diff --git a/src/main/resources/assets/opencomputers/loot/openos/bin/ps.lua b/src/main/resources/assets/opencomputers/loot/openos/bin/ps.lua
index e47180519..9a31a8abd 100644
--- a/src/main/resources/assets/opencomputers/loot/openos/bin/ps.lua
+++ b/src/main/resources/assets/opencomputers/loot/openos/bin/ps.lua
@@ -1,6 +1,7 @@
 local process = require("process")
 local unicode = require("unicode")
 local event = require("event")
+local thread = require("thread")
 local event_mt = getmetatable(event.handlers)
 
 -- WARNING this code does not use official kernel API and is likely to change
@@ -42,33 +43,38 @@ local cols =
     return count == 0 and "-" or tostring(count)
   end},
   {"THREADS", function(_,p)
-    -- threads are handles with mt.close
+    -- threads are handles with mt.close == thread.waitForAll
     local count = 0
-    for _,h in pairs(p.data.handles or {}) do
+    for h in pairs(p.data.handles) do
       local mt = getmetatable(h)
-      if mt and mt.__index and mt.__index.close then
-        count = count + #h
-        break -- there is only one thread handle manager
+      if mt and mt.__status then
+        count = count + 1
       end
     end
     return count == 0 and "-" or tostring(count)
   end},
   {"PARENT", function(_,p)
     for _,process_info in pairs(process.list) do
-      for _,handle in pairs(process_info.data.handles or {}) do
+      for handle in pairs(process_info.data.handles) do
         local mt = getmetatable(handle)
-        if mt and mt.__index and mt.__index.close then
-          for _,ht in ipairs(handle) do
-            local ht_mt = getmetatable(ht)
-            if ht_mt.process == p then
-              return thread_id(nil,process_info)
-            end
+        if mt and mt.__status then
+          if mt.process == p then
+            return thread_id(nil, process_info)
           end
-          break
         end
       end
     end
-    return thread_id(nil,p.parent)
+    return thread_id(nil, p.parent)
+  end},
+  {"HANDLES", function(_, p)
+    local count = 0
+    for stream,closure in pairs(p.data.handles) do
+      cprint(string.format("%s %s", stream, closure))
+      if closure then
+        count = count + 1
+      end
+    end
+    return count == 0 and "-" or tostring(count)
   end},
   {"CMD", function(_,p) return p.command end},
 }
diff --git a/src/main/resources/assets/opencomputers/loot/openos/boot/01_process.lua b/src/main/resources/assets/opencomputers/loot/openos/boot/01_process.lua
index a85e3af2d..9c2e9808b 100644
--- a/src/main/resources/assets/opencomputers/loot/openos/boot/01_process.lua
+++ b/src/main/resources/assets/opencomputers/loot/openos/boot/01_process.lua
@@ -1,4 +1,5 @@
 local process = require("process")
+local fs = require("filesystem")
 
 --Initialize coroutine library--
 local _coroutine = coroutine -- real coroutine backend
@@ -62,8 +63,20 @@ process.list[init_thread] = {
   data =
   {
     vars={},
+    handles={},
     io={}, --init will populate this
     coroutine_handler = _coroutine
   },
   instances = setmetatable({}, {__mode="v"})
 }
+
+-- intercept fs open
+local fs_open = fs.open 
+fs.open = function(...)
+  local fs_open_result = table.pack(fs_open(...))
+  if fs_open_result[1] then
+    process.closeOnExit(fs_open_result[1])
+  end
+  return table.unpack(fs_open_result, 1, fs_open_result.n)
+end
+
diff --git a/src/main/resources/assets/opencomputers/loot/openos/lib/buffer.lua b/src/main/resources/assets/opencomputers/loot/openos/lib/buffer.lua
index 2d128df54..369ca9a85 100644
--- a/src/main/resources/assets/opencomputers/loot/openos/lib/buffer.lua
+++ b/src/main/resources/assets/opencomputers/loot/openos/lib/buffer.lua
@@ -17,21 +17,32 @@ function buffer.new(mode, stream)
     bufferWrite = "",
     bufferSize = math.max(512, math.min(8 * 1024, computer.freeMemory() / 8)),
     bufferMode = "full",
-    readTimeout = math.huge
+    readTimeout = math.huge,
   }
   mode = mode or "r"
   for i = 1, unicode.len(mode) do
     result.mode[unicode.sub(mode, i, i)] = true
   end
+  -- when stream closes, result should close first
+  -- when result closes, stream should close after
+  -- when stream closes, it is removed from the proc
+  stream.close = setmetatable({close = stream.close,parent = result},{__call = buffer.close})
   return setmetatable(result, metatable)
 end
 
 function buffer:close()
-  if self.mode.w or self.mode.a then
-    self:flush()
+  -- self is either the buffer, or the stream.close callable
+  local meta = getmetatable(self)
+  if meta == metatable.__metatable then
+    return self.stream:close()
   end
-  self.closed = true
-  return self.stream:close()
+  local parent = self.parent
+
+  if parent.mode.w or parent.mode.a then
+    parent:flush()
+  end
+  parent.closed = true
+  return self.close(parent.stream)
 end
 
 function buffer:flush()
diff --git a/src/main/resources/assets/opencomputers/loot/openos/lib/core/full_sh.lua b/src/main/resources/assets/opencomputers/loot/openos/lib/core/full_sh.lua
index 3bd48a95c..2a7334737 100644
--- a/src/main/resources/assets/opencomputers/loot/openos/lib/core/full_sh.lua
+++ b/src/main/resources/assets/opencomputers/loot/openos/lib/core/full_sh.lua
@@ -78,7 +78,7 @@ end
 -- redirects as built by buildCommentRedirects
 function sh.internal.openCommandRedirects(redirects)
   local data = process.info().data
-  local ios, handles = data.io, data.handles
+  local ios = data.io
 
   for _,rjob in ipairs(redirects) do
     local from_io, to_io, mode = table.unpack(rjob)
@@ -93,7 +93,6 @@ function sh.internal.openCommandRedirects(redirects)
         io.stderr:write("could not open '" .. to_io .. "': " .. reason .. "\n")
         os.exit(1)
       end
-      table.insert(handles, file)
       ios[from_io] = file
     end
   end
diff --git a/src/main/resources/assets/opencomputers/loot/openos/lib/pipe.lua b/src/main/resources/assets/opencomputers/loot/openos/lib/pipe.lua
index 80904f055..4b551b241 100644
--- a/src/main/resources/assets/opencomputers/loot/openos/lib/pipe.lua
+++ b/src/main/resources/assets/opencomputers/loot/openos/lib/pipe.lua
@@ -134,16 +134,16 @@ function pipe.buildPipeChain(progs)
     -- B needs to be a stack in case any thread in B calls read
     pipe.createCoroutineStack(thread)
     chain[i] = thread
-    local data = process.info(thread).data
-    local pio = data.io
+    local proc = process.info(thread)
+    local pio = proc.data.io
 
