diff --git a/lib/ocelot-brain b/lib/ocelot-brain
index 4691662..a47c5c7 160000
--- a/lib/ocelot-brain
+++ b/lib/ocelot-brain
@@ -1 +1 @@
-Subproject commit 4691662178402268036de50fc85522b3795fe190
+Subproject commit a47c5c77fcf007f8fc54246cd3b0a15f53bec5b0
diff --git a/sprites/Knob.png b/sprites/Knob.png
new file mode 100644
index 0000000..70b1dcf
Binary files /dev/null and b/sprites/Knob.png differ
diff --git a/sprites/KnobCenter.png b/sprites/KnobCenter.png
new file mode 100644
index 0000000..2d33316
Binary files /dev/null and b/sprites/KnobCenter.png differ
diff --git a/sprites/KnobLimits.png b/sprites/KnobLimits.png
new file mode 100644
index 0000000..ffb85ff
Binary files /dev/null and b/sprites/KnobLimits.png differ
diff --git a/src/main/resources/ocelot/desktop/spritesheet.png b/src/main/resources/ocelot/desktop/spritesheet.png
index fa0b5a7..38e6fd1 100644
Binary files a/src/main/resources/ocelot/desktop/spritesheet.png and b/src/main/resources/ocelot/desktop/spritesheet.png differ
diff --git a/src/main/resources/ocelot/desktop/spritesheet.txt b/src/main/resources/ocelot/desktop/spritesheet.txt
index 1cbc08d..5a1243b 100644
--- a/src/main/resources/ocelot/desktop/spritesheet.txt
+++ b/src/main/resources/ocelot/desktop/spritesheet.txt
@@ -1,105 +1,108 @@
 BackgroundPattern 0 0 304 304
 ComputerMotherboard 305 0 79 70
-Empty 417 0 1 1
-EmptySlot 441 96 18 18
-ShadowBorder 385 0 1 24
-ShadowCorner 424 71 24 24
-buttons/PowerOff 460 96 18 18
-buttons/PowerOn 479 96 18 18
-icons/CPU 424 144 16 16
-icons/Card 441 144 16 16
-icons/ComponentBus 458 144 16 16
-icons/DragLMB 424 129 21 14
-icons/DragRMB 446 129 21 14
-icons/EEPROM 475 144 16 16
-icons/Floppy 492 144 16 16
-icons/HDD 449 71 16 16
-icons/LMB 424 268 11 14
-icons/Memory 466 71 16 16
-icons/NA 483 71 16 16
-icons/RMB 436 268 11 14
-icons/RackMountable 356 168 16 16
-icons/Tier0 373 168 16 16
-icons/Tier1 390 168 16 16
-icons/Tier2 407 168 16 16
-items/APU0 356 71 16 96
-items/APU1 373 71 16 96
-items/APU2 390 71 16 96
-items/CPU0 424 168 16 16
-items/CPU1 441 168 16 16
-items/CPU2 458 168 16 16
-items/CardBase 475 168 16 16
-items/CircuitBoard 492 168 16 16
-items/ComponentBus0 305 200 16 16
-items/ComponentBus1 322 200 16 16
-items/ComponentBus2 339 200 16 16
-items/ComponentBus3 356 200 16 16
-items/DataCard0 305 71 16 128
-items/DataCard1 322 71 16 128
-items/DataCard2 339 71 16 128
-items/DebugCard 373 200 16 16
-items/DiskDriveMountable 390 200 16 16
-items/EEPROM 407 200 16 16
-items/FloppyDisk_dyeBlack 424 200 16 16
-items/FloppyDisk_dyeBlue 441 200 16 16
-items/FloppyDisk_dyeBrown 458 200 16 16
-items/FloppyDisk_dyeCyan 475 200 16 16
-items/FloppyDisk_dyeGray 492 200 16 16
-items/FloppyDisk_dyeGreen 305 217 16 16
-items/FloppyDisk_dyeLightBlue 322 217 16 16
-items/FloppyDisk_dyeLightGray 339 217 16 16
-items/FloppyDisk_dyeLime 356 217 16 16
-items/FloppyDisk_dyeMagenta 373 217 16 16
-items/FloppyDisk_dyeOrange 390 217 16 16
-items/FloppyDisk_dyePink 407 217 16 16
-items/FloppyDisk_dyePurple 424 217 16 16
-items/FloppyDisk_dyeRed 441 217 16 16
-items/FloppyDisk_dyeWhite 458 217 16 16
