Home Motor Projects L9110 fan module example

L9110 fan module example

by shedboy71

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

L9110 fan module

Lets look at how to connect the Arduino to the module

1

Code

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

int INA = 9; 
int INB = 8;
 
void setup() 
{ 
pinMode(INA,OUTPUT); 
pinMode(INB,OUTPUT); 
}
 
void loop() 
{ 
digitalWrite(INA,LOW);
digitalWrite(INB,HIGH); 
delay(1000); 
}

 

Link
L9110 Fan Module for Arduino

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