[Modpack Crash issue]

You have 2 items which try to use the same itemids

[Console Error. Is this a problem?]

It seems to be missing the file: mods/ComputerCraft/lua/bios.lua

Did you remove that file?

[Computercraft scripting help (Wireless modems)]

It's term.clear() if I remember correctly

[Computercraft scripting help (Wireless modems)]

You could always make a new program with a convenient name that does this:

rednet.open("yoursidehere")

rednet.broadcast("yourmessagehere")

rednet.close("yoursidehere")

if you want it send on redstone this will help:

rednet.open("yoursidehere")

while !(event=="char" and p1=="q") do

 event,p1=os.pullEvent()

 if event=="redstone" then

 if redstone.getInput("yoursidehere") then

  rednet.broadcast("onmessage")

 else

  rednet.broadcast("offmessage")

 end

 end

end

rednet.close("yoursidehere")

and if you press Q in the bottom program, it'll terminate the program and turn off the modem

[Computercraft scripting help (Wireless modems)]

If I'm right this should work:

rednet.open("left")

while true do

senderID, input = rednet.receive()

if input == "zsakul" then

redstone.output("back", true)

end

end

rednet.receive() doesn't have a required timeout setting, if you don't set it it doesn't have a timeout

And I suggest you put something in your code to turn the redstone off again like:

rednet.open("left")

while true do

senderID, input = rednet.receive()

if input == "zsakul" then

redstone.setOutput("back", true)

sleep(1) --wait one second

redstone.setOutput("back", false)

end

end