• http://www.mikrocontroller.net/topic/218643
• http://ebus.webhop.org/
• http://www.mikrocontroller.net/topic/91164

• https://www.symcon.de/wiki/EBus_Adapter
• https://www.symcon.de/forum/threads/10799-eBus-Adapter-Senden-Empfangen?p=119974#post119974

Vaillant

• http://knx-user-forum.de/knx-eib-forum/6872-vaillant-gas-brennwertkessel-mit-ebus-eib-anbinden-2.html
• http://knx-user-forum.de/wiregate/20249-ebus-usb-plugin-knx-87.html
• http://knx-user-forum.de/wiregate/20249-ebus-usb-plugin-knx-96.html
• https://github.com/mknx/smarthome
• https://github.com/john30/ebusd and https://github.com/john30/ebusd-configuration
• https://github.com/JuMi2006/ebusd

See also Vaillant serial port on boiler information

7-8-9 interface

• http://www.mikrocontroller.net/topic/126250

I think that PWM doesn't apply for my VRT 390 thermometar