Using the FireBeetle Prototype Expansion Board is easy. First, connect it to the master board by soldering the VCC, 3.3V, and GND soldering pads. Then, you can start soldering your electronic components onto the 2.54mm solder holes. This board is plug - and - play, so you don't need to worry about complex setup. When handling the board, be gentle as it's small and light. Avoid bending it too much to prevent damage to the solder holes. For maintenance, keep it in a dry and clean place. If it gets dirty, you can use a soft, dry cloth to wipe it. With this board, you can quickly create overlay circuit prototypes for your IoT projects.