     local piped_stream
     if i < #progs then
       local handle = setmetatable({redirect = {rawget(pio, 1)},buffer = ""}, {__index = pipe_stream})
+      process.closeOnExit(handle, proc)
       piped_stream = buffer.new("rw", handle)
       piped_stream:setvbuf("no", 1024)
       pio[1] = piped_stream
-      table.insert(data.handles, piped_stream)
     end
 
     if prev_piped_stream then
@@ -194,7 +194,7 @@ function pipe.popen(prog, mode, env)
 
   local chain = {}
   -- to simplify the code - shell.execute is run within a function to pass (prog, env)
-  -- if cmd_proc where to come second (mode=="w") then the pipe_proc would have to pass
+  -- if cmd_proc were to come second (mode=="w") then the pipe_proc would have to pass
   -- the starting args. which is possible, just more complicated
   local cmd_proc = process.load(function() return shell.execute(prog, env) end, nil, nil, prog)
 
diff --git a/src/main/resources/assets/opencomputers/loot/openos/lib/process.lua b/src/main/resources/assets/opencomputers/loot/openos/lib/process.lua
index de7d99428..42a669111 100644
--- a/src/main/resources/assets/opencomputers/loot/openos/lib/process.lua
+++ b/src/main/resources/assets/opencomputers/loot/openos/lib/process.lua
@@ -125,7 +125,11 @@ function process.internal.close(thread, result)
   checkArg(1,thread,"thread")
   local pdata = process.info(thread).data
   pdata.result = result
-  for _,v in pairs(pdata.handles) do
+  local handles = {}
+  for s,_ in pairs(pdata.handles) do
+    table.insert(handles, s)
+  end
+  for _,v in ipairs(handles) do
     pcall(v.close, v)
   end
   process.list[thread] = nil
@@ -146,6 +150,20 @@ function process.internal.continue(co, ...)
   return table.unpack(result, 2, result.n)
 end
 
+function process.closeOnExit(stream, proc)
+  local handles = (proc or process.info()).data.handles
+  if not handles[stream] then
+    handles[stream] = stream.close
+    stream.close = function(...)
+      local close = handles[stream]
+      handles[stream] = nil
+      if close then
+        return close(...)
+      end
+    end
+  end
+end
+
 function process.running(level) -- kept for backwards compat, prefer process.info
   local info = process.info(level)
   if info then
diff --git a/src/main/resources/assets/opencomputers/loot/openos/lib/thread.lua b/src/main/resources/assets/opencomputers/loot/openos/lib/thread.lua
index 2e155a423..8bd36800b 100644
--- a/src/main/resources/assets/opencomputers/loot/openos/lib/thread.lua
+++ b/src/main/resources/assets/opencomputers/loot/openos/lib/thread.lua
@@ -60,22 +60,6 @@ function thread.waitForAll(threads, timeout)
 end
 
 local box_thread = {}
-local box_thread_list = {close = thread.waitForAll}
-
-local function get_process_threads(proc, bCreate)
-  local handles = proc.data.handles
-  for _,next_handle in ipairs(handles) do
-    local handle_mt = getmetatable(next_handle)
-    if handle_mt and handle_mt.__index == box_thread_list then
-      return next_handle
-    end
-  end
-  if bCreate then
-    local btm = setmetatable({}, {__index = box_thread_list})
-    table.insert(handles, btm)
-    return btm
-  end
-end
 
 function box_thread:resume()
   local mt = getmetatable(self)
@@ -120,31 +104,25 @@ function box_thread:detach()
 end
 
 function box_thread:attach(parent)
-  checkArg(1, parent, "thread", "number", "nil")
-  local mt = assert(getmetatable(self), "thread panic: no metadata")
   local proc = process.info(parent)
+  local mt = assert(getmetatable(self), "thread panic: no metadata")
   if not proc then return nil, "thread failed to attach, process not found" end
   if mt.attached == proc then return self end -- already attached
 
+  -- remove from old parent
+  local waiting_handler
   if mt.attached then
-    local prev_threads = assert(get_process_threads(mt.attached), "thread panic: no thread handle")
-    for index,t_in_list in ipairs(prev_threads) do
-      if t_in_list == self then
-        table.remove(prev_threads, index)
-        break
-      end
-    end
+    -- registration happens on the attached proc, unregister before reparenting
+    waiting_handler = mt.unregister()
+    mt.attached.data.handles[self] = nil
   end
 
-  -- registration happens on the attached proc, unregister before reparenting
-  local waiting_handler = mt.unregister()
+  -- fix close
+  self.close = self.join
 
   -- attach to parent or the current process
   mt.attached = proc
-
-  -- this process may not have a box_thread list
-  local threads = get_process_threads(proc, true)
-  table.insert(threads, self)
+  process.closeOnExit(self, proc)
 
   -- register on the new parent
   if waiting_handler then -- event-waiting
@@ -159,9 +137,9 @@ function thread.current()
   local thread_root
   while proc do
     if thread_root then
-      for _,bt in ipairs(get_process_threads(proc) or {}) do
-        if bt.pco.root == thread_root then
-          return bt
+      for handle in pairs(proc.data.handles) do
+        if handle.pco and handle.pco.root == thread_root then
+          return handle
         end
       end
     else
@@ -174,9 +152,8 @@ end
 function thread.create(fp, ...)
   checkArg(1, fp, "function")
 
-  local t = {}
   local mt = {__status="suspended",__index=box_thread}
-  setmetatable(t, mt)
+  local t = setmetatable({}, mt)
   t.pco = pipe.createCoroutineStack(function(...)
     mt.__status = "running"
     local fp_co = t.pco.create(fp)
@@ -246,7 +223,7 @@ function thread.create(fp, ...)
     mt.id = nil
     mt.reg = nil
     -- before just removing a handler, make sure it is still ours
-    if id and mt.attached and mt.attached.data.handlers[id] == reg then
+    if id and mt.attached.data.handlers[id] == reg then
       mt.attached.data.handlers[id] = nil
       return reg
     end
@@ -285,18 +262,12 @@ function thread.create(fp, ...)
   end
 
   function mt.close()
-    if t:status() == "dead" then
-      return
-    end
-    local threads = get_process_threads(mt.attached)
-    for index,t_in_list in ipairs(threads) do
-      if t_in_list == t then
-        table.remove(threads, index)
-        break
-      end
-    end
+    local old_status = t:status()
     mt.__status = "dead"
-    event.push("thread_exit")
+    mt.attached.data.handles[t] = nil
+    if old_status ~= "dead" then
+      event.push("thread_exit")
+    end
   end
 
