open door

-- this code will automatically send a redstone signal when a player is nearby
-- useful for auto opening doors when a player is near

local detector = peripheral.find("playerDetector") -- Finds the peripheral if one is connected
if detector == nil then error("playerDetector not found") end

redstone.setOutput("back", true)    -- set door to closed on startup

while true do
if detector.isPlayersInRange(15) == true then
    redstone.setOutput("back", false)

else
redstone.setOutput("back", true)

    end


end