diff --git a/04_pcb/milkFrother/battery_management.kicad_sch b/04_pcb/milkFrother/battery_management.kicad_sch
index 7aee1f9..712f250 100644
--- a/04_pcb/milkFrother/battery_management.kicad_sch
+++ b/04_pcb/milkFrother/battery_management.kicad_sch
@@ -1,6 +1,6 @@
 (kicad_sch (version 20211123) (generator eeschema)
 
-  (uuid c9d85bfe-abdc-4b81-8120-a1b7413fdb89)
+  (uuid 492b66db-522b-42cb-93b8-2cb6bcc0691d)
 
   (paper "A4")
 
@@ -126,6 +126,51 @@
   )
 
 
+  (wire (pts (xy 139.065 84.455) (xy 143.51 84.455))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid 2e2bd433-5f4a-4d24-acd4-326997caddca)
+  )
+  (wire (pts (xy 139.065 76.835) (xy 143.51 76.835))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid 4b7bfa5e-6333-46f8-ac4f-d7d1fb57067e)
+  )
+  (wire (pts (xy 139.065 81.915) (xy 143.51 81.915))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid b0838eec-29f5-4c92-aa95-21dd68cc6cf9)
+  )
+  (wire (pts (xy 139.065 79.375) (xy 143.51 79.375))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid c0d0ca0c-079b-456e-a8d9-5576760c101d)
+  )
+
+  (hierarchical_label "DN" (shape bidirectional) (at 139.065 79.375 180)
+    (effects (font (size 1.27 1.27)) (justify right))
+    (uuid 048a024b-45cc-4252-a264-71a04332d761)
+  )
+  (hierarchical_label "DP" (shape bidirectional) (at 139.065 76.835 180)
+    (effects (font (size 1.27 1.27)) (justify right))
+    (uuid 0c0d3844-b3d0-45ae-8f72-42191d1d10b2)
+  )
+  (hierarchical_label "VCELL-" (shape bidirectional) (at 208.915 89.535 0)
+    (effects (font (size 1.27 1.27)) (justify left))
+    (uuid 6c5b0dfe-07c5-4d47-ace9-d900501a6a98)
+  )
+  (hierarchical_label "VCELL+" (shape bidirectional) (at 208.915 86.995 0)
+    (effects (font (size 1.27 1.27)) (justify left))
+    (uuid b9cefbcc-c2a5-4792-a4dc-52efc112bbc2)
+  )
+  (hierarchical_label "CC2" (shape bidirectional) (at 139.065 81.915 180)
+    (effects (font (size 1.27 1.27)) (justify right))
+    (uuid d6673908-ad2f-498f-bc7f-07f94c36cab4)
+  )
+  (hierarchical_label "VOLTAGE_STATUS" (shape output) (at 209.55 84.455 0)
+    (effects (font (size 1.27 1.27)) (justify left))
+    (uuid db246a24-d238-45c4-9b06-86c720061256)
+  )
+  (hierarchical_label "CC1" (shape bidirectional) (at 139.065 84.455 180)
+    (effects (font (size 1.27 1.27)) (justify right))
+    (uuid dda20e5f-dbb6-449a-ba7a-260201330a9a)
+  )
   (hierarchical_label "CHARGE_STATUS" (shape output) (at 209.55 81.915 0)
     (effects (font (size 1.27 1.27)) (justify left))
     (uuid ead884b1-9cbb-49f8-a5ee-f1844d300940)
diff --git a/04_pcb/milkFrother/mcu.kicad_sch b/04_pcb/milkFrother/mcu.kicad_sch
index 72fdb58..6783c27 100644
--- a/04_pcb/milkFrother/mcu.kicad_sch
+++ b/04_pcb/milkFrother/mcu.kicad_sch
@@ -1,6 +1,6 @@
 (kicad_sch (version 20211123) (generator eeschema)
 
-  (uuid 3def9ee9-b353-4649-baef-5208c3c24c54)
+  (uuid 698bf314-38e2-4224-8326-ab80f1da58b9)
 
   (paper "A4")
 
