2001
From: Noe Ruiz <noe@adafruit.com>
Date: Fri, 1 Apr 2022 10:14:40 -0400
Subject: [PATCH] adding code for midi foot pedal

code for midi foot pedal
---
 MIDI_Foot_Pedal/code.py | 47 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100755 MIDI_Foot_Pedal/code.py

diff --git a/MIDI_Foot_Pedal/code.py b/MIDI_Foot_Pedal/code.py
new file mode 100755
index 000000000..54c39ece9
--- /dev/null
+++ b/MIDI_Foot_Pedal/code.py
@@ -0,0 +1,47 @@
+# SPDX-FileCopyrightText: 2022 Liz Clark for Adafruit Industries
+# SPDX-License-Identifier: MIT
+
+import board
+import usb_midi
+import adafruit_midi
+import simpleio
+from analogio import AnalogIn
+from adafruit_midi.control_change import ControlChange
+from adafruit_midi.pitch_bend import PitchBend
+
+#  midi setup
+midi = adafruit_midi.MIDI(
+    midi_in=usb_midi.ports[0], in_channel=0, midi_out=usb_midi.ports[1], out_channel=0
+)
+
+#  potentiometer setup
+mod_pot = AnalogIn(board.A0)
+
+#  function to read analog input
+def val(pin):
+    return pin.value
+
+#  variables for last read value
+#  defaults to 0
+#  no pitchbend is 8192
+mod_val2 = 0
+
+while True:
+
+    #  uncomment below to print potentiometer values in the REPL
+    #  print("{}".format(mod_pot.value))
+
+    #  map range of potentiometer input to midi values
+    mod_val1 = round(simpleio.map_range(val(mod_pot), 41200, 58500, 0, 127))
+
+    #  if modulation value is updated...
+    if abs(mod_val1 - mod_val2) > 2:
+        #  update mod_val2
+        mod_val2 = mod_val1
+        #  create integer
+        modulation = int(mod_val2)
+        #  create CC message
+        modWheel = ControlChange(1, modulation)
+        #  send CC message
+        midi.send(modWheel)
+