Ramus Labs Shop
Shop / BLE Key Compact

BLE Key Compact

Battery built in. Key away from the desk, no cable needed.

BLE Key Compact has a rechargeable battery soldered in under the board, so it works without a cable. Longpath shows the battery level, USB-C charges it, and after ten idle minutes it goes to sleep. The first press wakes it up again.

  • With XIAO nRF52840

    Recommended. Runs much longer on one charge and reads the battery level from the board.

    €64Coming soon
  • With XIAO ESP32-S3

    Shorter battery life. The battery level is measured with extra parts on the board.

    €59Coming soon

Ask a question →

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

§ 1

What it does

  1. 01

    No cable

    The built-in battery lets you key from the sofa, the shack or the train. Charge it over USB-C like your phone.

  2. 02

    Battery level in the app

    Longpath shows how full the battery is and whether it is charging.

  3. 03

    Sleeps when idle

    After ten minutes without keying it sleeps. The first press only wakes it, nothing is sent.

  4. 04

    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

In the box and shipping

  • BLE Key Compact with built-in battery, assembled, flashed and tested

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.

Every key is built to order and ships from Munich, Germany. Shipping costs are shown at checkout. 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.

§ 3

Other cases

  1. BLE Key MiniThe smallest BLE Key. Plug in your paddle, power it over USB-C.
  2. BLE Key ModularStart on USB-C, add the battery tray when you want it.