What is BSB-LAN?

BSB-LAN is a software/hardware solution for accessing the “Boiler-System-Bus” (BSB), the “Local-Process-Bus (LPB)” and the “Punkt-zu-Punkt-Schnittstelle” (PPS). The BSB-LAN hardware is available for various ESP32-based microcontrollers (ESP32 NodeMCU, Olimex EVB, Olimex POE-ISO) as well as for an Arduino Due with Ethernet shield. It allows accessing the heating systems from Atlantic, Brötje, Elco and many other manufacturers via LAN/WLAN, provided that they use one of the Siemens controllers listed below.
BSB-LAN makes it possible to monitor and control the heating system and log any given values. This project supports almost all parameters available on the heating systems and can be used for in a comprehensive home automation environment.

Optional integration into existing smart home systems such as Home Assistant, ioBroker, openHAB, Node-RED, Homebridge, Jeedom, SmartHomeNG, Volkszähler, FHEM, HomeMatic, Loxone, IP-Symcon or EDOMI is possible via MQTT, JSON or HTTP access. The adapter can also be used as a standalone logger without LAN or Internet connection when using a microSD card.
Temperature and humidity sensors can also be connected and their data can also be logged and analyzed. The option of integrating your own code into the BSB-LAN software also offers a wide range of expansion options.

Where and how do I begin?

• You are an experienced user? Head on to the quickstart or update instructions. Otherwise (or if you run into problems), please read on!
• Is my heating system supported by BSB-LAN? Please go to the list of supported heating systems.
• If you already know that your system is supported, find out more about the BSB-LAN adapter and where to get it.
• If you already have the adapter, you may want to know how to install the adapter.
• If you have installed the adapter, you will need to configure BSB-LAN.
• Once you have everything up and running, find out about how to use BSB-LAN or learn more about the ways to ingetrate BSB-LAN into home automation systems.
• If you want to update BSB-LAN and would like to know what has changed since your last installation, please check the ChangeLog.
• Our wiki pages are continuously growing and provide background knowledge as well as more specialized topics on BSB-LAN and heating systems in general.
• If you run into troubles, have a look at the troubleshooting page.
• And before you ask anyone else any questions, have a look at our Frequently Asked Questions (FAQ) first!
• And last but not least: If you want to know what other users think of BSB-LAN, then have a look at the testimonials.