RF Power Control II

signalStrengthLower = 3
signalStrengthUpper = 15
sleepInterval = 2
signalInputSide = "left"
signalOutputSide = "right"

function getSignalStrength(signalSide)
    local strength = 0
    local event = os.pullEvent("redstone")
    strength = redstone.getAnalogInput(signalSide)
    if strength <= signalStrengthLower then
        redstone.setOutput(signalOutputSide, true)
    elseif strength == signalStrengthUpper then
        redstone.setOutput(signalOutputSide, false)
    else
    end
    print(strength)
end

while true do
    sleep(sleepInterval)
    getSignalStrength(signalInputSide)
end