-items/FloppyDisk_dyeYellow 475 217 16 16
-items/GraphicsCard0 492 217 16 16
-items/GraphicsCard1 305 234 16 16
-items/GraphicsCard2 322 234 16 16
-items/HardDiskDrive0 339 234 16 16
-items/HardDiskDrive1 356 234 16 16
-items/HardDiskDrive2 373 234 16 16
-items/InternetCard 424 96 16 32
-items/LinkedCard 407 71 16 96
-items/Memory0 390 234 16 16
-items/Memory1 407 234 16 16
-items/Memory2 424 234 16 16
-items/Memory3 441 234 16 16
-items/Memory4 458 234 16 16
-items/Memory5 475 234 16 16
-items/NetworkCard 492 234 16 16
-items/RedstoneCard0 305 251 16 16
-items/RedstoneCard1 322 251 16 16
-items/Server0 339 251 16 16
-items/Server1 356 251 16 16
-items/Server2 373 251 16 16
-items/Server3 390 251 16 16
-items/WirelessNetworkCard0 407 251 16 16
-items/WirelessNetworkCard1 424 251 16 16
-nodes/Computer 441 251 16 16
-nodes/ComputerActivityOverlay 458 251 16 16
-nodes/ComputerErrorOverlay 475 251 16 16
-nodes/ComputerOnOverlay 492 251 16 16
-nodes/DiskDrive 305 268 16 16
-nodes/DiskDriveActivity 322 268 16 16
-nodes/DiskDriveFloppy 339 268 16 16
-nodes/NewNode 356 268 16 16
-nodes/Relay 373 268 16 16
-nodes/Screen 390 268 16 16
-nodes/ScreenOnOverlay 407 268 16 16
-screen/BorderB 390 0 2 8
-screen/BorderT 387 0 2 10
-screen/CornerBL 466 268 8 8
-screen/CornerBR 475 268 8 8
-screen/CornerTL 448 268 8 10
-screen/CornerTR 457 268 8 10
-window/BorderDark 413 0 1 4
-window/BorderLight 415 0 1 4
-window/CloseButton 484 268 7 6
-window/CornerBL 393 0 4 4
-window/CornerBR 398 0 4 4
-window/CornerTL 403 0 4 4
-window/CornerTR 408 0 4 4
+Empty 498 11 1 1
+EmptySlot 441 147 18 18
+Knob 385 0 50 50
+KnobCenter 436 0 50 50
+KnobLimits 305 71 50 50
+ShadowBorder 487 0 1 24
+ShadowCorner 424 122 24 24
+buttons/PowerOff 460 147 18 18
+buttons/PowerOn 479 147 18 18
+icons/CPU 424 195 16 16
+icons/Card 441 195 16 16
+icons/ComponentBus 458 195 16 16
+icons/DragLMB 424 180 21 14
+icons/DragRMB 446 180 21 14
+icons/EEPROM 475 195 16 16
+icons/Floppy 492 195 16 16
+icons/HDD 449 122 16 16
+icons/LMB 373 105 11 14
+icons/Memory 466 122 16 16
+icons/NA 483 122 16 16
+icons/RMB 385 105 11 14
+icons/RackMountable 356 219 16 16
+icons/Tier0 373 219 16 16
+icons/Tier1 390 219 16 16
+icons/Tier2 407 219 16 16
+items/APU0 356 122 16 96
+items/APU1 373 122 16 96
+items/APU2 390 122 16 96
+items/CPU0 424 219 16 16
+items/CPU1 441 219 16 16
+items/CPU2 458 219 16 16
+items/CardBase 475 219 16 16
+items/CircuitBoard 492 219 16 16
+items/ComponentBus0 305 251 16 16
+items/ComponentBus1 322 251 16 16
+items/ComponentBus2 339 251 16 16
+items/ComponentBus3 356 251 16 16
+items/DataCard0 305 122 16 128
+items/DataCard1 322 122 16 128
+items/DataCard2 339 122 16 128
+items/DebugCard 373 251 16 16
+items/DiskDriveMountable 390 251 16 16
+items/EEPROM 407 251 16 16
+items/FloppyDisk_dyeBlack 424 251 16 16
+items/FloppyDisk_dyeBlue 441 251 16 16
+items/FloppyDisk_dyeBrown 458 251 16 16
+items/FloppyDisk_dyeCyan 475 251 16 16
+items/FloppyDisk_dyeGray 492 251 16 16
+items/FloppyDisk_dyeGreen 305 268 16 16
+items/FloppyDisk_dyeLightBlue 322 268 16 16
+items/FloppyDisk_dyeLightGray 339 268 16 16
+items/FloppyDisk_dyeLime 356 268 16 16
