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Robots & toys / Device firmware

A pet that lives on a motion-sensitive badge

A standalone badge reacts to tilt, shaking, touch and button presses.

Read the original build See shopping list
A pet that lives on a motion-sensitive badge — build photo from the creator’s source
naveenmanwani17 · build photo

What the hardware does

A flashed M5Stack StopWatch responds to motion, touch and button presses with an animated on-screen companion, without needing a model API at runtime.

How the agent helped

The creator describes Codex as the coding partner for the badge firmware and animation behavior. The physical device's sensors drive the interactions; this is not just a chatbot running on a small screen.

Before you build

Firmware and filesystem flashing required; runs locally without an AI API. TAVI derives from this project and is held rather than double-counted.

Follow the build

youcanjustbuildthings.openai.chatgpt.site

Original build story

Creator showcase

x.com

Supporting source

Hardware

All hardware

Shopping list

Save as Markdown

Display, battery-status hardware, motion sensor and vibration are integrated. Flash both LittleFS assets and firmware. No additional AI service or network connection is required while it runs.

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

    M5Stack StopWatch Dev Kit (ESP32-S3)

    Badge, display, touch, IMU and haptics.

    Sources & quantity basis

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

    View product

    Product page

  2. Qty. 1Plan / confirm
    Required

    USB-C data cable

    Connect to the computer for programming or data.

    A charge-only cable cannot flash firmware. Example requires a USB-A host port. If your computer has only USB-C, use an appropriate USB-C data cable instead. Reuse the device’s included cable where possible; this is not a standalone power-supply recommendation.

    Sources & quantity basis

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

    Example part

    Accessory example: USB-A to USB-C, 1 m, data capable

  3. Qty. 1Plan / confirm
    Tool

    Computer with VS Code and PlatformIO

    Build, configure or flash the software.

    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.

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