Transform your projects with this affordable ESP32 screen!

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Transform your projects with this affordable ESP32 screen!

Table of Contents:

  1. Introduction
  2. The Cheap Yellow Display: Features and Specs 2.1 ESP 32 Microcontroller 2.2 LCD Display with Touchscreen 2.3 USB for Powering and Programming 2.4 Additional Features and Limitations
  3. The Drawback of Poor Software Instructions and Support 3.1 The Need for Improved Documentation 3.2 Introduction to the Cyd GitHub Page
  4. Benefits of the Cyd GitHub Page 4.1 Comprehensive Examples and Projects 4.2 Sharing Solutions and Workarounds 4.3 Collection of 3D Cases, Stands, and Add-ons 4.4 Hardware Mods for Improving the Board
  5. Audience for the Cyd and its GitHub Page 5.1 Beginners in Hardware Projects 5.2 Hobbyists and DIY Enthusiasts 5.3 Project Builders and Showcasing
  6. Showcase of Projects 6.1 DIY Spotify Display 6.2 Formula 1 Notifier 6.3 Nintendo Wii Nunchuk Controlled Tetris 6.4 Blue Eyes No Button 6.5 Collaborative Fluid Simulation Project 6.6 Galago: Classic Arcade Game Emulator
  7. Getting Involved and Joining the Community
  8. Conclusion

The Cheap Yellow Display: A Perfect Solution for Hardware Projects

If you're an enthusiast of hardware projects, then the Cheap Yellow Display (Cyd) should be your top choice. This all-in-one device is equipped with everything you need to bring your ideas to life. Don't let the obscure name fool you; the Cyd offers impressive features at an affordable price. In this article, we will explore the Cyd in detail, highlighting its key components, functionalities, and limitations. We will also delve into the importance of proper software instructions and support, and how the Cyd's GitHub page fills this gap. So, why wait? Let's dive into the world of the Cyd and unlock endless possibilities for your hardware projects.

The Cheap Yellow Display: Features and Specs

1. ESP 32 Microcontroller

At the heart of the Cyd lies the ESP 32 microcontroller, a powerful Arduino-compatible chip that brings Wi-Fi and Bluetooth capabilities to your projects. This robust microcontroller ensures seamless connectivity, allowing you to integrate your hardware projects with other devices effortlessly.

2. LCD Display with Touchscreen

The Cyd boasts a 320x240 resolution LCD display with a touchscreen. Although this may seem average in comparison to TVs and smartphones, within the Arduino community, this resolution is considered impressively high. The touchscreen, though resistive, performs well for larger buttons, making user interaction smooth and intuitive.

3. USB for Powering and Programming

With the inclusion of USB connectivity, the Cyd simplifies the powering and programming process. You no longer need to worry about separate power sources or intricate wiring. This user-friendly feature ensures hassle-free usage and allows you to focus solely on your project.

4. Additional Features and Limitations

Apart from its core components, the Cyd also comes with a range of extras, including an SD card slot, a speaker connector, an RGB LED, and additional break-out pins. However, it's important to note that the Cyd does have its limitations. The touchscreen may not be ideal for extensive typing, and the speaker output quality is subpar. Furthermore, the available GPIO pins for connecting sensors and peripherals are limited. Nevertheless, considering its affordability and bundled features, the Cyd remains an excellent value-for-money option for hardware enthusiasts.

The Drawback of Poor Software Instructions and Support

While the Cyd's hardware specifications are impressive, its software instructions and support are disappointingly lacking. As a user, you may find yourself searching through a single link to a large zip file on an unsecured website—far from an ideal scenario. Fortunately, there is a solution to this problem, and it stems from the open-source community's collaborative spirit.

1. The Need for Improved Documentation

Recognizing the importance of thorough documentation for hardware projects, the creator of the ESP32 Trinity—an open-source ESP32 board—decided to take action. By adopting an existing product like the Cyd, they aimed to build a community that encourages knowledge-sharing, provides ready-to-use code examples, and fosters project collaborations.

2. Introduction to the Cyd GitHub Page

Through the collective efforts of contributors and the guidance of the creator, the Cyd now has its dedicated GitHub page. This page serves as a comprehensive resource hub for all things Cyd-related. It provides newcomers and experienced users with a plethora of examples, tutorials, and projects, ensuring a seamless experience from ideation to execution.

Benefits of the Cyd GitHub Page

The Cyd GitHub page is a treasure trove of valuable resources, catering to individuals at varying levels of expertise and interests. Let's explore some of the key advantages it offers:

1. Comprehensive Examples and Projects

The GitHub page hosts an extensive list of basic examples showcasing the Cyd's different hardware features. It allows users to gain accessibility to a diverse range of functionalities and teaches how to harness the full potential of the device. Moreover, the page features complete projects that leverage the Cyd's capabilities, providing a starting point for users' own customizations.

2. Sharing Solutions and Workarounds

Due to the constraints encountered when working with the Cyd, such as limited GPIO pins, the GitHub page becomes an ideal platform for users to share creative solutions to common problems. Whether it involves using alternative input devices or utilizing specific expansion boards, the community thrives on finding innovative workarounds, which ultimately benefit every Cyd user.

3. Collection of 3D Cases, Stands, and Add-ons

As part of the collaborative effort, various enthusiasts have contributed 3D printable designs for cases, stands, and add-ons compatible with the Cyd. These designs not only enhance the practicality and aesthetics of the device but also provide users with opportunities for customization and personalization.

4. Hardware Mods for Improving the Board

The development of the Cyd goes beyond the initial hardware release. The GitHub page contains valuable information on hardware modifications that can enhance different aspects of the board. Such modifications may include fine-tuning audio output or expanding the available GPIO pins, empowering users to maximize the potential of their Cyd.