+items/FloppyDisk_dyeMagenta 373 268 16 16
+items/FloppyDisk_dyeOrange 390 268 16 16
+items/FloppyDisk_dyePink 407 268 16 16
+items/FloppyDisk_dyePurple 424 268 16 16
+items/FloppyDisk_dyeRed 441 268 16 16
+items/FloppyDisk_dyeWhite 458 268 16 16
+items/FloppyDisk_dyeYellow 475 268 16 16
+items/GraphicsCard0 492 268 16 16
+items/GraphicsCard1 305 285 16 16
+items/GraphicsCard2 322 285 16 16
+items/HardDiskDrive0 339 285 16 16
+items/HardDiskDrive1 356 285 16 16
+items/HardDiskDrive2 373 285 16 16
+items/InternetCard 424 147 16 32
+items/LinkedCard 407 122 16 96
+items/Memory0 390 285 16 16
+items/Memory1 407 285 16 16
+items/Memory2 424 285 16 16
+items/Memory3 441 285 16 16
+items/Memory4 458 285 16 16
+items/Memory5 475 285 16 16
+items/NetworkCard 492 285 16 16
+items/RedstoneCard0 356 71 16 16
+items/RedstoneCard1 373 71 16 16
+items/Server0 390 71 16 16
+items/Server1 407 71 16 16
+items/Server2 424 71 16 16
+items/Server3 441 71 16 16
+items/WirelessNetworkCard0 458 71 16 16
+items/WirelessNetworkCard1 475 71 16 16
+nodes/Computer 492 71 16 16
+nodes/ComputerActivityOverlay 356 88 16 16
+nodes/ComputerErrorOverlay 373 88 16 16
+nodes/ComputerOnOverlay 390 88 16 16
+nodes/DiskDrive 407 88 16 16
+nodes/DiskDriveActivity 424 88 16 16
+nodes/DiskDriveFloppy 441 88 16 16
+nodes/NewNode 458 88 16 16
+nodes/Relay 475 88 16 16
+nodes/Screen 492 88 16 16
+nodes/ScreenOnOverlay 356 105 16 16
+screen/BorderB 492 0 2 8
+screen/BorderT 489 0 2 10
+screen/CornerBL 415 105 8 8
+screen/CornerBR 424 105 8 8
+screen/CornerTL 397 105 8 10
+screen/CornerTR 406 105 8 10
+window/BorderDark 494 11 1 4
+window/BorderLight 496 11 1 4
+window/CloseButton 433 105 7 6
+window/CornerBL 495 0 4 4
+window/CornerBR 500 0 4 4
+window/CornerTL 505 0 4 4
+window/CornerTR 489 11 4 4
diff --git a/src/main/scala/ocelot/desktop/node/nodes/ComputerWindow.scala b/src/main/scala/ocelot/desktop/node/nodes/ComputerWindow.scala
index 45647ab..4d4f630 100644
--- a/src/main/scala/ocelot/desktop/node/nodes/ComputerWindow.scala
+++ b/src/main/scala/ocelot/desktop/node/nodes/ComputerWindow.scala
@@ -9,6 +9,7 @@ import ocelot.desktop.ui.widget._
 import ocelot.desktop.ui.widget.window.BasicWindow
 import ocelot.desktop.util.{DrawUtils, Orientation}
 import totoro.ocelot.brain.entity.Case
+import totoro.ocelot.brain.util.DyeColor
 
 class ComputerWindow(computerNode: ComputerNode) extends BasicWindow {
   def computer: Case = computerNode.computer
@@ -42,6 +43,7 @@ class ComputerWindow(computerNode: ComputerNode) extends BasicWindow {
         }
       }, Padding2D(top = 44, left = 40))
 
+
       children :+= slotsWidget
     }
   }
diff --git a/src/main/scala/ocelot/desktop/ui/widget/Knob.scala b/src/main/scala/ocelot/desktop/ui/widget/Knob.scala
new file mode 100644
index 0000000..193aab2
--- /dev/null
+++ b/src/main/scala/ocelot/desktop/ui/widget/Knob.scala
@@ -0,0 +1,56 @@
+package ocelot.desktop.ui.widget
+
+import ocelot.desktop.color.{Color, IntColor}
+import ocelot.desktop.geometry.{Size2D, Vector2D}
+import ocelot.desktop.graphics.Graphics
+import ocelot.desktop.ui.UiHandler
