ESP32-Cheap-Yellow-Display
There is an ESP32 with a built in 320 x 240 2.8" LCD display with a touch screen called the "ESP32-2432S028R", since this doesn't roll of the tongue, I propose it should be renamed the "Cheap Yellow Display" or CYD for short. This display is only about $15 delivered so I think it's really good value.
Features
The CYD has the following features:
- ESP32 (With Wifi and Bluetooth)
- 320 x 240 LCD Display (2.8")
- Touch Screen (Resistive)
- USB for powering and programming
- SD Card Slot, LED and some additional pins broken out
Who is it good for?
I think it's useful for the following types of people:
- People just getting started with working hardware - as everything is already connected, there is no soldering or additional components required
- People who are familiar with working with hardware, but are lazy - (like me) Sometimes you just want to build a project without having to assemble any hardware
- People who aren't really looking to learn anything, but just want to build some cool things - More about this later.
What is the purpose of this page?
So this is pretty nice hardware and a cheap price, but the software instructions/support around it is pretty poor. Just a single link to a zip file on a random website.
A couple of years ago I released the ESP32 Trinity, which is an open source ESP32 board for controlling Matrix panels. I think the main benefit people get out of the work I did on the Trinity is not the hardware, but the documentation, example code and ready to go projects.
I'm no longer creating hardware products, but I think it would be interesting if we could create the same kind of community around this display, where people can share examples and projects made for this display.
How do I know if a display is a CYD?
Where to buy?
Buy from wherever works out cheapest for you:
- Aliexpress*
- Aliexpress*
- Aliexpress
- Makerfabs - Seems to come with a 16GB SD card. Makerfabs also stock my ESP32 Trinity (NOTE there will be import due in the EU from makerfabs)
* = Affiliate Link
Getting Started With Your CYD
For details on how to get started with your CYD, please check out the Setup and Configuration page
Code Examples
The Basics
A collection of examples demonstrating how to use the different features of the CYD, this is a good place to get started. Check them out here.
Alternative Display Libraries
The basics examples are based on the TFT_eSPI display library, but the CYD also works with other display libraries too. Here is some example code if you prefer to use an alternative Arduino library. Check them out here.
ESPHome
Some examples for using the CYD in ESPHome. Check them out here.
Additional Info and Links
Discord
Join the CYD discussion on my Discord channel
3DPrinting
Some examples of 3D printed stands and cases. Check them out here.
Pin Information
This page contains information about what pins are used where, and what ones are free to use.
Add-ons
This page contains information about additional hardware add-ons that can add functionality to your CYD
Troubleshooting
This page contains information about how to troubleshoot your CYD device
Hardware Mods
This page contains information about some hardware mods that can be performed on the CYD to improve or change some of its functionality
Media and Video Mentions
This page lists any times the CYD project was mentioned somewhere!
License Info
This project is licensed as MIT as per the license file
The one exception to this is the OriginalDocumentation folder, that I do not have the right to license
Other Languages
Some members of the community have ported some of this information to other languages!
Please note: I can't gaurantee the accuracy of the translation, how up to date they are or the content on them in general.
- French / Française
- German / Deutsch
If you would like to contribure a translation, please name the repo with the language name or code in the repo name and you can link it here.
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