diff --git a/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_112422.zip b/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_112422.zip
deleted file mode 100644
index a8e5934..0000000
Binary files a/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_112422.zip and /dev/null differ
diff --git a/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_113303.zip b/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_113303.zip
deleted file mode 100644
index 324fbcd..0000000
Binary files a/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_113303.zip and /dev/null differ
diff --git a/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_134415.zip b/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_134415.zip
deleted file mode 100644
index c76a90c..0000000
Binary files a/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_134415.zip and /dev/null differ
diff --git a/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_144544.zip b/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_144544.zip
deleted file mode 100644
index aff7e39..0000000
Binary files a/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_144544.zip and /dev/null differ
diff --git a/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_161950.zip b/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_161950.zip
new file mode 100644
index 0000000..600fa95
Binary files /dev/null and b/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_161950.zip differ
diff --git a/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_163013.zip b/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_163013.zip
new file mode 100644
index 0000000..6eb035c
Binary files /dev/null and b/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_163013.zip differ
diff --git a/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_164340.zip b/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_164340.zip
new file mode 100644
index 0000000..790b206
Binary files /dev/null and b/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_164340.zip differ
diff --git a/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_164946.zip b/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_164946.zip
new file mode 100644
index 0000000..54e6253
Binary files /dev/null and b/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_164946.zip differ
diff --git a/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_170121.zip b/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_170121.zip
new file mode 100644
index 0000000..13a069d
Binary files /dev/null and b/04_pcb/milkFrother/milkFrother-backups/milkFrother-2022-01-16_170121.zip differ
diff --git a/04_pcb/milkFrother/milkFrother.kicad_sch b/04_pcb/milkFrother/milkFrother.kicad_sch
index 963ad72..0fd3e2c 100644
--- a/04_pcb/milkFrother/milkFrother.kicad_sch
+++ b/04_pcb/milkFrother/milkFrother.kicad_sch
@@ -117,6 +117,41 @@
         )
       )
     )
+    (symbol "Connector:TestPoint" (pin_numbers hide) (pin_names (offset 0.762) hide) (in_bom yes) (on_board yes)
+      (property "Reference" "TP" (id 0) (at 0 6.858 0)
+        (effects (font (size 1.27 1.27)))
+      )
+      (property "Value" "TestPoint" (id 1) (at 0 5.08 0)
+        (effects (font (size 1.27 1.27)))
+      )
+      (property "Footprint" "" (id 2) (at 5.08 0 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (property "Datasheet" "~" (id 3) (at 5.08 0 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (property "ki_keywords" "test point tp" (id 4) (at 0 0 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (property "ki_description" "test point" (id 5) (at 0 0 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (property "ki_fp_filters" "Pin* Test*" (id 6) (at 0 0 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (symbol "TestPoint_0_1"
+        (circle (center 0 3.302) (radius 0.762)
+          (stroke (width 0) (type default) (color 0 0 0 0))
+          (fill (type none))
+        )
+      )
+      (symbol "TestPoint_1_1"
+        (pin passive line (at 0 0 90) (length 2.54)
+          (name "1" (effects (font (size 1.27 1.27))))
+          (number "1" (effects (font (size 1.27 1.27))))
+        )
+      )
+    )
     (symbol "Device:C_Small" (pin_numbers hide) (pin_names (offset 0.254) hide) (in_bom yes) (on_board yes)
       (property "Reference" "C" (id 0) (at 0.254 1.778 0)
         (effects (font (size 1.27 1.27)) (justify left))
@@ -219,6 +254,62 @@
         )
       )
     )
+    (symbol "Device:NetTie_3" (pin_numbers hide) (pin_names (offset 0) hide) (in_bom yes) (on_board yes)
+      (property "Reference" "NT" (id 0) (at 0 1.27 0)
+        (effects (font (size 1.27 1.27)))
+      )
+      (property "Value" "NetTie_3" (id 1) (at 0 -3.81 0)
+        (effects (font (size 1.27 1.27)))
+      )
+      (property "Footprint" "" (id 2) (at 0 0 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (property "Datasheet" "~" (id 3) (at 0 0 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (property "ki_keywords" "net tie short" (id 4) (at 0 0 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (property "ki_description" "Net tie, 3 pins" (id 5) (at 0 0 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (property "ki_fp_filters" "Net*Tie*" (id 6) (at 0 0 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (symbol "NetTie_3_0_1"
+        (polyline
+          (pts
+            (xy -1.27 0)
+            (xy 1.27 0)
+          )
+          (stroke (width 0.508) (type default) (color 0 0 0 0))
+          (fill (type none))
+        )
+        (polyline
+          (pts
+            (xy 0 0)
+            (xy 0 -2.54)
+            (xy -1.27 -2.54)
+          )
+          (stroke (width 0.508) (type default) (color 0 0 0 0))
+          (fill (type none))
+        )
+      )
+      (symbol "NetTie_3_1_1"
+        (pin passive line (at -2.54 0 0) (length 2.54)
+          (name "1" (effects (font (size 1.27 1.27))))
+          (number "1" (effects (font (size 1.27 1.27))))
+        )
+        (pin passive line (at 2.54 0 180) (length 2.54)
+          (name "2" (effects (font (size 1.27 1.27))))
+          (number "2" (effects (font (size 1.27 1.27))))
+        )
+        (pin passive line (at -2.54 -2.54 0) (length 2.54)
+          (name "3" (effects (font (size 1.27 1.27))))
+          (number "3" (effects (font (size 1.27 1.27))))
+        )
+      )
+    )
     (symbol "power:GND" (power) (pin_names (offset 0)) (in_bom yes) (on_board yes)
       (property "Reference" "#PWR" (id 0) (at 0 -6.35 0)
         (effects (font (size 1.27 1.27)) hide)
@@ -465,20 +556,52 @@
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 58bf5e57-5941-494a-8966-ec604598fd42)
   )
-  (bus_entry (at 83.185 60.96) (size 2.54 2.54)
+  (bus_entry (at 83.185 58.42) (size 2.54 2.54)
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 6da25c61-810c-4f9b-b8c6-b750ff9f0514)
   )
-  (bus_entry (at 83.185 58.42) (size 2.54 2.54)
+  (bus_entry (at 83.185 60.96) (size 2.54 2.54)
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 6da25c61-810c-4f9b-b8c6-b750ff9f0514)
   )
+  (bus_entry (at 70.485 131.445) (size 2.54 2.54)
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid b34f8fe5-3ed3-4707-a2bd-e15b0bd140b2)
+  )
+  (bus_entry (at 70.485 133.985) (size 2.54 2.54)
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid b34f8fe5-3ed3-4707-a2bd-e15b0bd140b2)
+  )
+  (bus_entry (at 70.485 136.525) (size 2.54 2.54)
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid c5bcbecf-59cc-412e-a384-abca75e42a23)
+  )
+  (bus_entry (at 70.485 144.145) (size 2.54 2.54)
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid c5bcbecf-59cc-412e-a384-abca75e42a23)
+  )
+  (bus_entry (at 70.485 139.065) (size 2.54 2.54)
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid c5bcbecf-59cc-412e-a384-abca75e42a23)
+  )
+  (bus_entry (at 70.485 141.605) (size 2.54 2.54)
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid c5bcbecf-59cc-412e-a384-abca75e42a23)
+  )
 