   t:attach() -- the current process
@@ -321,8 +292,6 @@ do
     end
     assert(init_thread, "thread library panic: no init thread")
     handlers_mt.threaded = true
-    -- handles might be optimized out for memory
-    root_data.handles = root_data.handles or {}
     -- if we don't separate root handlers from thread handlers we see double dispatch
     -- because the thread calls dispatch on pull as well
     root_data.handlers = {} -- root handlers
diff --git a/src/main/resources/assets/opencomputers/lua/machine.lua b/src/main/resources/assets/opencomputers/lua/machine.lua
index 06f07a70f..d8c3eb540 100644
--- a/src/main/resources/assets/opencomputers/lua/machine.lua
+++ b/src/main/resources/assets/opencomputers/lua/machine.lua
@@ -938,7 +938,14 @@ sandbox = {
         }
       end
     end,
-    traceback = debug.traceback
+    traceback = debug.traceback,
+    -- using () to wrap the return of debug methods because in Lua doing this
+    -- causes only the first return value to be selected
+    -- e.g. (1, 2) is only (1), the 2 is not returned
+    -- this is critically important here because the 2nd return value from these
+    -- debug methods is the value itself, which opens a door to exploit the sandbox
+    getlocal = function(...) return (debug.getlocal(...)) end,
+    getupvalue = function(...) return (debug.getupvalue(...)) end,
   },
 
   -- Lua 5.3.
diff --git a/src/main/scala/li/cil/oc/common/container/Player.scala b/src/main/scala/li/cil/oc/common/container/Player.scala
index 8f65d3696..e532e8f49 100644
--- a/src/main/scala/li/cil/oc/common/container/Player.scala
+++ b/src/main/scala/li/cil/oc/common/container/Player.scala
@@ -51,54 +51,64 @@ abstract class Player(val playerInventory: InventoryPlayer, val otherInventory:
     ItemStack.EMPTY
   }
 
-  protected def tryTransferStackInSlot(from: Slot, intoPlayerInventory: Boolean) {
+  // return true if all items have been moved or no more work to do
+  protected def tryMoveAllSlotToSlot(from: Slot, to: Slot): Boolean = {
+    if (to == null)
+      return false // nowhere to move it
+
+    if (from == null ||
+       !from.getHasStack ||
+        from.getStack.isEmpty)
+      return true // all moved because nothing to move
+
+    if (to.inventory == from.inventory)
+      return false // not intended for moving in the same inventory
+
+    // for ghost slots we don't care about stack size
     val fromStack = from.getStack
-    var somethingChanged = false
+    val toStack = if (to.getHasStack) to.getStack else null
+    val toStackSize = if (!toStack.isEmpty) toStack.getCount else 0
 
-    val step = if (intoPlayerInventory) -1 else 1
-    val (begin, end) =
-      if (intoPlayerInventory) (inventorySlots.size - 1, 0)
-      else (0, inventorySlots.size - 1)
+    val maxStackSize = math.min(fromStack.getMaxStackSize, to.getSlotStackLimit)
+    val itemsMoved = math.min(maxStackSize - toStackSize, fromStack.getCount)
 
-    if (fromStack.getMaxStackSize > 1) for (i <- begin to end by step if i >= 0 && i < inventorySlots.size && from.getHasStack && from.getStack.getCount > 0) {
-      val intoSlot = inventorySlots.get(i)
-      if (intoSlot.inventory != from.inventory && intoSlot.getHasStack) {
-        val intoStack = intoSlot.getStack
-        val itemsAreEqual = fromStack.isItemEqual(intoStack) && ItemStack.areItemStackTagsEqual(fromStack, intoStack)
-        val maxStackSize = math.min(fromStack.getMaxStackSize, intoSlot.getSlotStackLimit)
-        val slotHasCapacity = intoStack.getCount < maxStackSize
-        if (itemsAreEqual && slotHasCapacity) {
-          val itemsMoved = math.min(maxStackSize - intoStack.getCount, fromStack.getCount)
-          if (itemsMoved > 0) {
-            intoStack.grow(from.decrStackSize(itemsMoved).getCount)
-            intoSlot.onSlotChanged()
-            somethingChanged = true
-          }
-        }
+    if (toStack != null) {
+      if (toStackSize < maxStackSize &&
+          fromStack.isItemEqual(toStack) &&
+          ItemStack.areItemStackTagsEqual(fromStack, toStack) &&
+          itemsMoved > 0) {
+        toStack.grow(from.decrStackSize(itemsMoved).getCount)
+      } else return false
+    } else if (to.isItemValid(fromStack)) {
+      to.putStack(from.decrStackSize(itemsMoved))
+      if (maxStackSize == 0) {
+        // Special case: we have an inventory with "phantom/ghost stacks", i.e.
+        // zero size stacks, usually used for configuring machinery. In that
+        // case we stop early if whatever we're shift clicking is already in a
+        // slot of the target inventory. This workaround can be problematic if
+        // an inventory has both real and phantom slots, but we don't have
+        // something like that, yet, so hey.
+        return true
       }
-    }
+    } else return false
 
-    for (i <- begin to end by step if i >= 0 && i < inventorySlots.size && from.getHasStack && from.getStack.getCount > 0) {
-      val intoSlot = inventorySlots.get(i)
-      if (intoSlot.inventory != from.inventory && !intoSlot.getHasStack && intoSlot.isItemValid(fromStack)) {
-        val maxStackSize = math.min(fromStack.getMaxStackSize, intoSlot.getSlotStackLimit)
-        val itemsMoved = math.min(maxStackSize, fromStack.getCount)
-        intoSlot.putStack(from.decrStackSize(itemsMoved))
-        if (maxStackSize == 0) {
-          // Special case: we have an inventory with "phantom/ghost stacks", i.e.
-          // zero size stacks, usually used for configuring machinery. In that
-          // case we stop early if whatever we're shift clicking is already in a
-          // slot of the target inventory. This workaround can be problematic if
-          // an inventory has both real and phantom slots, but we don't have
-          // something like that, yet, so hey.
-          return
-        }
-        somethingChanged = true
-      }
-    }
+    to.onSlotChanged()
+    from.onSlotChanged()
+    false
+  }
 
