Using this 7 - segment LED display is easy. First, connect it according to the common anode design. You can use the provided datasheet as a guide for wiring. For programming, the Arduino library can be a great help. When it comes to the decimal points, remember only the right - hand one is wired, so use it for your display needs. As for maintenance, keep it in a dry and clean environment. Avoid exposing it to extreme temperatures or physical impacts. If you face any issues, refer back to the datasheet. Enjoy using your 7 - segment LED display!