+  (wire (pts (xy 49.53 156.21) (xy 95.885 156.21))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid 02baf0af-b800-41ee-97fe-4bb3b7415ee4)
+  )
   (bus (pts (xy 85.725 45.72) (xy 85.725 37.465))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 07471937-2950-4024-80f8-2632bd84f7b2)
   )
 
+  (wire (pts (xy 73.025 146.685) (xy 95.885 146.685))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid 0bc01d5d-578b-41e7-b742-b11b4531b8af)
+  )
   (wire (pts (xy 58.42 58.42) (xy 83.185 58.42))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 11fe1d86-620e-4bce-be75-c71728f097ea)
@@ -495,10 +618,27 @@
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 17b683c2-648b-4fbf-b845-9ff1266f106a)
   )
+  (bus (pts (xy 70.485 141.605) (xy 70.485 144.145))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid 17c46bec-add1-48ca-abc9-64ff33891380)
+  )
+
   (wire (pts (xy 50.8 27.305) (xy 50.8 29.21))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 192a322e-ecf7-463e-9f6e-d4a7172ecae2)
   )
+  (wire (pts (xy 49.53 146.685) (xy 49.53 156.21))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid 1fa44888-26fe-425d-8448-f0810178927d)
+  )
+  (wire (pts (xy 36.83 146.685) (xy 36.83 152.4))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid 216586c5-57c8-446f-bdf7-4b779da61274)
+  )
+  (wire (pts (xy 73.025 144.145) (xy 95.885 144.145))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid 27cb211a-8719-4b04-9324-a4b9c5f04687)
+  )
   (wire (pts (xy 48.26 74.93) (xy 50.8 74.93))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 2dccb3d5-9b9d-4d3d-be7e-00e42b57271a)
@@ -507,6 +647,10 @@
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 2eea6c0b-d8ad-476f-8416-4a43347c3306)
   )
+  (bus (pts (xy 70.485 133.985) (xy 70.485 136.525))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid 32febfab-8879-4328-87b9-631164a4efcf)
+  )
 
   (wire (pts (xy 67.31 33.655) (xy 67.31 34.925))
     (stroke (width 0) (type default) (color 0 0 0 0))
@@ -520,6 +664,10 @@
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 379eb477-a300-4d69-b5fd-71952d7b1681)
   )
+  (wire (pts (xy 36.83 152.4) (xy 95.885 152.4))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid 38833c0f-0edb-4eef-9c1d-c5fd34d93026)
+  )
   (wire (pts (xy 50.8 74.93) (xy 50.8 73.66))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 42caf78a-6888-4566-8e5f-0aa24c65cd7c)
@@ -559,6 +707,10 @@
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 57e202ed-07cb-4db1-b626-f73186524b5e)
   )
+  (wire (pts (xy 73.025 141.605) (xy 86.36 141.605))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid 5be99c8a-5fa3-47cc-84bc-25d5b3f311c8)
+  )
   (wire (pts (xy 60.96 27.305) (xy 67.31 27.305))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 5c11b4bc-db4d-44d7-8374-1fcb5743a56e)
@@ -567,7 +719,11 @@
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 5d383e33-1ee8-41c9-8aca-ada1613076e8)
   )
-  (bus (pts (xy 85.725 65.405) (xy 85.725 63.5))
+  (bus (pts (xy 70.485 131.445) (xy 70.485 133.985))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid 61416534-0430-4b20-965a-bb818160d8cb)
+  )
+  (bus (pts (xy 85.725 63.5) (xy 85.725 71.755))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 623c60b5-a6b1-47a4-a978-24eb90490cc8)
   )
@@ -581,6 +737,10 @@
     (uuid 66366dcf-a8dd-4d00-85ae-b1d1b8c36b01)
   )
 
