Wireless Turtle Reciever

rednet.open("right", 50)  -- Left is the side of the modem and 50 is the channel were using
rednet.broadcast("Im connected")
print("Now running rednet connection")
while true do
    rednet.receive(msg)
    print(msg) -- This will print the message you have send from the pocket computer onto the turtle screen
    if msg == "tunnel" then
        local length = 0
        rednet.broadcast("How long?")
        rednet.receive(length)
        rednet.broadcast "Turtle will return when finished!"
        for length = length,2,-1 do
            turtle.digUp()
            turtle.dig()
            turtle.forward()
        end
        for length = length,2,-1 do
            turtle.turnRight()
            turtle.turnRight()
            turtle.forward()
        end
        turtle.turnRight()
        turtle.turnRight()
    end
end