-    if (somethingChanged) {
-      from.onSlotChanged()
+  protected def fillOrder(backFill: Boolean): Seq[Int] = {
+    (if (backFill) inventorySlots.indices.reverse else inventorySlots.indices).sortBy(i => inventorySlots(i) match {
+      case s: Slot if s.getHasStack => -1
+      case s: ComponentSlot => s.tier
+      case _ => 99
+    })
+  }
+
+  protected def tryTransferStackInSlot(from: Slot, intoPlayerInventory: Boolean) {
+    for (i <- fillOrder(intoPlayerInventory)) {
+      if (inventorySlots.get(i) match { case slot: Slot => tryMoveAllSlotToSlot(from, slot) case _ => false })
+        return
     }
   }
 
diff --git a/src/main/scala/li/cil/oc/common/init/Items.scala b/src/main/scala/li/cil/oc/common/init/Items.scala
index cfeb7410e..9d19641e5 100644
--- a/src/main/scala/li/cil/oc/common/init/Items.scala
+++ b/src/main/scala/li/cil/oc/common/init/Items.scala
@@ -249,6 +249,7 @@ object Items extends ItemAPI {
     data.components = Array(
       safeGetStack(Constants.BlockName.ScreenTier1),
       safeGetStack(Constants.BlockName.Keyboard),
+      safeGetStack(Constants.BlockName.Geolyzer),
       safeGetStack(Constants.ItemName.InventoryUpgrade),
       safeGetStack(Constants.ItemName.InventoryUpgrade),
       safeGetStack(Constants.ItemName.InventoryUpgrade),
@@ -257,6 +258,7 @@ object Items extends ItemAPI {
       safeGetStack(Constants.ItemName.TankUpgrade),
       safeGetStack(Constants.ItemName.TankControllerUpgrade),
       safeGetStack(Constants.ItemName.CraftingUpgrade),
+      safeGetStack(Constants.ItemName.HoverUpgradeTier2),
 
       safeGetStack(Constants.ItemName.GraphicsCardTier3),
       safeGetStack(Constants.ItemName.RedstoneCardTier2),
diff --git a/src/main/scala/li/cil/oc/common/inventory/ComponentInventory.scala b/src/main/scala/li/cil/oc/common/inventory/ComponentInventory.scala
index f79cd2d86..7fbdf4be9 100644
--- a/src/main/scala/li/cil/oc/common/inventory/ComponentInventory.scala
+++ b/src/main/scala/li/cil/oc/common/inventory/ComponentInventory.scala
@@ -130,7 +130,7 @@ trait ComponentInventory extends Inventory with network.Environment {
 
   override def getInventoryStackLimit = 1
 
-  override protected def onItemAdded(slot: Int, stack: ItemStack) = if (isComponentSlot(slot, stack)) {
+  override protected def onItemAdded(slot: Int, stack: ItemStack) = if (slot >= 0 && slot < components.length && isComponentSlot(slot, stack)) {
     Option(Driver.driverFor(stack)).foreach(driver =>
       Option(driver.createEnvironment(stack, host)) match {
         case Some(component) => this.synchronized {
@@ -154,7 +154,7 @@ trait ComponentInventory extends Inventory with network.Environment {
       })
   }
 
-  override protected def onItemRemoved(slot: Int, stack: ItemStack) {
+  override protected def onItemRemoved(slot: Int, stack: ItemStack): Unit = if (slot >= 0 && slot < components.length) {
     // Uninstall component previously in that slot.
     components(slot) match {
       case Some(component) => this.synchronized {
diff --git a/src/main/scala/li/cil/oc/common/tileentity/NetSplitter.scala b/src/main/scala/li/cil/oc/common/tileentity/NetSplitter.scala
index 90a720913..48551bfaf 100644
--- a/src/main/scala/li/cil/oc/common/tileentity/NetSplitter.scala
+++ b/src/main/scala/li/cil/oc/common/tileentity/NetSplitter.scala
@@ -4,6 +4,7 @@ import li.cil.oc.Settings
 import li.cil.oc.api
 import li.cil.oc.api.network.Visibility
 import li.cil.oc.common.EventHandler
+import li.cil.oc.common.tileentity.traits.RedstoneChangedEventArgs
 import li.cil.oc.server.{PacketSender => ServerPacketSender}
 import net.minecraft.init.SoundEvents
 import net.minecraft.nbt.NBTTagCompound
@@ -52,10 +53,10 @@ class NetSplitter extends traits.Environment with traits.OpenSides with traits.R
 
   // ----------------------------------------------------------------------- //
 
-  override protected def onRedstoneInputChanged(side: EnumFacing, oldMaxValue: Int, newMaxValue: Int): Unit = {
-    super.onRedstoneInputChanged(side, oldMaxValue, newMaxValue)
+  override protected def onRedstoneInputChanged(args: RedstoneChangedEventArgs): Unit = {
+    super.onRedstoneInputChanged(args)
     val oldIsInverted = isInverted
-    isInverted = newMaxValue > 0
+    isInverted = args.newValue > 0
     if (isInverted != oldIsInverted) {
       if (isServer) {
         node.remove()
diff --git a/src/main/scala/li/cil/oc/common/tileentity/Print.scala b/src/main/scala/li/cil/oc/common/tileentity/Print.scala
index 5e97ed300..391fd379a 100644
--- a/src/main/scala/li/cil/oc/common/tileentity/Print.scala
+++ b/src/main/scala/li/cil/oc/common/tileentity/Print.scala
@@ -7,6 +7,7 @@ import li.cil.oc.Constants
 import li.cil.oc.Settings
 import li.cil.oc.api
 import li.cil.oc.common.item.data.PrintData
+import li.cil.oc.common.tileentity.traits.RedstoneChangedEventArgs
 import li.cil.oc.util.ExtendedAABB
 import li.cil.oc.util.ExtendedAABB._
 import li.cil.oc.util.ExtendedNBT._
@@ -145,9 +146,8 @@ class Print(val canToggle: Option[() => Boolean], val scheduleUpdate: Option[Int
     }
   }
 
-  override protected def onRedstoneInputChanged(side: EnumFacing, oldMaxValue: Int, newMaxValue: Int): Unit = {
-    super.onRedstoneInputChanged(side, oldMaxValue, newMaxValue)
-    val newState = newMaxValue > 0
+  override protected def onRedstoneInputChanged(args: RedstoneChangedEventArgs): Unit = {
+    val newState = args.newValue > 0
     if (!data.emitRedstone && data.hasActiveState && state != newState) {
       toggleState()
     }
diff --git a/src/main/scala/li/cil/oc/common/tileentity/Rack.scala b/src/main/scala/li/cil/oc/common/tileentity/Rack.scala
index 99510eefc..d923d851f 100644
--- a/src/main/scala/li/cil/oc/common/tileentity/Rack.scala
+++ b/src/main/scala/li/cil/oc/common/tileentity/Rack.scala
@@ -16,6 +16,7 @@ import li.cil.oc.api.network.Packet
 import li.cil.oc.api.network.Visibility
 import li.cil.oc.api.util.StateAware
 import li.cil.oc.common.Slot
+import li.cil.oc.common.tileentity.traits.RedstoneChangedEventArgs
 import li.cil.oc.integration.opencomputers.DriverRedstoneCard
 import li.cil.oc.server.{PacketSender => ServerPacketSender}
 import li.cil.oc.util.ExtendedInventory._
@@ -290,11 +291,11 @@ class Rack extends traits.PowerAcceptor with traits.Hub with traits.PowerBalance
   // ----------------------------------------------------------------------- //
   // RedstoneAware
 
