App sync code, handles button presses from mixer and syncs changes from VM. Included python code from the mixer. Some other PCB changes, but still needs improvements

ControlMixerPython/code.py

@@ -0,0 +1,63 @@
+import usb_mixer
+import board
+import adafruit_dotstar
+import analogio
+import time
+import math
+import ulab.numpy
+import supervisor
+import key_interface
+import storage
+
+ANALOG_SAMPLE_SIZE=150
+
+pixel = adafruit_dotstar.DotStar(board.DOTSTAR_CLOCK, board.DOTSTAR_DATA, 1)
+slider_in = [
+    analogio.AnalogIn(board.A0),
+    analogio.AnalogIn(board.A1),
+    analogio.AnalogIn(board.A2),
+    analogio.AnalogIn(board.A3),
+    analogio.AnalogIn(board.A4)
+]
+
+i2c = board.I2C()
+keys = key_interface.KeyInterface(i2c)
+
+slider_vals = [0,0,0,0,0]
+buttons = [0,0,0,0,0]
+
+def readSlider(num):
+    vals = []
+    for i in range(0, ANALOG_SAMPLE_SIZE):
+        vals.append((slider_in[num].value / 0xFFFF) * 0xFFF) # Scale analogio back to ADC resolution
+    val_median = ulab.numpy.mean(ulab.numpy.ndarray(vals))
+    return math.floor((val_median / 0xFFF) * usb_mixer.RESOLUTION)
+
+try:
+    pixel.fill((0,0,32))
+    while not supervisor.runtime.usb_connected:
+        time.sleep(0.5)
+
+    mixer = usb_mixer.UsbMixer()
+    pixel.fill((0,32,0))
+    while True:
+        new_values = [
+            readSlider(0),
+            readSlider(1),
+            readSlider(2),
+            readSlider(3),
+            readSlider(4)
+        ]
+        new_buttons = keys.scan()
+        if new_values != slider_vals or new_buttons != buttons:
+            mixer.send_values(new_values[0], new_values[1], new_values[2], new_values[3], new_values[4], new_buttons)
+            pixel.fill((32,32,32))
+            slider_vals = new_values
+            buttons = new_buttons
+            pixel.fill((0,32,0))
+        time.sleep(0.001)
+except Exception as ex:
+    pixel.fill((255,0,0))
+    with open("/runtime_ex.txt", "w") as fp:
+        fp.write(ex)
+    print(ex)