hardware: Rotated MCU by 90 degrees, added a GPIO connector.

hackamp/hardware/bluetooth.kicad_sch

   (junction (at 214.63 26.67) (diameter 0.9144) (color 0 0 0 0))
   (junction (at 236.22 153.67) (diameter 0.9144) (color 0 0 0 0))
 
-  (no_connect (at 257.81 62.23))
-  (no_connect (at 257.81 59.69))
-  (no_connect (at 257.81 67.31))
-  (no_connect (at 257.81 74.93))
-  (no_connect (at 109.22 157.48))
   (no_connect (at 217.17 29.21))
-  (no_connect (at 109.22 160.02))
-  (no_connect (at 217.17 87.63))
-  (no_connect (at 257.81 85.09))
+  (no_connect (at 257.81 69.85))
+  (no_connect (at 217.17 24.13))
   (no_connect (at 257.81 77.47))
+  (no_connect (at 257.81 87.63))
   (no_connect (at 246.38 146.05))
-  (no_connect (at 257.81 46.99))
-  (no_connect (at 217.17 24.13))
-  (no_connect (at 257.81 69.85))
   (no_connect (at 246.38 135.89))
+  (no_connect (at 257.81 46.99))
+  (no_connect (at 217.17 87.63))
+  (no_connect (at 257.81 62.23))
+  (no_connect (at 257.81 67.31))
+  (no_connect (at 109.22 160.02))
+  (no_connect (at 109.22 157.48))
+  (no_connect (at 257.81 74.93))
+  (no_connect (at 257.81 59.69))
+  (no_connect (at 257.81 85.09))
   (no_connect (at 257.81 80.01))
-  (no_connect (at 257.81 87.63))
 
   (wire (pts (xy 24.13 72.39) (xy 24.13 80.01))
     (stroke (width 0) (type solid) (color 0 0 0 0))

hackamp/hardware/front.kicad_sch

   (junction (at 261.62 130.81) (diameter 0.9144) (color 0 0 0 0))
   (junction (at 266.7 77.47) (diameter 0.9144) (color 0 0 0 0))
 
-  (no_connect (at 234.95 128.27))
+  (no_connect (at 48.26 113.03))
   (no_connect (at 48.26 115.57))
+  (no_connect (at 234.95 128.27))
   (no_connect (at 60.96 115.57))
-  (no_connect (at 48.26 113.03))
 
   (wire (pts (xy 22.86 43.18) (xy 25.4 43.18))
     (stroke (width 0) (type solid) (color 0 0 0 0))

hackamp/hardware/hackamp.kicad_pro

   },
   "sheets": [
     [
-      "03175e32-2357-4040-a89c-2c863d4b5590",
+      "c990caaa-c62c-4eb5-8bee-586dc7fd1de2",
       ""
     ],
     [

hackamp/hardware/hackamp.kicad_sch

     (path "/00000000-0000-0000-0000-00005fa5bd7a/dfd4c611-8622-4a16-b7be-68071e4f9c72"
       (reference "#PWR0173") (unit 1) (value "GND") (footprint "")
     )
+    (path "/00000000-0000-0000-0000-00005fa5bd7a/15e726bc-9640-45b9-a31e-9aad8d8119f8"
+      (reference "#PWR0230") (unit 1) (value "GND") (footprint "")
+    )
+    (path "/00000000-0000-0000-0000-00005fa5bd7a/87a4e825-234f-49e6-89bd-02239306d4f0"
+      (reference "#PWR0231") (unit 1) (value "+5V") (footprint "")
+    )
+    (path "/00000000-0000-0000-0000-00005fa5bd7a/eff4465d-3b50-4db3-9cc6-d8b38a2fae06"
+      (reference "#PWR0232") (unit 1) (value "+3.3V") (footprint "")
+    )
     (path "/00000000-0000-0000-0000-00005fa5bd7a/d8c9ec50-62dd-4f5b-8e80-75cde5d7723b"
       (reference "C43") (unit 1) (value "10uF") (footprint "Capacitor_SMD:C_0805_2012Metric")
     )
     (path "/00000000-0000-0000-0000-00005fa5bd7a/0303621d-e0f0-49a0-9c06-55a5ae14db89"
       (reference "J10") (unit 1) (value "SWD") (footprint "Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical")
     )
+    (path "/00000000-0000-0000-0000-00005fa5bd7a/9538ca32-2a66-4b9b-83bc-07e377df3f12"
+      (reference "J12") (unit 1) (value "GPIO") (footprint "Connector_PinHeader_2.54mm:PinHeader_2x10_P2.54mm_Vertical")
+    )
     (path "/00000000-0000-0000-0000-00005fa5bd7a/00000000-0000-0000-0000-00005fa8a848"
       (reference "R1") (unit 1) (value "1.8k") (footprint "Resistor_SMD:R_0603_1608Metric")
     )

hackamp/hardware/headphone-amp.kicad_sch

   (junction (at 191.77 36.83) (diameter 0.9144) (color 0 0 0 0))
   (junction (at 201.93 111.76) (diameter 0.9144) (color 0 0 0 0))
 
-  (no_connect (at 162.56 93.98))
-  (no_connect (at 201.93 73.66))
-  (no_connect (at 127 109.22))
   (no_connect (at 127 104.14))
   (no_connect (at 162.56 96.52))
+  (no_connect (at 162.56 86.36))
+  (no_connect (at 127 109.22))
   (no_connect (at 217.17 116.84))
-  (no_connect (at 162.56 88.9))
   (no_connect (at 217.17 114.3))
-  (no_connect (at 162.56 86.36))
+  (no_connect (at 162.56 93.98))
+  (no_connect (at 162.56 88.9))
+  (no_connect (at 201.93 73.66))
 
   (wire (pts (xy 99.06 76.2) (xy 127 76.2))
     (stroke (width 0) (type solid) (color 0 0 0 0))