L9110 fan module example

In this example we connect an Arduino to a L9110 fan module. This is a commonly found, basic low cost module which consists of an L9110 chip and a small motor attached. You need 4 connections between the arduino and the module. VCC, GND , INA and INB.

L9110 fan module

Lets look at how to connect the Arduino to the module

Code

No libraries needed in this example, fairly basic example this one, upload the sketch and the fan will just run

[codesyntax lang=”cpp”]

int INA = 9; 
int INB = 8;

void setup() 
{ 
pinMode(INA,OUTPUT); 
pinMode(INB,OUTPUT); 
}

void loop() 
{ 
digitalWrite(INA,LOW);
digitalWrite(INB,HIGH); 
delay(1000); 
}

[/codesyntax]

Link
L9110 Fan Module for Arduino