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Voice & audio / Kit / assembly

Bokko: a pocket voice pendant

A custom voice pendant displays replies and agent progress over Bluetooth.

Read the original build See shopping list
Bokko: a pocket voice pendant — build photo from the creator’s source
patiev_blog · build photo

What the hardware does

A battery-powered nRF52840 pendant captures speech and displays responses while a nearby Mac handles its agent connection over Bluetooth.

How the agent helped

The creator credits Codex with the pendant firmware, macOS companion app and agent integration. The showcase describes a working assembled prototype rather than an available retail device.

Before you build

Custom assembled prototype needs an awake nearby Mac. Explicit firmware-authorship evidence qualifies it, not merely its ability to control an agent.

Follow the build

youcanjustbuildthings.openai.chatgpt.site

Original build story

Creator showcase

x.com

Supporting source

Hardware

All hardware
Bokko: a pocket voice pendant — build photo from the creator’s source

Hardware used

nRF52840; 1.47-inch display; PDM microphone; 800 mAh Li-Po

A battery-powered nRF52840 pendant captures speech and displays responses while a nearby Mac handles its agent connection over Bluetooth.

Product link not verified.

patiev_blog · build photo

Shopping list

Save as Markdown

Parts for one build. Reuse equipment you already own. Quantities are planning quantities unless the creator explicitly specifies a count; kit contents are not additional purchases.

Confirm before buying

  • Board, display controller, microphone, button count, charging/protection circuit and mechanical files are not specified sufficiently for safe reproduction.

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

    nRF52840 board

    Pendant controller.

    Only the chip is named; board manufacturer and charging circuit are unknown.

    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

    1.47-inch, 172×320 display

    Character and text output.

    Driver, voltage, interface and exact panel not disclosed.

    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

    PDM microphone

    Voice capture.

    Exact part and breakout are unknown.

    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

    800 mAh Li-Po battery

    Portable power.

    Voltage, connector polarity, protection and charger requirements must be established before buying.

    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. 1Plan / confirm
    Required

    3D-printed case

    Enclosure.

    No complete dimensioned mechanical BOM supplied.

    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. Not statedPlan / confirm
    Required

    Record/navigation buttons

    Physical controls.

    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.

  7. Qty. 1Plan / confirm
    Required

    Mac running Hermes

    Companion application and spoken replies.

    Must stay awake and within Bluetooth range.

    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.

  8. Qty. To confirmPlan / confirm
    Required

    Wiring and power/charging hardware

    Complete the electrical assembly.

    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.

  9. Qty. SetPlan / confirm
    Tool

    Assembly and test tools

    Assemble and check the circuit.

    Soldering iron, solder, wire cutters and multimeter; review the wiring before power-up.

    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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