+import ocelot.desktop.ui.event.MouseEvent
+import totoro.ocelot.brain.util.DyeColor
+
+abstract class Knob(dyeColor: DyeColor = DyeColor.RED) extends Widget {
+  def value: Int
+  def value_=(v: Int): Unit
+
+  val color: Color = {
+    var hsv = IntColor(dyeColor.rgb).toHSVA
+    if (hsv.v > 0.6) hsv = hsv.copy(v = 0.6f)
+    hsv.toRGBANorm
+  }
+
+  override def minimumSize: Size2D = Size2D(25, 25)
+  override def maximumSize: Size2D = minimumSize
+
+  override def receiveMouseEvents: Boolean = true
+
+  private var movePos: Option[Vector2D] = None
+  private var startValue: Int = 0
+
+  eventHandlers += {
+    case MouseEvent(MouseEvent.State.Press, MouseEvent.Button.Left) =>
+      val mousePos = UiHandler.mousePosition
+      if (bounds.contains(mousePos)) {
+        movePos = Some(mousePos)
+        startValue = value
+      }
+
+    case MouseEvent(MouseEvent.State.Release, MouseEvent.Button.Left) =>
+      movePos = None
+  }
+
+  override def update(): Unit = {
+    super.update()
+    if (movePos.isEmpty) return
+    val dist = (UiHandler.mousePosition.x - movePos.get.x) / 2f
+    value = (startValue + dist.toInt) min 15 max 0
+  }
+
+  override def draw(g: Graphics): Unit = {
+    g.sprite("KnobLimits", position.x, position.y, 25, 25)
+    g.save()
+    g.translate(position.x + 12.5f, position.y + 12.5f)
+    g.rotate(value.toFloat / 15f * 4.71239f - 0.785398f)
+    g.sprite("Knob", -12.5f, -12.5f, 25, 25, color)
+    g.restore()
+    g.sprite("KnobCenter", position.x, position.y, 25, 25)
+  }
+}
diff --git a/src/main/scala/ocelot/desktop/ui/widget/card/Redstone2Window.scala b/src/main/scala/ocelot/desktop/ui/widget/card/Redstone2Window.scala
new file mode 100644
index 0000000..a20c826
--- /dev/null
+++ b/src/main/scala/ocelot/desktop/ui/widget/card/Redstone2Window.scala
@@ -0,0 +1,79 @@
+package ocelot.desktop.ui.widget.card
+
+import ocelot.desktop.geometry.{Padding2D, Size2D}
+import ocelot.desktop.graphics.Graphics
+import ocelot.desktop.ui.layout.{AlignItems, Layout, LinearLayout}
+import ocelot.desktop.ui.widget.{Knob, Label, PaddingBox, Widget}
+import ocelot.desktop.ui.widget.window.BasicWindow
+import ocelot.desktop.util.{DrawUtils, Orientation}
+import totoro.ocelot.brain.entity.Redstone
+import totoro.ocelot.brain.util.DyeColor
+
+class Redstone2Window(card: Redstone.Tier2) extends BasicWindow {
+  private def bundledKnob(side: Int, col: Int) = new Knob(DyeColor.byCode(col)) {
+    override def value: Int = {
+      card.bundledRedstoneInput(side)(col)
+    }
+
+    override def value_=(v: Int): Unit = {
+      card.bundledRedstoneInput(side)(col) = v
+    }
+  }
+
+  private def bundledBlock(side: Int, name: String) = new PaddingBox(new Widget {
+    override protected val layout: Layout = new LinearLayout(this, orientation = Orientation.Vertical, alignItems = AlignItems.Center)
+    children :+= new Label {
+      override def text: String = name
+      override def maximumSize: Size2D = minimumSize
+    }
+    children :+= new Widget {
+      children :+= bundledKnob(side, 0)
+      children :+= bundledKnob(side, 1)