+  (wire (pts (xy 91.44 139.065) (xy 95.885 139.065))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid 6e73aefc-8e2a-48cc-a71c-e6d8f73d993a)
+  )
   (wire (pts (xy 58.42 50.8) (xy 83.185 50.8))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 6eb4e5f0-1898-4a31-958e-2e5a03350318)
@@ -589,6 +749,10 @@
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 74b8748c-0100-49d0-8536-3532cf9da223)
   )
+  (wire (pts (xy 73.025 139.065) (xy 86.36 139.065))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid 752ad6e7-efeb-476f-bf43-063def5043d5)
+  )
   (wire (pts (xy 48.26 73.66) (xy 48.26 74.93))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 75e302c3-2351-4203-a06a-17714e536bed)
@@ -597,6 +761,10 @@
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 76dc7a04-54dd-4319-a56f-f19514bec539)
   )
+  (wire (pts (xy 72.39 24.13) (xy 72.39 27.305))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid 7a4789fb-512d-43b4-a5f2-52276f8bdb98)
+  )
   (wire (pts (xy 44.45 83.185) (xy 50.8 83.185))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 7abd09c3-6fb3-44cd-a08f-5444e7aeee1b)
@@ -647,14 +815,26 @@
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid 9fe2ed89-5470-4e8d-b75e-3cb79a4a73e1)
   )
+  (wire (pts (xy 73.025 136.525) (xy 80.645 136.525))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid a3e1da9a-4dcd-419a-8795-d03d1b10efb1)
+  )
   (wire (pts (xy 43.18 74.93) (xy 45.72 74.93))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid a44c31d6-376c-4137-9281-26bdb14285e9)
   )
+  (wire (pts (xy 54.61 80.645) (xy 54.61 83.185))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid a9217f93-09ea-43af-98e7-5a393efad549)
+  )
   (wire (pts (xy 45.72 27.305) (xy 48.26 27.305))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid ab63182e-5be4-4787-af89-c6a871ccbf53)
   )
+  (bus (pts (xy 70.485 136.525) (xy 70.485 139.065))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid b385dbfb-127d-4bb6-8a4b-6bf8c16794ac)
+  )
   (bus (pts (xy 85.725 55.88) (xy 85.725 53.34))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid b4215023-4d53-436d-950f-64f94c59e3c7)
@@ -664,14 +844,45 @@
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid b78b2865-d9d0-4260-ad39-8298c67f8c58)
   )
+  (bus (pts (xy 70.485 71.755) (xy 70.485 131.445))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid c3eca15f-23bc-47e3-a4af-4223ac19857a)
+  )
+
+  (wire (pts (xy 72.39 27.305) (xy 67.31 27.305))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid c40ef333-fa0d-4be5-ae43-c696dd7a259f)
+  )
+  (bus (pts (xy 70.485 71.755) (xy 85.725 71.755))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid c6f8eae3-5235-4c81-b1f2-746874c474ff)
+  )
+
+  (wire (pts (xy 85.725 133.985) (xy 95.885 133.985))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid c7817318-e68c-494e-a505-b594df7536f7)
+  )
+  (bus (pts (xy 70.485 139.065) (xy 70.485 141.605))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid c81158c2-0c65-4059-bee5-89524521693f)
+  )
+
   (wire (pts (xy 67.31 27.305) (xy 67.31 28.575))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid d4bb5e0c-1d6b-42df-9ebc-0a4ae7e05c37)
   )
+  (wire (pts (xy 50.8 83.185) (xy 54.61 83.185))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid d8c69f7b-fb07-42a0-991d-db55017fdf9f)
+  )
   (wire (pts (xy 30.48 83.185) (xy 36.83 83.185))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid dcc568a5-dad6-477b-969f-341b34919e1a)
   )
+  (wire (pts (xy 73.025 133.985) (xy 80.645 133.985))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid deb5cbce-6de6-46c2-8ae4-d5738d702bbb)
+  )
   (wire (pts (xy 58.42 53.34) (xy 83.185 53.34))
     (stroke (width 0) (type default) (color 0 0 0 0))
     (uuid e3b15e2a-2397-49e0-a701-b4fb8676bd55)
@@ -689,19 +900,31 @@
     (uuid f87bf2bd-9727-4ac7-9da0-c951f6ea3250)
   )
 
-  (text "TC78H630FNG\n" (at 250.825 97.155 0)
+  (text "TC78H630FNG\n" (at 240.03 109.22 0)
     (effects (font (size 1.27 1.27)) (justify left bottom))
     (uuid aab1494f-afe7-4efa-a0b8-74ad36a73f8a)
   )
+  (text "18650 LiPo cell comes here" (at 36.195 160.655 0)
+    (effects (font (size 1.27 1.27)) (justify left bottom))
+    (uuid bcc76935-c9e0-43fe-a7c0-3000e8296dc2)
+  )
 
   (label "DA+" (at 60.325 48.26 0)
     (effects (font (size 1.27 1.27)) (justify left bottom))
     (uuid 251b4dfb-1178-4342-a006-e4e572f225ac)
   )
+  (label "DB-" (at 74.295 141.605 0)
+    (effects (font (size 1.27 1.27)) (justify left bottom))
+    (uuid 2ecf9391-6e9d-42a3-b3ee-53e3986f0eb0)
+  )
   (label "SBU2" (at 60.325 60.96 0)
     (effects (font (size 1.27 1.27)) (justify left bottom))
     (uuid 4b1d49d7-5d31-4e0f-9501-d07b4b00496e)
   )
+  (label "DA+" (at 74.295 133.985 0)
+    (effects (font (size 1.27 1.27)) (justify left bottom))
+    (uuid 56be5298-0386-43b1-bad3-d4171a15e4c3)
+  )
   (label "CC2" (at 60.325 45.72 0)
     (effects (font (size 1.27 1.27)) (justify left bottom))
     (uuid 63fa25d4-66e2-4983-a985-fca3dce27ac7)
@@ -710,6 +933,10 @@
     (effects (font (size 1.27 1.27)) (justify left bottom))
     (uuid 76a6b148-4b39-4021-883b-7a8bb13843c1)
   )
+  (label "CC1" (at 74.295 144.145 0)
+    (effects (font (size 1.27 1.27)) (justify left bottom))
+    (uuid 88d9352e-5ed4-4d63-ade4-573eb412612b)
+  )
   (label "DA-" (at 60.325 50.8 0)
     (effects (font (size 1.27 1.27)) (justify left bottom))
     (uuid 9ac9aa7e-e8bc-4f9b-898f-6e29d7d2ad5d)
@@ -718,6 +945,10 @@
     (effects (font (size 1.27 1.27)) (justify left bottom))
     (uuid a954ab6b-5ca7-498f-adf7-c94090f8b866)
   )
+  (label "DA-" (at 74.295 139.065 0)
+    (effects (font (size 1.27 1.27)) (justify left bottom))
+    (uuid bf8f1a31-07c1-4b45-9d8e-c1cca2732c41)
+  )
   (label "DB-" (at 60.325 53.34 0)
     (effects (font (size 1.27 1.27)) (justify left bottom))
     (uuid c2252026-91fa-471e-abcf-e814e73cc247)
@@ -726,11 +957,53 @@
     (effects (font (size 1.27 1.27)) (justify left bottom))
     (uuid c5d5ca27-5c84-4cdd-8ce9-e48d6b23f88f)
   )
+  (label "DB+" (at 74.295 136.525 0)
+    (effects (font (size 1.27 1.27)) (justify left bottom))
+    (uuid ca8abc79-63bc-4fff-b58d-e708832ea265)
+  )
+  (label "CC2" (at 74.295 146.685 0)
+    (effects (font (size 1.27 1.27)) (justify left bottom))
+    (uuid d3d3ec94-1369-4f35-bf8e-bfb742a23274)
+  )
   (label "SBU1" (at 60.325 58.42 0)
     (effects (font (size 1.27 1.27)) (justify left bottom))
     (uuid f46502f0-effa-47ed-ba8b-d884cc22a5f0)
   )
 
