ArduTV: An Arduino UNO shield that turns your project into a TV interface

Last update: 07/02/2025
Author Isaac

ardutv

ArduTV is a shield for the Arduino UNO development board , like many others, but it's quite unique. Designed to provide a video output interface for standard televisions, it opens up a range of possibilities for those who want to experiment with graphics and visualization on TV screens, all using Arduino's capabilities.

What is ArduTV?

ArduTV is a shield that mounts directly onto the Arduino UNO and allows it to generate composite video (CVBS) signals, which are compatible with most CRT, LCD, or plasma televisions that have an RCA input. This interface simplifies the process of connecting the Arduino to a television, eliminating the need for additional devices or complex hardware configurations . The shield transforms the Arduino into a device capable of creating 2D graphics, text, animations, and even simple video games , all on a standard television screen.

The video interface is especially useful for those who want to add a visual output to their projects, such as interactive control systems, retro games, or even educational projects where data or graphics are displayed in real time.

ArduTV Shield Specifications

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The ArduTV is not simply a video adapter ; it's a complete hardware solution that leverages Arduino's capabilities to generate graphical signals. Below are some of the key specifications that define this shield:

  • Composite Video Output (CVBS): The ArduTV converts the digital signals generated by the Arduino into analog composite video signals, which can be connected directly to the TV via a standard RCA cable (yellow).
  • Video Resolution: Although not designed to support high resolutions, the ArduTV can output a basic resolution of 128x96 pixels in color. This is adequate for displaying text, simple images, and basic graphics.
  • Arduino UNO Compatibility: This shield is specifically designed for the Arduino UNO model, so it connects directly to its pins without the need for additional cables. In addition, it does not require external power supplies, as it is powered directly from the Arduino itself.
  • Generating Graphics and Text: The ArduTV allows you to create simple 2D graphics and display text on the screen. You can develop basic user interfaces, menus or even simple games with pixelated graphics. The programming It is done using the Arduino programming language, which makes it easy to create visual projects.
  • Black and White and Limited Color Screen: Although the ArduTV can display colour graphics, it is limited to a very small palette, meaning colours must be chosen carefully to fit the available space. This makes projects simpler but also creative as designers must work within the limitations of the screen.
  • Control Interface: In addition to video output, the ArduTV allows interaction via Arduino buttons and digital inputs. This is useful for interactive projects where the user can control the content displayed on the screen, such as in a video game or a data presentation.
  • Libraries and Code Examples: Specific libraries exist to facilitate programming the ArduTV. These libraries include functions that allow drawing pixels, lines, text and shapes, as well as managing input from buttons and sensors, facilitating the creation of visual interfaces.
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ArduTV Applications

ArduTV has great potential in education, entertainment, and device control projects. Some application examples include:

  • Interactive control systems: You can create a system where the user navigates through menus on a TV screen using buttons connected to the Arduino.
  • Retro video games: Gaming enthusiasts can design simple 2D games that play on the TV, evoking the aesthetics of retro consoles.
  • Data Visualization Projects: With the ArduTV, you can display simple graphics or real-time data on a large screen, which is useful for monitoring projects.