-  override protected def onRedstoneInputChanged(side: EnumFacing, oldMaxValue: Int, newMaxValue: Int) {
-    super.onRedstoneInputChanged(side, oldMaxValue, newMaxValue)
+  override protected def onRedstoneInputChanged(args: RedstoneChangedEventArgs) {
+    super.onRedstoneInputChanged(args)
     components.collect {
       case Some(mountable: RackMountable) if mountable.node != null =>
-        mountable.node.sendToNeighbors("redstone.changed", toLocal(side), int2Integer(oldMaxValue), int2Integer(newMaxValue))
+        mountable.node.sendToNeighbors("redstone.changed", args)
     }
   }
 
diff --git a/src/main/scala/li/cil/oc/common/tileentity/Redstone.scala b/src/main/scala/li/cil/oc/common/tileentity/Redstone.scala
index f44dc9063..19acb84f6 100644
--- a/src/main/scala/li/cil/oc/common/tileentity/Redstone.scala
+++ b/src/main/scala/li/cil/oc/common/tileentity/Redstone.scala
@@ -5,6 +5,7 @@ import li.cil.oc.api
 import li.cil.oc.api.network.Component
 import li.cil.oc.api.network.Node
 import li.cil.oc.api.network.Visibility
+import li.cil.oc.common.tileentity.traits.RedstoneChangedEventArgs
 import li.cil.oc.integration.util.BundledRedstone
 import li.cil.oc.server.component
 import li.cil.oc.server.component.RedstoneVanilla
@@ -43,11 +44,11 @@ class Redstone extends traits.Environment with traits.BundledRedstoneAware with
 
   // ----------------------------------------------------------------------- //
 
-  override protected def onRedstoneInputChanged(side: EnumFacing, oldMaxValue: Int, newMaxValue: Int) {
-    super.onRedstoneInputChanged(side, oldMaxValue, newMaxValue)
+  override protected def onRedstoneInputChanged(args: RedstoneChangedEventArgs) {
+    super.onRedstoneInputChanged(args)
     if (node != null && node.network != null) {
       node.connect(dummyNode)
-      dummyNode.sendToNeighbors("redstone.changed", side, Int.box(oldMaxValue), Int.box(newMaxValue))
+      dummyNode.sendToNeighbors("redstone.changed", args)
     }
   }
 }
diff --git a/src/main/scala/li/cil/oc/common/tileentity/Screen.scala b/src/main/scala/li/cil/oc/common/tileentity/Screen.scala
index 3d8983055..28233912a 100644
--- a/src/main/scala/li/cil/oc/common/tileentity/Screen.scala
+++ b/src/main/scala/li/cil/oc/common/tileentity/Screen.scala
@@ -6,6 +6,7 @@ import li.cil.oc.api.network._
 import li.cil.oc.client.gui
 import li.cil.oc.common.component.TextBuffer
 import li.cil.oc.util.BlockPosition
+import li.cil.oc.common.tileentity.traits.RedstoneChangedEventArgs
 import li.cil.oc.util.Color
 import li.cil.oc.util.ExtendedWorld._
 import net.minecraft.client.Minecraft
@@ -344,8 +345,8 @@ class Screen(var tier: Int) extends traits.TextBuffer with SidedEnvironment with
 
   override def onAnalyze(player: EntityPlayer, side: EnumFacing, hitX: Float, hitY: Float, hitZ: Float) = Array(origin.node)
 
-  override protected def onRedstoneInputChanged(side: EnumFacing, oldMaxValue: Int, newMaxValue: Int) {
-    super.onRedstoneInputChanged(side, oldMaxValue, newMaxValue)
+  override protected def onRedstoneInputChanged(args: RedstoneChangedEventArgs) {
+    super.onRedstoneInputChanged(args)
     val hasRedstoneInput = screens.map(_.maxInput).max > 0
     if (hasRedstoneInput != hadRedstoneInput) {
       hadRedstoneInput = hasRedstoneInput
diff --git a/src/main/scala/li/cil/oc/common/tileentity/traits/BundledRedstoneAware.scala b/src/main/scala/li/cil/oc/common/tileentity/traits/BundledRedstoneAware.scala
index 27eadcd82..71f2b02ce 100644
--- a/src/main/scala/li/cil/oc/common/tileentity/traits/BundledRedstoneAware.scala
+++ b/src/main/scala/li/cil/oc/common/tileentity/traits/BundledRedstoneAware.scala
@@ -32,39 +32,31 @@ trait BundledRedstoneAware extends RedstoneAware {
     super.isOutputEnabled_=(value)
   }
 
+  def bundledInput(side: EnumFacing, color: Int): Int =
+    math.max(_bundledInput(side.ordinal())(color), _rednetInput(side.ordinal())(color))
+
   def bundledInput(side: EnumFacing): Array[Int] =
     (_bundledInput(side.ordinal()), _rednetInput(side.ordinal())).zipped.map(math.max)
 
   def bundledInput(side: EnumFacing, newBundledInput: Array[Int]): Unit = {
-    val ownBundledInput = _bundledInput(side.ordinal())
-    val oldMaxValue = ownBundledInput.max
-    var changed = false
-    if (newBundledInput != null) for (color <- 0 until 16) {
-      changed = changed || (ownBundledInput(color) >= 0 && ownBundledInput(color) != newBundledInput(color))
-      ownBundledInput(color) = newBundledInput(color)
-    }
-    else for (color <- 0 until 16) {
-      changed = changed || ownBundledInput(color) > 0
-      ownBundledInput(color) = 0
-    }
-    if (changed) {
-      onRedstoneInputChanged(side, oldMaxValue, ownBundledInput.max)
+    for (color <- 0 until 16) {
+      updateInput(_bundledInput, side, color, if (newBundledInput == null) 0 else newBundledInput(color))
     }
   }
 
-  def bundledInput(side: EnumFacing, color: Int): Int =
-    math.max(_bundledInput(side.ordinal())(color), _rednetInput(side.ordinal())(color))
+  def rednetInput(side: EnumFacing, color: Int, value: Int): Unit = updateInput(_rednetInput, side, color, value)
 
-  def rednetInput(side: EnumFacing, color: Int, value: Int): Unit = {
-    val oldValue = _rednetInput(side.ordinal())(color)
-    if (oldValue != value) {
+  def updateInput(inputs: Array[Array[Int]], side: EnumFacing, color: Int, newValue: Int): Unit = {
+    val oldValue = inputs(side.ordinal())(color)
+    if (oldValue != newValue) {
       if (oldValue != -1) {
-        onRedstoneInputChanged(side, oldValue, value)
+        onRedstoneInputChanged(RedstoneChangedEventArgs(side, oldValue, newValue, color))
       }
-      _rednetInput(side.ordinal())(color) = value
+      inputs(side.ordinal())(color) = newValue
     }
   }
 