+  (symbol (lib_id "Device:NetTie_3") (at 83.185 133.985 0) (unit 1)
+    (in_bom yes) (on_board yes) (fields_autoplaced)
+    (uuid 0144e1c3-e173-4dba-a68c-3ae211a8dd6a)
+    (property "Reference" "NT?" (id 0) (at 83.185 128.27 0))
+    (property "Value" "NetTie_3" (id 1) (at 83.185 130.81 0))
+    (property "Footprint" "" (id 2) (at 83.185 133.985 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Datasheet" "~" (id 3) (at 83.185 133.985 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (pin "1" (uuid 80cc642e-4d35-4c7b-abd4-f9e2e39f29c8))
+    (pin "2" (uuid d99f3dd6-c3a9-4e9c-9257-e898059bb9a4))
+    (pin "3" (uuid 3b0b946d-83dc-460c-809b-03562c761463))
+  )
+
+  (symbol (lib_id "Connector:TestPoint") (at 49.53 146.685 0) (unit 1)
+    (in_bom yes) (on_board yes) (fields_autoplaced)
+    (uuid 17fcc5b0-efa4-4e69-957a-83e64e70e83e)
+    (property "Reference" "TP?" (id 0) (at 51.435 142.1129 0)
+      (effects (font (size 1.27 1.27)) (justify left))
+    )
+    (property "Value" "TestPoint" (id 1) (at 51.435 144.6529 0)
+      (effects (font (size 1.27 1.27)) (justify left))
+    )
+    (property "Footprint" "" (id 2) (at 54.61 146.685 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Datasheet" "~" (id 3) (at 54.61 146.685 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (pin "1" (uuid 55db1fbf-e9f3-438a-86c0-8df1290c755d))
+  )
+
   (symbol (lib_id "power:GNDPWR") (at 30.48 86.995 0) (unit 1)
     (in_bom yes) (on_board yes)
     (uuid 18ecfec8-714d-4178-846f-12d69dfc3a79)
@@ -812,6 +1085,42 @@
     (pin "SH4" (uuid 3cd1c7ba-12f8-4dcb-9feb-f462fea940b4))
   )
 
+  (symbol (lib_id "Connector:TestPoint") (at 72.39 24.13 0) (unit 1)
+    (in_bom yes) (on_board yes) (fields_autoplaced)
+    (uuid 5f066dc2-4b13-4907-8787-5da9aa8cde9f)
+    (property "Reference" "TP?" (id 0) (at 74.295 19.5579 0)
+      (effects (font (size 1.27 1.27)) (justify left))
+    )
+    (property "Value" "TestPoint" (id 1) (at 74.295 22.0979 0)
+      (effects (font (size 1.27 1.27)) (justify left))
+    )
+    (property "Footprint" "" (id 2) (at 77.47 24.13 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Datasheet" "~" (id 3) (at 77.47 24.13 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (pin "1" (uuid a27dc757-32ed-4a80-a886-40ebccbc64e0))
+  )
+
+  (symbol (lib_id "Connector:TestPoint") (at 36.83 146.685 0) (unit 1)
+    (in_bom yes) (on_board yes) (fields_autoplaced)
+    (uuid 63a754b4-4cc4-43c6-b7bf-ab5cd66acd8f)
+    (property "Reference" "TP?" (id 0) (at 38.735 142.1129 0)
+      (effects (font (size 1.27 1.27)) (justify left))
+    )
+    (property "Value" "TestPoint" (id 1) (at 38.735 144.6529 0)
+      (effects (font (size 1.27 1.27)) (justify left))
+    )
+    (property "Footprint" "" (id 2) (at 41.91 146.685 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Datasheet" "~" (id 3) (at 41.91 146.685 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (pin "1" (uuid 50c4d630-f22e-418f-ba27-6d7458e6ab72))
+  )
+
   (symbol (lib_id "Device:L") (at 40.64 83.185 90) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 65a31605-73e6-4830-a229-2419c5e7e0a7)
@@ -827,6 +1136,24 @@
     (pin "2" (uuid c0354f2d-22f5-432c-b380-93a80d28acb5))
   )
 
+  (symbol (lib_id "Connector:TestPoint") (at 54.61 80.645 0) (unit 1)
+    (in_bom yes) (on_board yes) (fields_autoplaced)
+    (uuid 6716c2d2-aa26-4683-8c87-a6577115aac0)
+    (property "Reference" "TP?" (id 0) (at 56.515 76.0729 0)
+      (effects (font (size 1.27 1.27)) (justify left))
+    )
+    (property "Value" "TestPoint" (id 1) (at 56.515 78.6129 0)
+      (effects (font (size 1.27 1.27)) (justify left))
+    )
+    (property "Footprint" "" (id 2) (at 59.69 80.645 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Datasheet" "~" (id 3) (at 59.69 80.645 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (pin "1" (uuid 3d685fe6-cf0c-4854-8b26-3a559581a302))
+  )
+
   (symbol (lib_id "power:GND") (at 67.31 34.925 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 88340377-13a8-4a0e-aa80-b064bcb166d4)
@@ -859,6 +1186,22 @@
     (pin "1" (uuid b19af926-36d4-44a3-8235-41ecf72273c0))
   )
 
