L9110 with Arduino Code – Part 1: How to Control DC motor Speed and Direction

In this tutorial I will show you how to use the L9110 motor control board and write simple Arduino code (see code below) to control various types of motors in your own personal projects. The L9110 is a compact and inexpensive H bridge motor control board that easily interfaces with microcontrollers such as the Arduino or Raspberry Pi.

This board can be used to control two small DC motors simultaneously or can be used to control a small stepper motor, such as a NEMA 17. The board operates between 2.5- and 12-volts DC. It is capable of sourcing 800 mA per phase sustained and 1.5 Amps momentarily.

This tutorial is divided into 3 videos. Part 1 covers the speed and direction control of DC motors. Part 2 discusses the control of linear actuators. Part 3 demonstrates how to control the speed and direction of stepper motors. Each video includes step-by-step set-up instructions as well as basic Arduino coding that can be incorporated into your own projects.

The following are affiliate links for products I used in this video. Using these links will not affect the price for your purchase but may result in a small commission for me, allowing me to keep making helpful and entertaining videos.

[SuperOtter]

I had these drivers in my school project without being explained how they work. This video cleared it up so quickly, thank you.

[klausnielsen]

After watching a few of your videos I just want to tell you that you do a super job. Well explained and shown. Pleasant voice and clearly spoken. Thumbs up and thank you.

[superkaboose]

I love how simple you make everything and take your time to explain, thank you!

[explosifiy]

this video was a lifesaver, you would not believe how many of those boards I burnt out (and subsequently burnt myself on)

[perinoveriza]

Very nice explanation 👍👍, i much learn from your video

[Halocn.]

This worked for me, dude thanks for the nice video.

[bigman-adv]

Great video.

I suggest you indent the code to teach students to write proper readable C++ code.

[carlob]

looking forward to using this to control a 3V aquarium water pump to water my plants!

[MucitPilot]

Thanks for the video. I’m using one of these motor driver boards to drive 2 dc gear motors (yellow plastic ones) but the problem is the left motor is always stronger (more torque ) than the right one when using pwm speed control. And even if I change the motors it does not change the left motor stronger situation. Do you have any idea?

[moathnaji]

Hi …I want to control a dc motor making it rotate 10 times forward then pause for 3 seconds and rotate 10 times backward…. this rotation cycle back and forth will be repeated automatically 20 times exactly like the washing machine. What I need to do that?

[Randy]

What's that screaming on background of your video? At Mark 4:48?

[tonyjohnson]

Nice video, but is code published anywhere?

[mahaksharma]

How to use one input and Chang motor rotation ????.one video share with me excellence work

[olimail]

Can i controll Direction and speed on one Motor?

[workyTurky]

Mine overheating, using just 6v. I don't know why tho.

[Snekithi]

your videos are great but its annoying to hear you say, like share subscribe all the time. If you say once people will understand. so pls avoid it in your future videos