# A projector that keeps the cat entertained

A Raspberry Pi streams animated cat entertainment and controls a projector wirelessly.

## Hardware
Raspberry Pi; Samsung Freestyle projector

A Raspberry Pi renders animated scenes and sends them over AirPlay to a Samsung Freestyle projector, turning a wall into an interactive-looking play surface for a cat.

## Shopping list

Creator uses a modified Doubletake Linux AirPlay sender; buying HDMI parts alone does not reproduce the documented wireless setup.

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

### Confirm before buying
- Exact Pi and Freestyle generations, power/storage choices and working streaming build are not published completely.

### 1 × Raspberry Pi
- Requirement: Required
- Quantity basis: Planning quantity for one build; check the selected configuration
- Purpose: Render and stream the scenes.
- Notes: Generation, RAM and storage not disclosed.
- Sourcing: No exact purchase link verified; confirm the model and requirements above before ordering.
- Evidence: Creator source
- Source: https://youcanjustbuildthings.openai.chatgpt.site/projects/submission-b14cc8ab97aab9b9666fb63515262667de44741eb7bc92d54071095aaeafc2b4
- Source: https://x.com/i/status/2109841447767998532

### 1 × Samsung Freestyle projector
- Requirement: Required
- Quantity basis: Planning quantity for one build; check the selected configuration
- Purpose: AirPlay display.
- Notes: Generation and regional model not disclosed.
- Sourcing: No exact purchase link verified; confirm the model and requirements above before ordering.
- Evidence: Creator source
- Source: https://youcanjustbuildthings.openai.chatgpt.site/projects/submission-b14cc8ab97aab9b9666fb63515262667de44741eb7bc92d54071095aaeafc2b4
- Source: https://x.com/i/status/2109841447767998532

### Set × Pi storage and matched power supply
- Requirement: Required
- Quantity basis: Planning quantity for one build; check the selected configuration
- Purpose: Boot and run the chosen Pi.
- Sourcing: Use existing equipment or match the specification above. No exact purchase link verified.
- Evidence: Setup requirement — check against your configuration
- Source: https://youcanjustbuildthings.openai.chatgpt.site/projects/submission-b14cc8ab97aab9b9666fb63515262667de44741eb7bc92d54071095aaeafc2b4
- Source: https://x.com/i/status/2109841447767998532

### 1 × Projector power supply
- Requirement: Required
- Quantity basis: Planning quantity for one build; check the selected configuration
- Purpose: Power the device.
- Notes: Use the projector’s specified adapter.
- Sourcing: Use existing equipment or match the specification above. No exact purchase link verified.
- Evidence: Setup requirement — check against your configuration
- Source: https://youcanjustbuildthings.openai.chatgpt.site/projects/submission-b14cc8ab97aab9b9666fb63515262667de44741eb7bc92d54071095aaeafc2b4
- Source: https://x.com/i/status/2109841447767998532

### Existing × Wi-Fi network
- Requirement: Required
- Quantity basis: Planning quantity for one build; check the selected configuration
- Purpose: AirPlay streaming and controls.
- Sourcing: Use existing equipment or match the specification above. No exact purchase link verified.
- Evidence: Setup requirement — check against your configuration
- Source: https://youcanjustbuildthings.openai.chatgpt.site/projects/submission-b14cc8ab97aab9b9666fb63515262667de44741eb7bc92d54071095aaeafc2b4
- Source: https://x.com/i/status/2109841447767998532

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

## Setup
Multi-device setup

## Coding tool
Codex

## How the agent helped
The creator describes Codex helping adapt the AirPlay sender, bridge the rendering pipeline and implement wireless projector controls. The physical projector is the output, not just a video displayed in a browser.

## Before you build
Requires adapted AirPlay streaming software and compatible projector controls, not just a video playlist.

## Sources
- Original build: https://youcanjustbuildthings.openai.chatgpt.site/projects/submission-b14cc8ab97aab9b9666fb63515262667de44741eb7bc92d54071095aaeafc2b4
- Supporting source: https://x.com/i/status/2109841447767998532

Source reviewed 2026-11-04. Not hands-on tested.