Using this display module is easy. First, connect it to a power source with a DC voltage of 5V. Make sure the connection is secure to avoid any power - related issues. You can adjust the brightness according to your needs, just choose one of the 8 levels. When using it, keep the operating temperature between -40 ºC and +85 ºC. Don't expose it to temperatures outside the storage range of -55 ºC to +125 ºC for long periods as it may damage the module. For maintenance, keep it clean and dry. If there is dust on the surface, you can gently wipe it with a soft cloth. That's all you need to know to make the most of this great display module.