Redstone Controle w/ monitor

monitor = peripheral.wrap("top")
w,h = monitor.getSize()

function attButton(state)
    monitor.setCursorPos(2,4)
    if state then
        monitor.setBackgroundColor(colors.green)
    else
        monitor.setBackgroundColor(colors.black)
    end
    monitor.write("ON")
    monitor.setCursorPos(6,4)
    if state then
        monitor.setBackgroundColor(colors.black)
    else
        monitor.setBackgroundColor(colors.red)
    end
    monitor.write("OFF")
end

function ini()
    monitor.setBackgroundColor(colors.gray)
    monitor.clear()
    monitor.setCursorPos(3,2)
    monitor.setTextScale(1.5)
    monitor.write("Botâo")
    attButton(false)
end
ini()

while true do
    event, side, xPos, yPos = os.pullEvent("monitor_touch")
    --monitor.clear()
    --info = "x:"..xPos..", y:"..yPos
    --monitor.setCursorPos(w/2-#info/2,h/2)
    --monitor.write(info)
    if yPos == 4 then
        if xPos >= 2 and xPos <= 3 then
            attButton(true)
            redstone.setOutput("right",true)
        end
        if xPos >= 6 and xPos <= 8 then
            attButton(false)
            redstone.setOutput("right",false)
        end
    end
end