Introduction: Use Your Phone As a Second Monitor
We have all had an experience with working from home. It gives us the luxury of completing jobs or assignments from the comfort of our own homes. However, we all want to complete these tasks in the most efficient and productive way possible, so that we could spend the rest of our time at home on other things. A perfect solution is to use your phone as a second monitor for your laptop or computer.
A second monitor boosts productivity because it allows us to spend less time switching tabs, checking new messages, or following that awesome new instructable.
This project works for both Android/IOS and Windows/MacOS platforms.
Step 1: What You'll Need
All that you need for this project are:
- Phone or Tablet
- USB Data Cable
- Phone stand/mount
- Computer or Laptop
Make sure that your phone, computer, and cable are compatible with each other.
Step 2: Mount Your Phone
You should place your phone where it will be easy and convenient to look at. This will reduce eye movement and strain when looking between two monitors.
Here's the phone stand that I designed in Fusion 360:
I 3D Printed this stand using my Ender 3 Pro with some red and black filament. Stick the two pieces together with some super glue to prevent the phone from tipping over. If you don't have access to a 3D printer, there are plenty of cheap phone holders that could be bought online or at various stores. Also, there are plenty of other instructables that show you how to make a phone holder.
Here are the .stl files:
Step 3: Download and Install the Software
The magic that allows you to turn your phone into a display is a software called Splashtop Wired XDisplay. This program will make your computer think that a new display is connected to your computer, even though it's only your phone.
You can download the software on their website: splashtop.com/wiredxdisplay
Download and install the software on your phone and on your computer. Be sure that you install the "Virtual Display Driver" on your computer. You can do this by navigating to Advanced > Virtual Display > Install. Without this driver, your phone will only be able to mirror what is displayed on your primary monitor.
Step 4: Connect Your Phone
Open up the software on both the phone and computer. Once everything is ready, plug in your phone to the computer using the data cable. The Wired XDisplay should automatically sync up your phone and computer.
If the phone is mirroring your primary display, go to Settings > System > Display > Multiple Displays on your computer and select "Extend these Displays". If it still isn't working, make sure that you installed the software correctly and connected the cable firmly.
Step 5: Work Work Work!
You're all set! You can now use your phone as a second monitor for your computer or laptop. You can use it to view references, control your playlist, facilitate online classes, and many more!
I hope you liked this Instructable! Check out my other Instructables here.
If you have any problems or suggestions, leave a comment down below. Good luck on all of your work!

Participated in the
Work From Home Speed Challenge
9 Comments
8 months ago
Hallo, ich habe Ihren Beitrag jetzt erst gefunden.
Meine Frage dazu...
Geht das auch mit zwei Handys.
Man findet ja nur diese mirror Apps. Das ist aber nicht das was ich brauche. Ich möchte ein zweites Handy als Monitor nutzen ind nicht das eine Handy auf das andere spiegeln
2 years ago
Hi, does it lag? what if I use a 3 m cable? could there be lag? thanks and good post
Reply 2 years ago
It lags just a small bit. A long cable wouldn't affect it's performance though.
3 years ago
nifty idea! would this work with a tablet too? I have a Fire Tablet gathering dust :)
does it work for both iOS and Android?
Reply 3 years ago
A tablet is a fantastic idea! It should work as long as it's an Android or IOS device.
3 years ago
Can you please give some examples on what can you do with this? or what you usually use this small monitor with?
Reply 3 years ago
Personally, I use this monitor on a lot of stuff. I could display some references while making a document, control my music playlist, use the effects panel while editing a video, or even have my video game's minimap on that small screen. I also place it in a spot that's closer to my face, so that it's a bit larger than if it was side by side with my main display.
Reply 3 years ago
oh <3
3 years ago
Looks good. Useful in gaming.