+
   def bundledOutput(side: EnumFacing): Array[Int] = _bundledOutput(toLocal(side).ordinal())
 
   def bundledOutput(side: EnumFacing, color: Int): Int = bundledOutput(side)(color)
diff --git a/src/main/scala/li/cil/oc/common/tileentity/traits/Computer.scala b/src/main/scala/li/cil/oc/common/tileentity/traits/Computer.scala
index 38e5cbf39..61129870f 100644
--- a/src/main/scala/li/cil/oc/common/tileentity/traits/Computer.scala
+++ b/src/main/scala/li/cil/oc/common/tileentity/traits/Computer.scala
@@ -203,9 +203,9 @@ trait Computer extends Environment with ComponentInventory with Rotatable with B
     checkRedstoneInputChanged()
   }
 
-  override protected def onRedstoneInputChanged(side: EnumFacing, oldMaxValue: Int, newMaxValue: Int) {
-    super.onRedstoneInputChanged(side, oldMaxValue, newMaxValue)
-    machine.node.sendToNeighbors("redstone.changed", toLocal(side), Int.box(oldMaxValue), Int.box(newMaxValue))
+  override protected def onRedstoneInputChanged(args: RedstoneChangedEventArgs) {
+    super.onRedstoneInputChanged(args)
+    machine.node.sendToNeighbors("redstone.changed", args)
   }
 
   // ----------------------------------------------------------------------- //
diff --git a/src/main/scala/li/cil/oc/common/tileentity/traits/Hub.scala b/src/main/scala/li/cil/oc/common/tileentity/traits/Hub.scala
index 3dc84b8a1..24ef31f41 100644
--- a/src/main/scala/li/cil/oc/common/tileentity/traits/Hub.scala
+++ b/src/main/scala/li/cil/oc/common/tileentity/traits/Hub.scala
@@ -17,7 +17,11 @@ import scala.collection.mutable
 trait Hub extends traits.Environment with SidedEnvironment with Tickable {
   override def node: Node = null
 
-  override protected def isConnected = plugs.exists(plug => plug.node.address != null && plug.node.network != null)
+  override protected def isConnected = plugs.exists(plug =>
+    plug != null &&
+    plug.node != null &&
+    plug.node.address != null &&
+    plug.node.network != null)
 
   protected val plugs = EnumFacing.values.map(side => createPlug(side))
 
@@ -127,7 +131,8 @@ trait Hub extends traits.Environment with SidedEnvironment with Tickable {
     if (isServer) {
       nbt.setNewTagList(PlugsTag, plugs.map(plug => {
         val plugNbt = new NBTTagCompound()
-        plug.node.save(plugNbt)
+        if (plug.node != null)
+          plug.node.save(plugNbt)
         plugNbt
       }))
       nbt.setNewTagList(QueueTag, queue.map {
diff --git a/src/main/scala/li/cil/oc/common/tileentity/traits/RedstoneAware.scala b/src/main/scala/li/cil/oc/common/tileentity/traits/RedstoneAware.scala
index cd886160f..d2b674b22 100644
--- a/src/main/scala/li/cil/oc/common/tileentity/traits/RedstoneAware.scala
+++ b/src/main/scala/li/cil/oc/common/tileentity/traits/RedstoneAware.scala
@@ -9,6 +9,8 @@ import net.minecraft.util.EnumFacing
 import net.minecraftforge.fml.relauncher.Side
 import net.minecraftforge.fml.relauncher.SideOnly
 
+case class RedstoneChangedEventArgs (side: EnumFacing, oldValue: Int, newValue: Int, color: Int = -1)
+
 trait RedstoneAware extends RotationAware {
   protected[tileentity] val _input: Array[Int] = Array.fill(6)(-1)
 
@@ -39,7 +41,7 @@ trait RedstoneAware extends RotationAware {
     val oldInput = _input(side.ordinal())
     _input(side.ordinal()) = newInput
     if (oldInput >= 0 && newInput != oldInput) {
-      onRedstoneInputChanged(side, oldInput, newInput)
+      onRedstoneInputChanged(RedstoneChangedEventArgs(side, oldInput, newInput))
     }
   }
 
@@ -117,7 +119,7 @@ trait RedstoneAware extends RotationAware {
 
   // ----------------------------------------------------------------------- //
 
-  protected def onRedstoneInputChanged(side: EnumFacing, oldMaxValue: Int, newMaxValue: Int) {}
+  protected def onRedstoneInputChanged(args: RedstoneChangedEventArgs) {}
 
   protected def onRedstoneOutputEnabledChanged() {
     if (getWorld != null) {
diff --git a/src/main/scala/li/cil/oc/server/component/Agent.scala b/src/main/scala/li/cil/oc/server/component/Agent.scala
index 3535e306d..4d14b2d94 100644
--- a/src/main/scala/li/cil/oc/server/component/Agent.scala
+++ b/src/main/scala/li/cil/oc/server/component/Agent.scala
@@ -155,6 +155,17 @@ trait Agent extends traits.WorldControl with traits.InventoryControl with traits
       reason = reason.orElse(Option(what))
     }
 
+    // all side attempts failed - but there could be a partial block that is hard to "see"
+    val (hasBlock, _) = blockContent(facing)
+    if (hasBlock) {
+      val blockPos = position.offset(facing)
+      val player = rotatedPlayer(facing, facing)
+      player.setSneaking(sneaky)
+      val (ok, why) = click(player, blockPos.toBlockPos, facing)
+      player.setSneaking(false)
+      return result(ok, why)
+    }
+
     result(false, reason.orNull)
   }
 
diff --git a/src/main/scala/li/cil/oc/server/component/Geolyzer.scala b/src/main/scala/li/cil/oc/server/component/Geolyzer.scala
index 3d004cf6a..7ab5b08ba 100644
--- a/src/main/scala/li/cil/oc/server/component/Geolyzer.scala
+++ b/src/main/scala/li/cil/oc/server/component/Geolyzer.scala
@@ -19,6 +19,9 @@ import li.cil.oc.api.network.Message
 import li.cil.oc.api.network.Visibility
 import li.cil.oc.api.prefab
 import li.cil.oc.api.prefab.AbstractManagedEnvironment
+import li.cil.oc.common.tileentity.{Robot => EntityRobot, Microcontroller}
+import li.cil.oc.common.entity.{Drone => EntityDrone}
+import li.cil.oc.common.item.TabletWrapper
 import li.cil.oc.util.BlockPosition
 import li.cil.oc.util.DatabaseAccess
 import li.cil.oc.util.ExtendedArguments._
@@ -34,7 +37,7 @@ import scala.collection.convert.WrapAsJava._
 import scala.collection.convert.WrapAsScala._
 import scala.language.existentials
 
