Starter Guide

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Lesson 28 DC motor fan
Introduction
In this lesson, let’s make a DC motor fan
Adeept DC motor fan:
Here we use L9110 chip
L9110：
L9110 is a driver chip which is used to control and drive motor. The chip has
two TTL/CMOS compatible input terminals, and possesses the property of
anti-interference: it has high current driving capability, two output terminals
that can directly drive DC motor, each output port can provide 750~800mA
dynamic current, and its peak current can reach 1.5~2.0A; L9110 is widely
applied to various motor drives, such as toy cars, stepper motor, power
switches and other electric circuits.
OA, OB: These are used to connect the DC motor.
VCC: Power supply (+5V)
GND: The cathode of the power supply (Ground).
IA, IB: The input terminal of drive signal.
DC motor：