CC:tweaked rednet test

rednet.open("back")
local id
local message
local function pulse(side)
    os.sleep(0.1)
    redstone.setOutput(side, true)
    os.sleep(0.1)
    redstone.setOutput(side, false)
    os.sleep(0.5)
end

while true do
    id, message = rednet.receive()
    if message == "turn" then
        pulse("front")
        os.sleep(5)
        rednet.send(id, "turned")
    end

end