The motor is driven by two L9110S chips, with an operating voltage range of 2.5-12V, 25°C, Vcc=5V. When the two channels work simultaneously, the maximum continuous output current of the channel reaches 1.2A, and the maximum peak output current reaches 2A; the maximum continuous output current of the 2 channels reaches 1A, and the maximum peak output current reaches 3.5A.