The fan control module can be used in conjunction with other small modules for interesting applications (electric fans, heat dissipation, propellers) or DIY mini production. It can be switched between high and low levels through the two digital ports of Arduino to achieve forward and reverse rotation of the fan module, without the need for additional motor drive boards. It can be in both horizontal and vertical states. Air cooling is currently the basic heat dissipation method. Whether it is a desktop computer or a laptop, its structure is basically the same: copper tubes, fins, fans, and some high-end heat dissipation modules have uniform heat plates. However, the uniform heat plate is essentially a flattened shaped heat pipe, which can be attributed to the heat pipe; According to the previous understanding, the uniform heat plate and copper tube are equivalent to "logistics", the fins are "salespeople", and the fans are "marketing". They work together to sell (discharge) the product (heat). Typical air-cooled radiator, consisting of a uniform heat plate, copper tube, fins, and fan