D2Relay

D2 Relay is a small tool to relay measurements of a Leica DISTO™ D2 device to the console.

© Copyrights 2021-2025 Hartmut Seichter

Installation

Create a venv

[me@machine d2relay]$ python -m venv .venv

Activate the venv:

[me@machine d2relay]$ source .venv/bin/activate

Activate the venv:

(.venv) [me@machine d2relay]$ pip install -r requirements.txt

Check usage ...

(.venv) [me@machine d2relay]$ python -m app --help
usage: d2relay [-h] [--address ADDRESS]

a tool for reading out Leica Disto D2 devices over BLE

options:
 -h, --help         show this help message and exit
 --address ADDRESS  BLE address for Disto D2, default: FD:8B:B0:50:BA:A3

Collaboration

There are many ways to collaborate, please open an issue or a pull request. Some ideas:

• create a proper d2relay module to encapsulate the functionality
• support other Leica BLE devices (or some relabeled Bosch devices)

Screenshot

Todo

Plenty of hints can be found in my notes while reverse engineering my device.

• Infer correct units
• Detect error states such as 255 (too close)
• Make things configurable by using command line parameters
• Interactive Mode: trigger measurements over BT
• Demonstrator with FreeCAD or the like

Copyright & License

d2relay is © 2021-2025 Hartmut Seichter - licenses under the terms MIT licence