+  (symbol (lib_id "Device:NetTie_3") (at 88.9 139.065 0) (unit 1)
+    (in_bom yes) (on_board yes) (fields_autoplaced)
+    (uuid bd80d11c-f465-4dcb-ac7e-7f2ad69f7a51)
+    (property "Reference" "NT?" (id 0) (at 88.9 133.35 0))
+    (property "Value" "NetTie_3" (id 1) (at 88.9 135.89 0))
+    (property "Footprint" "" (id 2) (at 88.9 139.065 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Datasheet" "~" (id 3) (at 88.9 139.065 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (pin "1" (uuid 8f009c93-842e-47ee-aa42-7fd143907c7f))
+    (pin "2" (uuid 40832ca1-9fa0-49d0-a888-a0afdfd23d06))
+    (pin "3" (uuid dc8c7457-10d6-4496-b5c6-3ca076e736f6))
+  )
+
   (symbol (lib_id "Device:L") (at 57.15 27.305 90) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid d4503c1e-546e-450a-aceb-db69454aed34)
@@ -875,12 +1218,12 @@
   )
 
   (symbol (lib_id "Device:C_Small") (at 67.31 31.115 0) (unit 1)
-    (in_bom yes) (on_board yes) (fields_autoplaced)
+    (in_bom yes) (on_board yes)
     (uuid fc4e01d0-f76a-4b1c-9a5f-546bb4d47cfa)
     (property "Reference" "C?" (id 0) (at 69.85 29.8512 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
-    (property "Value" "C_Small" (id 1) (at 69.85 32.3912 0)
+    (property "Value" "100n" (id 1) (at 69.85 32.3912 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
     (property "Footprint" "" (id 2) (at 67.31 31.115 0)
@@ -889,54 +1232,111 @@
     (property "Datasheet" "~" (id 3) (at 67.31 31.115 0)
       (effects (font (size 1.27 1.27)) hide)
     )
+    (property "Tolerance" "10%" (id 4) (at 71.12 33.655 0)
+      (effects (font (size 0.635 0.635)))
+    )
+    (property "Type" "X7R" (id 5) (at 73.025 33.655 0)
+      (effects (font (size 0.635 0.635)))
+    )
+    (property "Voltage Rating" "35" (id 6) (at 74.93 33.655 0)
+      (effects (font (size 0.635 0.635)))
+    )
     (pin "1" (uuid 5e814ebb-5fd2-463e-9b98-ea391fdcd322))
     (pin "2" (uuid 5f94e269-b0e9-449f-b0c6-c82331dc770c))
   )
 
-  (sheet (at 215.265 41.275) (size 53.34 34.29) (fields_autoplaced)
+  (sheet (at 216.535 114.935) (size 53.34 34.29) (fields_autoplaced)
     (stroke (width 0.1524) (type solid) (color 0 0 0 0))
     (fill (color 0 0 0 0.0000))
     (uuid 2c0c0b35-eaf6-4f9e-a023-5d1b52338afb)
-    (property "Sheet name" "Motor Driver" (id 0) (at 215.265 40.5634 0)
+    (property "Sheet name" "Motor Driver" (id 0) (at 216.535 114.2234 0)
       (effects (font (size 1.27 1.27)) (justify left bottom))
     )
-    (property "Sheet file" "motor_driver.kicad_sch" (id 1) (at 215.265 76.1496 0)
+    (property "Sheet file" "motor_driver.kicad_sch" (id 1) (at 216.535 149.8096 0)
       (effects (font (size 1.27 1.27)) (justify left top))
     )
+    (pin "OUT_A" output (at 269.875 124.46 0)
+      (effects (font (size 1.27 1.27)) (justify right))
+      (uuid 00679a0c-376d-408f-aec0-1f136539b767)
+    )
+    (pin "OUT_B" output (at 269.875 137.16 0)
+      (effects (font (size 1.27 1.27)) (justify right))
+      (uuid 2bcef692-01db-4399-aac6-10d4a30c8752)
+    )
+    (pin "GND" input (at 252.095 149.225 270)
+      (effects (font (size 1.27 1.27)) (justify left))
+      (uuid c54d132d-f7b1-4b8a-b074-1da5626acd6d)
+    )
+    (pin "V_in" input (at 252.095 114.935 90)
+      (effects (font (size 1.27 1.27)) (justify right))
+      (uuid 7487c5a5-5134-43b4-b17b-5910521e8993)
+    )
   )
 