-class Geolyzer(val host: EnvironmentHost) extends AbstractManagedEnvironment with DeviceInfo {
+class Geolyzer(val host: EnvironmentHost) extends AbstractManagedEnvironment with traits.WorldControl with DeviceInfo {
   override val node = api.Network.newNode(this, Visibility.Network).
     withComponent("geolyzer").
     withConnector().
@@ -52,6 +55,45 @@ class Geolyzer(val host: EnvironmentHost) extends AbstractManagedEnvironment wit
 
   // ----------------------------------------------------------------------- //
 
+  override protected def checkSideForAction(args: Arguments, n: Int): EnumFacing = {
+    val side = args.checkSideAny(n)
+    val is_uc = host.isInstanceOf[Microcontroller]
+    host match {
+      case robot: EntityRobot => robot.proxy.toGlobal(side)
+      case drone: EntityDrone => drone.toGlobal(side)
+      case uc: Microcontroller => uc.toLocal(side) // not really sure what it is reversed for microcontrollers
+      case tablet: TabletWrapper => tablet.toGlobal(side)
+      case _ => side
+    }
+  }
+
+  override def position: BlockPosition = host match {
+    case robot: EntityRobot => robot.proxy.position
+    case drone: EntityDrone => BlockPosition(drone.getPosition, drone.getEntityWorld)
+    case uc: Microcontroller => uc.position
+    case tablet: TabletWrapper => BlockPosition(tablet.xPosition, tablet.yPosition, tablet.zPosition, tablet.world)
+    case _ => BlockPosition(host)
+  }
+
+  private def canSeeSky: Boolean = {
+    val blockPos = position.offset(EnumFacing.UP)
+    !host.world.provider.isNether && host.world.canBlockSeeSky(blockPos.toBlockPos)
+  }
+
+  @Callback(doc = """function():boolean -- Returns whether there is a clear line of sight to the sky directly above.""")
+  def canSeeSky(computer: Context, args: Arguments): Array[AnyRef] = {
+    result(canSeeSky)
+  }
+
+  @Callback(doc = """function():boolean -- Return whether the sun is currently visible directly above.""")
+  def isSunVisible(computer: Context, args: Arguments): Array[AnyRef] = {
+    val blockPos = BlockPosition(host).offset(EnumFacing.UP)
+    result(
+      host.world.isDaytime &&
+      canSeeSky &&
+      !host.world.getBiome(blockPos.toBlockPos).canRain || (!host.world.isRaining && !host.world.isThundering))
+  }
+
   @Callback(doc = """function(x:number, z:number[, y:number, w:number, d:number, h:number][, ignoreReplaceable:boolean|options:table]):table -- Analyzes the density of the column at the specified relative coordinates.""")
   def scan(computer: Context, args: Arguments): Array[AnyRef] = {
     val (minX, minY, minZ, maxX, maxY, maxZ, optIndex) = getScanArgs(args)
diff --git a/src/main/scala/li/cil/oc/server/component/RedstoneSignaller.scala b/src/main/scala/li/cil/oc/server/component/RedstoneSignaller.scala
index 26cfc2e82..117dab582 100644
--- a/src/main/scala/li/cil/oc/server/component/RedstoneSignaller.scala
+++ b/src/main/scala/li/cil/oc/server/component/RedstoneSignaller.scala
@@ -7,8 +7,11 @@ import li.cil.oc.api.machine.Context
 import li.cil.oc.api.network.Visibility
 import li.cil.oc.api.prefab
 import li.cil.oc.api.prefab.AbstractManagedEnvironment
+import li.cil.oc.common.tileentity.traits.RedstoneChangedEventArgs
 import net.minecraft.nbt.NBTTagCompound
 
+import scala.collection.mutable.ArrayBuffer
+
 trait RedstoneSignaller extends AbstractManagedEnvironment {
   override val node = Network.newNode(this, Visibility.Network).
     withComponent("redstone", Visibility.Neighbors).
@@ -32,9 +35,13 @@ trait RedstoneSignaller extends AbstractManagedEnvironment {
 
