Mag card reader

local mag_rw = peripheral.find("mag_reader_writer")

print("Please swipe mag card now")

while true do
    local event, track1, track2, track3 = os.pullEvent("mag_swipe")
    if event then
        print(event)
        print(track1)
        print(track2)
        print(track3)
        break
    end
end