atomsforagents.
About the directory & our standards

Robots & toys / Multi-device setup

Turn a tabletop into a football pitch

A camera tracks physical markers on a projected football pitch.

Read the original build See shopping list
Turn a tabletop into a football pitch — build photo from the creator’s source
Creator · build photo

What the hardware does

A projector draws the pitch while a webcam tracks a physical marker, translating movement on the tabletop into game input.

How the agent helped

The creator says the application was built and refined with Codex, including mapping the camera's marker positions onto the projected playing surface. Later versions are part of this same project.

Before you build

Requires camera/projector calibration and printed markers. Version 1.3 is the same project and is not counted separately.

Follow the build

youcanjustbuildthings.openai.chatgpt.site

Original build story

Creator showcase

github.com

Supporting source

Hardware

All hardware
Turn a tabletop into a football pitch — build photo from the creator’s source

Hardware used

Windows 11 PC; projector; 1080p webcam; matte board

A projector draws the pitch while a webcam tracks a physical marker, translating movement on the tabletop into game input.

Product link not verified.

Creator · build photo

Shopping list

Save as Markdown

Parts describe the original Football build. Rescan and recalibrate after moving the board, camera or projector; optional later game modes may require a microphone or different input markers.

Confirm before buying

  • Projector SKU, camera SKU and mounting geometry are not specified.

Quantities are for one build. Unless marked source-specified, they are planning quantities; confirm kit contents and the chosen configuration before ordering.

  1. Qty. 1Plan / confirm
    Required

    Windows 11 x64 PC

    Run the projection game.

    Sources & quantity basis

    Creator source. Planning quantity for one build; check the selected configuration.

    No exact purchase link verified; confirm the model and requirements above before ordering.

  2. Qty. 1Plan / confirm
    Required

    Projector

    Extended desktop output.

    Exact model and throw ratio not specified.

    Sources & quantity basis

    Creator source. Planning quantity for one build; check the selected configuration.

    No exact purchase link verified; confirm the model and requirements above before ordering.

  3. Qty. 1Plan / confirm
    Required

    Windows-compatible 1080p webcam

    Track the board and markers.

    Baseline source requires 1080p. A later repository discussion of Facecam 4K is not a universal hardware validation.

    Sources & quantity basis

    Creator source. Planning quantity for one build; check the selected configuration.

    No exact purchase link verified; confirm the model and requirements above before ordering.

  4. Qty. 1Plan / confirm
    Required

    Matte-white presentation board

    Playing surface with visible edges.

    Sources & quantity basis

    Creator source. Planning quantity for one build; check the selected configuration.

    No exact purchase link verified; confirm the model and requirements above before ordering.

  5. Qty. 1 per playerPlan / confirm
    Required

    Printed two-parallel-black-bar marker

    Human player input.

    One or two players in the documented Football setup.

    Sources & quantity basis

    Creator source. Planning quantity for one build; check the selected configuration.

    No exact purchase link verified; confirm the model and requirements above before ordering.

  6. Qty. SetPlan / confirm
    Required

    Video cable / adapter and stable mounts

    Connect projector and aim projector/camera at the same board.

    Use the PC/projector ports and actual room geometry; camera must see the entire board and margin.

    Sources & quantity basis

    Setup requirement — check against your configuration. Planning quantity for one build; check the selected configuration.

    Use existing equipment or match the specification above. No exact purchase link verified.

  7. Qty. 1Plan / confirm
    Required

    Projector power supply

    Power the device.

    Use the projector’s correct supply.

    Sources & quantity basis

    Setup requirement — check against your configuration. Planning quantity for one build; check the selected configuration.

    Use existing equipment or match the specification above. No exact purchase link verified.

Source reviewed, not assembled or hands-on tested. A working product page does not confirm stock, firmware compatibility or a complete build.

All projects

Built something with a coding agent?

Share your hardware project so others can try it.

Submit a project