+      children :+= bundledKnob(side, 2)
+      children :+= bundledKnob(side, 3)
+    }
+    children :+= new Widget {
+      children :+= bundledKnob(side, 4)
+      children :+= bundledKnob(side, 5)
+      children :+= bundledKnob(side, 6)
+      children :+= bundledKnob(side, 7)
+    }
+    children :+= new Widget {
+      children :+= bundledKnob(side, 8)
+      children :+= bundledKnob(side, 9)
+      children :+= bundledKnob(side, 10)
+      children :+= bundledKnob(side, 11)
+    }
+    children :+= new Widget {
+      children :+= bundledKnob(side, 12)
+      children :+= bundledKnob(side, 13)
+      children :+= bundledKnob(side, 14)
+      children :+= bundledKnob(side, 15)
+    }
+  }, Padding2D.equal(4))
+
+  children :+= new PaddingBox(new Widget {
+    children :+= new Widget {
+      override protected val layout: Layout = new LinearLayout(this, orientation = Orientation.Vertical)
+      children :+= bundledBlock(0, "Bottom")
+      children :+= bundledBlock(1, "Top")
+    }
+    children :+= new Widget {
+      override protected val layout: Layout = new LinearLayout(this, orientation = Orientation.Vertical)
+      children :+= bundledBlock(2, "Back")
+      children :+= bundledBlock(3, "Front")
+    }
+    children :+= new Widget {
+      override protected val layout: Layout = new LinearLayout(this, orientation = Orientation.Vertical)
+      children :+= bundledBlock(4, "Right")
+      children :+= bundledBlock(5, "Left")
+    }
+  }, Padding2D.equal(8))
+
+  override def draw(g: Graphics): Unit = {
+    beginDraw(g)
+    DrawUtils.windowWithShadow(g, position.x, position.y, size.width, size.height, 1f, 0.5f)
+    drawChildren(g)
+    endDraw(g)
+  }
+}
diff --git a/src/main/scala/ocelot/desktop/ui/widget/slot/CardSlot.scala b/src/main/scala/ocelot/desktop/ui/widget/slot/CardSlot.scala
index 7d81207..caeeb96 100644
--- a/src/main/scala/ocelot/desktop/ui/widget/slot/CardSlot.scala
+++ b/src/main/scala/ocelot/desktop/ui/widget/slot/CardSlot.scala
@@ -2,7 +2,10 @@ package ocelot.desktop.ui.widget.slot
 
 import ocelot.desktop.graphics.IconDef
 import ocelot.desktop.node.nodes.ComputerNode
+import ocelot.desktop.ui.UiHandler
+import ocelot.desktop.ui.widget.card.Redstone2Window
 import ocelot.desktop.ui.widget.contextmenu.{ContextMenu, ContextMenuEntry, ContextMenuSubmenu}
+import totoro.ocelot.brain.entity.Redstone
 import totoro.ocelot.brain.entity.traits.Entity
 import totoro.ocelot.brain.util.Tier
 
@@ -12,6 +15,16 @@ class CardSlot(node: ComputerNode, val tier: Int) extends InventorySlot[Entity](
   override def icon: IconDef = new IconDef("icons/Card")
   override def tierIcon: Option[IconDef] = Some(new IconDef("icons/Tier" + tier))
 
+  override def fillRmbMenu(menu: ContextMenu): Unit = {
+    val pool = UiHandler.root.workspaceView.windowPool
+    item match {
+      case Some(card: Redstone.Tier2) =>
+        menu.addEntry(new ContextMenuEntry("Open", () => pool.openWindow(new Redstone2Window(card))))
+      case _ =>
+    }
+    super.fillRmbMenu(menu)
+  }
+
   override def fillLmbMenu(menu: ContextMenu): Unit = {
     val entries = CardRegistry.entries