Audience for the Cyd and its GitHub Page

The Cyd and its GitHub page offer immense value to a wide range of individuals. Let's take a closer look at the target audience for this remarkable platform:

1. Beginners in Hardware Projects

For those new to the world of hardware projects, the Cyd presents an ideal starting point. Unlike typical projects, which involve wiring and soldering, the Cyd comes pre-assembled, allowing beginners to focus entirely on learning hardware programming. It offers a gentle introduction to the exciting world of building with hardware, paving the way for more complex projects.

2. Hobbyists and DIY Enthusiasts

Even experienced hardware enthusiasts can benefit from the convenience and versatility of the Cyd. It eliminates the need to assemble intricate hardware setups, making it an attractive option for those seeking a simple and time-saving solution. Whether you're prototyping a new idea or experimenting with different concepts, the Cyd provides a reliable foundation for turning your imagination into reality.

3. Project Builders and Showcasing

For individuals interested in building and sharing their projects, the Cyd proves to be more than just a device—it becomes a standardized platform. By directing others to a singular device, project builders can simplify the sharing and replication process, removing the ambiguity of sourcing multiple components. This convenience benefits both the creator and the community, fostering collaboration and inspiring further innovation.

Showcase of Projects

Now, let's explore some impressive projects that have leveraged the capabilities of the Cyd. These projects, ranging from practical to playful, highlight the endless possibilities that this device offers:

1. DIY Spotify Display

The DIY Spotify Display connects to your Spotify account and features a touchscreen interface for controlling your music playback. This project utilizes the Cyd's LCD display and touch capabilities, providing an interactive and visually appealing way to enjoy your favorite tunes.

2. Formula 1 Notifier

Stay up-to-date with Formula 1 race timings using the Cyd's Formula 1 Notifier project. It fetches the session times of upcoming races and displays them in your local time zone. With this project, you can conveniently track race schedules without missing a single lap.

3. Nintendo Wii Nunchuk Controlled Tetris

Enjoy retro gaming with a twist. This project enables you to play Tetris using a Nintendo Wii Nunchuk as a controller. By connecting this input device to the Cyd, you can experience a new level of immersion and nostalgia.

4. Blue Eyes No Button

Sometimes, the simplest projects can bring immense joy. The Blue Eyes No Button uses the Cyd to create a whimsical interactive experience. With just a push of a button, you can generate a random response, adding a touch of magic to your day.

5. Collaborative Fluid Simulation Project

The Cyd GitHub page showcases a remarkable fluid simulation project contributed by a member of the community. This project employs advanced algorithms to create visually stunning simulations, bringing a touch of elegance and beauty to the Cyd's capabilities.

6. Galago: Classic Arcade Game Emulator

Although it requires additional steps for legal reasons, the Cyd can host the Galago project—an emulator for classic arcade games. By following the provided instructions, you can unlock a world of nostalgia and relive the excitement of retro gaming on your Cyd.

Getting Involved and Joining the Community

Are you excited about the possibilities the Cyd and its GitHub page offer? If you're eager to get involved, you're in luck. Joining the discussion on the dedicated Cheap Yellow Display channel on Discord is a great first step. Feel free to ask questions, seek clarifications, or share your own contributions and creations.


In conclusion, the Cheap Yellow Display (Cyd) brings a new level of convenience and affordability to hardware enthusiasts. Its robust features, enhanced by the capabilities of the ESP 32 microcontroller, make it an excellent choice for both beginners and experienced users alike. While it may have its limitations, the Cyd compensates through the collaborative power of its GitHub page. This resource hub provides comprehensive examples, workarounds, and projects, ensuring that one can fully explore and harness the potential of the Cyd. So, go ahead and unleash your creativity with the Cyd—the possibilities are endless.


  1. The Cheap Yellow Display (Cyd) is the go-to device for hardware projects, offering a convenient all-in-one solution at an affordable price.
  2. The Cyd features an ESP 32 microcontroller, an LCD display with touchscreen, and USB connectivity for a seamless user experience.
  3. Poor software instructions and support for the Cyd led to the creation of a dedicated GitHub page to address this issue.
  4. The Cyd GitHub page offers comprehensive examples, sharing solutions, 3D printable designs, hardware mods, and documentation to enhance user experience.
  5. The Cyd and its GitHub page cater to beginners, hobbyists, project builders, and those looking to showcase their creations.
  6. Impressive projects such as DIY Spotify Display, Formula 1 Notifier, Wii Nunchuk Controlled Tetris, and Blue Eyes No Button highlight the Cyd's versatility.
  7. Getting involved in the Cyd community is as easy as joining the dedicated Discord channel and contributing your ideas and creations.


Q: Can I use the Cyd for advanced hardware projects? A: Absolutely! The Cyd is suitable for both beginners and advanced users. Its powerful features and compatibility with the ESP 32 microcontroller allow for a broad range of projects.

Q: Are there any limitations to the Cyd's touchscreen and speaker output? A: While the Cyd's resistive touchscreen is sufficient for most applications, it may not provide the best typing experience. Additionally, the speaker output is of average quality but can be enhanced through hardware modifications.

Q: How can I contribute to the Cyd GitHub page? A: Join the dedicated Cheap Yellow Display channel on Discord to get started. Feel free to ask questions, share your creations, or provide solutions to common challenges faced by Cyd users.

Q: Can I create my own 3D printable designs for the Cyd? A: Absolutely! The Cyd GitHub page encourages contributors to share their 3D printable designs for cases, stands, and add-ons. Let your creativity shine and enhance the Cyd's functionality.

Q: Are there any other similar boards available besides the Cyd? A: There are various boards with similar appearances, but the Cheap Yellow Display specifically refers to the Cyd. However, if there is enough demand, similar pages can be created for other boards with different displays and features.

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