radar

radar = peripheral.wrap("right")

eList = radar.getPlayers()

function scan()
  for k,v in pairs(eList) do
    if(v["name"]=="_zanda268_") then
      redstone.setOutput("top", true)
    end
  end
end

function mainLoop()
  while true do
    scan()
    os.sleep(0.5)

    redstone.setOutput("top", false)
  end
end

mainLoop()