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BLE Key Mini

The smallest BLE Key. Plug in your paddle, power it over USB-C.

Works with Longpath →

Works with Frame Storyboard →

BLE Key Mini in its transparent black printed case, the 3.5 mm key jack at the end

BLE Key Mini turns your own straight key or paddle into a Bluetooth key for Longpath. It sits in our small printed case, takes its power from any USB-C charger or power bank, and has no battery to charge or wear out.

  • With XIAO nRF52840

    Assembled, flashed and tested. Ready to use.

    €44Buy

  • Without board

    Case, jack and wiring ready. You add your own Seeed XIAO nRF52840 and flash the open-source firmware.

    €32Buy

  • ESP32-S3, transparent black case

    Assembled, flashed and tested with a XIAO ESP32-S3. Ships right away.

    1 in stock, ready to ship

    €39Buy

  • ESP32-S3, white case

    Assembled, flashed and tested with a XIAO ESP32-S3. Ships right away.

    1 in stock, ready to ship

    €39Buy

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No VAT is charged (small business, § 19 UStG). Shipping is added at checkout.

§ 1

Photos

The other end of the BLE Key Mini in transparent black, with its USB-C port
Fig. 2: The other end of the BLE Key Mini in transparent black, with its USB-C port
BLE Key Mini opened: the Seeed XIAO nRF52840 wired to the key jack
Fig. 3: BLE Key Mini opened: the Seeed XIAO nRF52840 wired to the key jack
The ESP32-S3 BLE Key Mini in transparent black, opened, with the antenna on the lid
Fig. 4: The ESP32-S3 BLE Key Mini in transparent black, opened, with the antenna on the lid
The ESP32-S3 BLE Key Mini in a white case, the key jack at the end
Fig. 5: The ESP32-S3 BLE Key Mini in a white case, the key jack at the end
The white BLE Key Mini from the USB-C end
Fig. 6: The white BLE Key Mini from the USB-C end
The white ESP32-S3 BLE Key Mini opened, with the antenna on the lid
Fig. 7: The white ESP32-S3 BLE Key Mini opened, with the antenna on the lid
BLE Key Mini without board: case, lid and the wired key jack
Fig. 8: BLE Key Mini without board: case, lid and the wired key jack
§ 2

What it does

  1. 01

    Your own key

    Any straight key or iambic paddle with a 3.5 mm stereo plug. Tip is dit, ring is dah, sleeve is ground.

  2. 02

    Made for Longpath

    Streams precisely timed keying over Bluetooth LE to Longpath on iPhone, iPad, Mac and Android. The app makes the sidetone.

  3. 03

    Check before you connect

    The LED lights while you key, so you can test your paddle before Bluetooth is involved.

  4. 04

    Open hardware

    Firmware and case are open source on GitHub. Every key with a board is assembled, flashed and tested before it ships.

§ 3

In the box and shipping

  • BLE Key Mini, assembled, flashed and tested with its nRF52840 board, or without a board, ready for your own

Your Morse key or paddle and a USB-C charger are not included. You need the free Longpath app on iPhone, iPad, Mac or Android; for prompting, the free Frame Storyboard app (1.1.0 or later), on the same devices.

Every item is built to order and ships from Munich, Germany. Shipping follows the address you enter at checkout: €5 to Germany, €12 to Europe, €39 to the rest of the world. The United Kingdom is not served. Orders from outside the EU may be charged import duties and taxes by your country's customs; these are paid by the buyer.

No VAT is charged (small business, § 19 UStG). Shipping is added at checkout.

As a consumer you can withdraw from the purchase within 14 days. See the terms of sale.

§ 4

Other cases

  1. BLE Key CompactRoom for a battery. Key away from the desk, or run it on USB-C.
  2. BLE Key ModularRuns on USB-C. Add the battery tray now or later.