t.receive

t = turtle
local function scanAirWaves()
    rednet.open("right")
    id, message = rednet.receive()
    print(message)

    if message == "spawn 1 on" then
        redstone.setAnalogOutput("bottom", 15)
    end
    if message == "spawn 1 off" then
        redstone.setAnalogOutput("bottom", 0)
    end
end

while true do
scanAirWaves()
end