   // ----------------------------------------------------------------------- //
 
-  def onRedstoneChanged(side: AnyRef, oldMaxValue: Int, newMaxValue: Int): Unit = {
-    node.sendToReachable("computer.signal", "redstone_changed", side, Int.box(oldMaxValue), Int.box(newMaxValue))
-    if (oldMaxValue < wakeThreshold && newMaxValue >= wakeThreshold) {
+  def onRedstoneChanged(args: RedstoneChangedEventArgs): Unit = {
+    val side: AnyRef = if (args.side == null) "wireless" else Int.box(args.side.ordinal)
+    val flatArgs = ArrayBuffer[Object]("redstone_changed", side, Int.box(args.oldValue), Int.box(args.newValue))
+    if (args.color >= 0)
+      flatArgs += Int.box(args.color)
+    node.sendToReachable("computer.signal", flatArgs: _*)
+    if (args.oldValue < wakeThreshold && args.newValue >= wakeThreshold) {
       if (wakeNeighborsOnly)
         node.sendToNeighbors("computer.start")
       else
diff --git a/src/main/scala/li/cil/oc/server/component/RedstoneVanilla.scala b/src/main/scala/li/cil/oc/server/component/RedstoneVanilla.scala
index f4c08e169..0c3be8047 100644
--- a/src/main/scala/li/cil/oc/server/component/RedstoneVanilla.scala
+++ b/src/main/scala/li/cil/oc/server/component/RedstoneVanilla.scala
@@ -12,7 +12,7 @@ import li.cil.oc.api.machine.Arguments
 import li.cil.oc.api.machine.Callback
 import li.cil.oc.api.machine.Context
 import li.cil.oc.api.network._
-import li.cil.oc.common.tileentity.traits.RedstoneAware
+import li.cil.oc.common.tileentity.traits.{RedstoneAware, RedstoneChangedEventArgs}
 import li.cil.oc.util.BlockPosition
 import li.cil.oc.util.ExtendedBlock._
 import li.cil.oc.util.ExtendedWorld._
@@ -79,8 +79,8 @@ trait RedstoneVanilla extends RedstoneSignaller with DeviceInfo {
   override def onMessage(message: Message): Unit = {
     super.onMessage(message)
     if (message.name == "redstone.changed") message.data match {
-      case Array(side: EnumFacing, oldMaxValue: Number, newMaxValue: Number) =>
-        onRedstoneChanged(Int.box(side.ordinal()), oldMaxValue.intValue(), newMaxValue.intValue())
+      case Array(args: RedstoneChangedEventArgs) =>
+        onRedstoneChanged(args)
       case _ =>
     }
   }
diff --git a/src/main/scala/li/cil/oc/server/component/RedstoneWireless.scala b/src/main/scala/li/cil/oc/server/component/RedstoneWireless.scala
new file mode 100644
index 000000000..71d1f24cb
--- /dev/null
+++ b/src/main/scala/li/cil/oc/server/component/RedstoneWireless.scala
@@ -0,0 +1,163 @@
+package li.cil.oc.server.component
+
+import codechicken.lib.vec.Vector3
+import codechicken.wirelessredstone.api.WirelessReceivingDevice
+import codechicken.wirelessredstone.api.WirelessTransmittingDevice
+import li.cil.oc.Constants
+import li.cil.oc.api.driver.DeviceInfo.DeviceAttribute
+import li.cil.oc.api.driver.DeviceInfo.DeviceClass
+import li.cil.oc.Settings
+import li.cil.oc.api.driver.DeviceInfo
+import li.cil.oc.api.network.EnvironmentHost
+import li.cil.oc.api.machine.Arguments
+import li.cil.oc.api.machine.Callback
+import li.cil.oc.api.machine.Context
+import li.cil.oc.api.network._
+import li.cil.oc.common.EventHandler
+import li.cil.oc.common.tileentity.traits.RedstoneChangedEventArgs
+import li.cil.oc.integration.Mods
+import li.cil.oc.integration.util
+import net.minecraft.nbt.NBTTagCompound
+import net.minecraftforge.fml.common.Optional
+
+import scala.collection.convert.WrapAsJava._
+
+@Optional.InterfaceList(Array(
+  new Optional.Interface(iface = "codechicken.wirelessredstone.api.WirelessReceivingDevice", modid = Mods.IDs.WirelessRedstoneCBE),
+  new Optional.Interface(iface = "codechicken.wirelessredstone.api.WirelessTransmittingDevice", modid = Mods.IDs.WirelessRedstoneCBE)
+))
+trait RedstoneWireless extends RedstoneSignaller with WirelessReceivingDevice with WirelessTransmittingDevice with DeviceInfo {
+  def redstone: EnvironmentHost
+
+  var wirelessFrequency = 0
+
+  var wirelessInput = false
+
+  var wirelessOutput = false
+
+  // ----------------------------------------------------------------------- //
+
+  private final lazy val deviceInfo = Map(
+    DeviceAttribute.Class -> DeviceClass.Communication,
+    DeviceAttribute.Description -> "Wireless redstone controller",
+    DeviceAttribute.Vendor -> Constants.DeviceInfo.DefaultVendor,
+    DeviceAttribute.Product -> "Rw400-M",
+    DeviceAttribute.Capacity -> "1",
+    DeviceAttribute.Width -> "1"
+  )
+
+  override def getDeviceInfo: java.util.Map[String, String] = deviceInfo
+
+  // ----------------------------------------------------------------------- //
+
+  @Callback(doc = """function():number -- Get the wireless redstone input.""")
+  def getWirelessInput(context: Context, args: Arguments): Array[AnyRef] = {
+    wirelessInput = util.WirelessRedstone.getInput(this)
+    result(wirelessInput)
+  }
+
+  @Callback(direct = true, doc = """function():boolean -- Get the wireless redstone output.""")
+  def getWirelessOutput(context: Context, args: Arguments): Array[AnyRef] = result(wirelessOutput)
+
+  @Callback(doc = """function(value:boolean):boolean -- Set the wireless redstone output.""")
+  def setWirelessOutput(context: Context, args: Arguments): Array[AnyRef] = {
+    val oldValue = wirelessOutput
+    val newValue = args.checkBoolean(0)
+
+    if (oldValue != newValue) {
+      wirelessOutput = newValue
+
+      util.WirelessRedstone.updateOutput(this)
+
+      if (Settings.get.redstoneDelay > 0)
+        context.pause(Settings.get.redstoneDelay)
+    }
+
+    result(oldValue)
+  }
+
+  @Callback(direct = true, doc = """function():number -- Get the currently set wireless redstone frequency.""")
+  def getWirelessFrequency(context: Context, args: Arguments): Array[AnyRef] = result(wirelessFrequency)
+
+  @Callback(doc = """function(frequency:number):number -- Set the wireless redstone frequency to use.""")
+  def setWirelessFrequency(context: Context, args: Arguments): Array[AnyRef] = {
+    val oldValue = wirelessFrequency
+    val newValue = args.checkInteger(0)
+
+    if (oldValue != newValue) {
+      util.WirelessRedstone.removeReceiver(this)
+      util.WirelessRedstone.removeTransmitter(this)
+
+      wirelessFrequency = newValue
+      wirelessInput = false
+      wirelessOutput = false
+
+      util.WirelessRedstone.addReceiver(this)
+
+      context.pause(0.5)
+    }
+
+    result(oldValue)
+  }
+
+  // ----------------------------------------------------------------------- //
+
+  @Optional.Method(modid = Mods.IDs.WirelessRedstoneCBE)
+  override def updateDevice(frequency: Int, on: Boolean) {
+    if (frequency == wirelessFrequency && on != wirelessInput) {
+      wirelessInput = on
+      onRedstoneChanged(RedstoneChangedEventArgs(null, if (on) 0 else 1, if (on) 1 else 0))
+    }
+  }
+
+  @Optional.Method(modid = Mods.IDs.WirelessRedstoneCBE)
+  override def getTransmitPos = new Vector3(redstone.xPosition, redstone.yPosition, redstone.zPosition)
+
+  @Optional.Method(modid = Mods.IDs.WirelessRedstoneCBE)
+  override def getDimension = redstone.world.provider.getDimension
+
+  @Optional.Method(modid = Mods.IDs.WirelessRedstoneCBE)
+  override def getFreq = wirelessFrequency
+
+  @Optional.Method(modid = Mods.IDs.WirelessRedstoneCBE)
+  override def getAttachedEntity = null
+
+  // ----------------------------------------------------------------------- //
+
+  override def onConnect(node: Node) {
+    super.onConnect(node)
+    if (node == this.node) {
+      EventHandler.scheduleWirelessRedstone(this)
+    }
+  }
+
+  override def onDisconnect(node: Node) {
+    super.onDisconnect(node)
+    if (node == this.node) {
+      util.WirelessRedstone.removeReceiver(this)
+      util.WirelessRedstone.removeTransmitter(this)
+      wirelessOutput = false
+      wirelessFrequency = 0
+    }
+  }
+
+  // ----------------------------------------------------------------------- //
+
+  private final val WirelessFrequencyTag = "wirelessFrequency"
+  private final val WirelessInputTag = "wirelessInput"
+  private final val WirelessOutputTag = "wirelessOutput"
+
+  override def load(nbt: NBTTagCompound) {
+    super.load(nbt)
+    wirelessFrequency = nbt.getInteger(WirelessFrequencyTag)
+    wirelessInput = nbt.getBoolean(WirelessInputTag)
+    wirelessOutput = nbt.getBoolean(WirelessOutputTag)
+  }
+
+  override def save(nbt: NBTTagCompound) {
+    super.save(nbt)
+    nbt.setInteger(WirelessFrequencyTag, wirelessFrequency)
+    nbt.setBoolean(WirelessInputTag, wirelessInput)
+    nbt.setBoolean(WirelessOutputTag, wirelessOutput)
+  }
+}