About:
- Project for Bachelorthesis ("How can classic remote outlets can be connected to openHAB?")
- Originally supported by UAS Technikum Vienna and 3S-Sedlak
- IDE: PyCharm 2025.1.5
- Tested Python-Version: 3.15
- Adjusted for direct Raspberry Pi 3B+ Docker Deployment
Features:
- CLI for bridging and setting up USB-StringNet-Devices, which are using StringNet-Firmware.
- Translates between StringNet and MQTT
-
- Addition Homie (V4) - Support (backwards-compatible to HomieV3)
- Autostart - useful for long-term application
- Transmission-queues and echo-filtering
Limitations:
- One bridge-instance can handle and connect ONE StringNet-Device
- Doesn't support addressing (compared to firmware)
- Communication is Y-wise, so: MQTT (Generic / Homie) <-> USB
- Config must be done in settings.json (no more GUI), which gets generated at first start during a prompt.
This project builds upon following librarys and therefor special thanks to:
- Pyserial
- (Pygubu (+Designer) from alejandroautalan @ Github)
- Eclipse Paho™ MQTT Python Client from eclipse @ Github
- Homie4 from mjcumming @ Github
Docker-Deployment: See Dockerfile and docker-compose.yaml. Note: Root-issues have not been resolved!
Versions:
- 1.0.0 - 08.2021 - Hardcoded initial version
- 1.1.0 - 09.2021 - Adding UDP-support
- 2.0.0 - 04.2022 - Introducing dynamic objects solution, removing UDP-support, adding GUI
- 2.0.1 - 12.2022 - X-Server-bug workaround, beautify code
- 2.1.0 - 12.2022 - Fixing X-Server-bug by moving busviewer outputs to commandline
- 2.1.1 - 01.2023 - Adjusting discovery intervalls, beautify github
- 2.1.2+3 - 2023 - Outputs beautified
- 2.2.0 - 12.2023 - Libraries updated + correctly handled, README corrected, files moved, GUI updated
- 3.0.0 - 04.2025 - GUI dropped, connection losses handling improved, split to configurable CLI-subprogramms