-  (sheet (at 114.935 90.805) (size 25.4 27.94) (fields_autoplaced)
+  (sheet (at 95.885 131.445) (size 25.4 27.94) (fields_autoplaced)
     (stroke (width 0.1524) (type solid) (color 0 0 0 0))
     (fill (color 0 0 0 0.0000))
     (uuid 874c218a-578e-4a62-a8c1-fe8414dd125f)
-    (property "Sheet name" "Battery Management" (id 0) (at 114.935 90.0934 0)
+    (property "Sheet name" "Battery Management" (id 0) (at 95.885 130.7334 0)
       (effects (font (size 1.27 1.27)) (justify left bottom))
     )
-    (property "Sheet file" "battery_management.kicad_sch" (id 1) (at 114.935 119.3296 0)
+    (property "Sheet file" "battery_management.kicad_sch" (id 1) (at 95.885 159.9696 0)
       (effects (font (size 1.27 1.27)) (justify left top))
     )
+    (pin "CHARGE_STATUS" output (at 121.285 134.62 0)
+      (effects (font (size 1.27 1.27)) (justify right))
+      (uuid 63d3108d-895f-4363-a3c3-aa8b11dc5c20)
+    )
+    (pin "DP" bidirectional (at 95.885 133.985 180)
+      (effects (font (size 1.27 1.27)) (justify left))
+      (uuid 5d5cfd5f-acfa-45e3-9f61-391abd5f280c)
+    )
+    (pin "DN" bidirectional (at 95.885 139.065 180)
+      (effects (font (size 1.27 1.27)) (justify left))
+      (uuid 87c838e9-9875-46f2-aa97-ba0aa1556784)
+    )
+    (pin "CC1" bidirectional (at 95.885 144.145 180)
+      (effects (font (size 1.27 1.27)) (justify left))
+      (uuid bfa857ad-b4a0-4a9a-9c49-020c52ebd4e4)
+    )
+    (pin "CC2" bidirectional (at 95.885 146.685 180)
+      (effects (font (size 1.27 1.27)) (justify left))
+      (uuid 4a990f79-850b-4b4f-8eb6-e7de135ed869)
+    )
+    (pin "VCELL-" bidirectional (at 95.885 156.21 180)
+      (effects (font (size 1.27 1.27)) (justify left))
+      (uuid 5be135cc-fe12-4b81-aa68-de77d4548d2b)
+    )
+    (pin "VCELL+" bidirectional (at 95.885 152.4 180)
+      (effects (font (size 1.27 1.27)) (justify left))
+      (uuid d27fbf89-29b1-4712-88b5-4c1d493a9410)
+    )
+    (pin "VOLTAGE_STATUS" output (at 121.285 137.16 0)
+      (effects (font (size 1.27 1.27)) (justify right))
+      (uuid 6cad45f3-a3f7-4a0d-81ab-4e59170104fc)
+    )
   )
 
-  (sheet (at 220.98 110.49) (size 31.75 33.02) (fields_autoplaced)
+  (sheet (at 139.7 41.275) (size 31.75 33.02) (fields_autoplaced)
     (stroke (width 0.1524) (type solid) (color 0 0 0 0))
     (fill (color 0 0 0 0.0000))
     (uuid 8e890467-c89f-4810-ab59-ad88ec90fe5c)
-    (property "Sheet name" "MCU" (id 0) (at 220.98 109.7784 0)
+    (property "Sheet name" "MCU" (id 0) (at 139.7 40.5634 0)
       (effects (font (size 1.27 1.27)) (justify left bottom))
     )
-    (property "Sheet file" "mcu.kicad_sch" (id 1) (at 220.98 144.0946 0)
+    (property "Sheet file" "mcu.kicad_sch" (id 1) (at 139.7 74.8796 0)
       (effects (font (size 1.27 1.27)) (justify left top))
     )
   )
 
-  (sheet (at 159.385 41.91) (size 48.26 38.1) (fields_autoplaced)
+  (sheet (at 219.71 40.005) (size 32.385 26.035) (fields_autoplaced)
     (stroke (width 0.1524) (type solid) (color 0 0 0 0))
     (fill (color 0 0 0 0.0000))
     (uuid e47999ae-4ad0-4f52-b93a-798690a80d13)
-    (property "Sheet name" "User Interface" (id 0) (at 159.385 41.1984 0)
+    (property "Sheet name" "User Interface" (id 0) (at 219.71 39.2934 0)
       (effects (font (size 1.27 1.27)) (justify left bottom))
     )
-    (property "Sheet file" "user_interface.kicad_sch" (id 1) (at 159.385 80.5946 0)
+    (property "Sheet file" "user_interface.kicad_sch" (id 1) (at 219.71 66.6246 0)
       (effects (font (size 1.27 1.27)) (justify left top))
     )
   )
@@ -956,6 +1356,9 @@
     (path "/3c9b835d-3ac8-4a23-ad89-409a978c1244"
       (reference "#PWR?") (unit 1) (value "VBUS") (footprint "")
     )
+    (path "/2c0c0b35-eaf6-4f9e-a023-5d1b52338afb/7e8d0945-a926-4fd0-a75d-01d612971808"
+      (reference "#PWR?") (unit 1) (value "GND") (footprint "")
+    )
     (path "/88340377-13a8-4a0e-aa80-b064bcb166d4"
       (reference "#PWR?") (unit 1) (value "GND") (footprint "")
     )
@@ -963,7 +1366,7 @@
       (reference "#PWR?") (unit 1) (value "GND") (footprint "")
     )
     (path "/fc4e01d0-f76a-4b1c-9a5f-546bb4d47cfa"
-      (reference "C?") (unit 1) (value "C_Small") (footprint "")
+      (reference "C?") (unit 1) (value "100n") (footprint "")
     )
     (path "/59046e68-ac16-4023-b73e-48a498cadee1"
       (reference "J?") (unit 1) (value "2130830005") (footprint "818_USB:MOLEX_2130830005")
@@ -974,6 +1377,24 @@
     (path "/d4503c1e-546e-450a-aceb-db69454aed34"
       (reference "L?") (unit 1) (value "100n") (footprint "Inductor_SMD:L_0603_1608Metric_Pad1.05x0.95mm_HandSolder")
     )
+    (path "/0144e1c3-e173-4dba-a68c-3ae211a8dd6a"
+      (reference "NT?") (unit 1) (value "NetTie_3") (footprint "")
+    )
+    (path "/bd80d11c-f465-4dcb-ac7e-7f2ad69f7a51"
+      (reference "NT?") (unit 1) (value "NetTie_3") (footprint "")
+    )
+    (path "/17fcc5b0-efa4-4e69-957a-83e64e70e83e"
+      (reference "TP?") (unit 1) (value "TestPoint") (footprint "")
+    )
+    (path "/5f066dc2-4b13-4907-8787-5da9aa8cde9f"
+      (reference "TP?") (unit 1) (value "TestPoint") (footprint "")
+    )
+    (path "/63a754b4-4cc4-43c6-b7bf-ab5cd66acd8f"
+      (reference "TP?") (unit 1) (value "TestPoint") (footprint "")
+    )
+    (path "/6716c2d2-aa26-4683-8c87-a6577115aac0"
+      (reference "TP?") (unit 1) (value "TestPoint") (footprint "")
+    )
     (path "/874c218a-578e-4a62-a8c1-fe8414dd125f/db1fa44a-90e3-4b8f-9204-056fdb3aa41c"
       (reference "U?") (unit 1) (value "MAX77757") (footprint "314_PMIC:FC2QFN-24_3x3mm_P0.4mm")
     )
diff --git a/04_pcb/milkFrother/motor_driver.kicad_sch b/04_pcb/milkFrother/motor_driver.kicad_sch
index b86b31c..de9ebb6 100644
--- a/04_pcb/milkFrother/motor_driver.kicad_sch
+++ b/04_pcb/milkFrother/motor_driver.kicad_sch
@@ -1,10 +1,100 @@
 (kicad_sch (version 20211123) (generator eeschema)
 
