Using this 4-digit 7-segment display is easy. First, connect it to your circuit through the sixteen through - hole pins. The pins are arranged in two rows of eight, so make sure you match them correctly. When powering it on, keep in mind that the LEDs have a forward voltage of 2.1VDC and a max forward current of 20mA. Don't exceed these values to avoid damaging the display. You can use the provided datasheet to understand the pin configuration better and the display example code to start showing your desired digits quickly. Each digit has its own decimal point, and you can control the apostrophe and colon points individually, which is great for creating custom displays. For maintenance, keep it in a dry and clean place. If it gets dirty, you can use a soft, dry cloth to gently wipe it. Also, be careful when handling it to prevent any physical damage to the segments.