-  (uuid 89ec47dc-e663-4066-86f7-8a00bd6931a2)
+  (uuid 2432fc25-d4df-4237-987d-c341ad36c4c1)
 
   (paper "A4")
 
   (lib_symbols
+    (symbol "power:GND" (power) (pin_names (offset 0)) (in_bom yes) (on_board yes)
+      (property "Reference" "#PWR" (id 0) (at 0 -6.35 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (property "Value" "GND" (id 1) (at 0 -3.81 0)
+        (effects (font (size 1.27 1.27)))
+      )
+      (property "Footprint" "" (id 2) (at 0 0 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (property "Datasheet" "" (id 3) (at 0 0 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (property "ki_keywords" "power-flag" (id 4) (at 0 0 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (property "ki_description" "Power symbol creates a global label with name \"GND\" , ground" (id 5) (at 0 0 0)
+        (effects (font (size 1.27 1.27)) hide)
+      )
+      (symbol "GND_0_1"
+        (polyline
+          (pts
+            (xy 0 0)
+            (xy 0 -1.27)
+            (xy 1.27 -1.27)
+            (xy 0 -2.54)
+            (xy -1.27 -1.27)
+            (xy 0 -1.27)
+          )
+          (stroke (width 0) (type default) (color 0 0 0 0))
+          (fill (type none))
+        )
+      )
+      (symbol "GND_1_1"
+        (pin power_in line (at 0 0 270) (length 0) hide
+          (name "GND" (effects (font (size 1.27 1.27))))
+          (number "1" (effects (font (size 1.27 1.27))))
+        )
+      )
+    )
   )
 
+
+  (wire (pts (xy 64.135 84.455) (xy 64.135 88.265))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid 1e84ea81-515c-45e0-a898-188d95ad4042)
+  )
+  (wire (pts (xy 59.69 84.455) (xy 64.135 84.455))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid a4dc7821-9d8b-452d-b486-5866942a12c9)
+  )
+  (wire (pts (xy 64.135 74.295) (xy 59.69 74.295))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid c0f697a9-8366-44b8-9e73-0bc4f4e97245)
+  )
+  (wire (pts (xy 64.135 70.485) (xy 64.135 74.295))
+    (stroke (width 0) (type default) (color 0 0 0 0))
+    (uuid da2a759e-2e69-4366-bbc7-dad66bae597c)
+  )
+
+  (hierarchical_label "OUT_B" (shape output) (at 218.44 110.49 0)
+    (effects (font (size 1.27 1.27)) (justify left))
+    (uuid 00329ee2-5948-405c-bb81-5010d5662a92)
+  )
+  (hierarchical_label "V_in" (shape input) (at 59.69 74.295 180)
+    (effects (font (size 1.27 1.27)) (justify right))
+    (uuid 162cb1d1-a355-452b-9bf5-5f5c71188998)
+  )
+  (hierarchical_label "OUT_A" (shape output) (at 218.44 104.775 0)
+    (effects (font (size 1.27 1.27)) (justify left))
+    (uuid 22179aa5-b23e-445d-ad19-486d7fe3b1ff)
+  )
+  (hierarchical_label "GND" (shape input) (at 59.69 84.455 180)
+    (effects (font (size 1.27 1.27)) (justify right))
+    (uuid 70c9ad68-21f9-4153-902b-814b71ef5d87)
+  )
+
+  (symbol (lib_id "power:GND") (at 64.135 88.265 0) (unit 1)
+    (in_bom yes) (on_board yes) (fields_autoplaced)
+    (uuid 7e8d0945-a926-4fd0-a75d-01d612971808)
+    (property "Reference" "#PWR?" (id 0) (at 64.135 94.615 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Value" "GND" (id 1) (at 64.135 92.71 0))
+    (property "Footprint" "" (id 2) (at 64.135 88.265 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Datasheet" "" (id 3) (at 64.135 88.265 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (pin "1" (uuid cef9d5f7-d720-4862-8f73-05af629bfea1))
+  )
 )
diff --git a/04_pcb/milkFrother/user_interface.kicad_sch b/04_pcb/milkFrother/user_interface.kicad_sch
index 10c6d1a..7927226 100644
--- a/04_pcb/milkFrother/user_interface.kicad_sch
+++ b/04_pcb/milkFrother/user_interface.kicad_sch
@@ -1,6 +1,6 @@
 (kicad_sch (version 20211123) (generator eeschema)
 
-  (uuid d032d09d-f552-4d4c-9f25-d35a44ebcc92)
+  (uuid ce5207ea-5a88-44eb-85d4-a80abc8be9f2)
 
   (paper "A4")