Integrate HmIP-FALMOT-C12 (Homeatic) into Home Assistant

I am planing to use the HmIP-FALMOT-C12 from Homeatic.
I do not want to use the Homeatic Bridge.
Did I understand it correctly that I can use the homeatic addon in addition with this usb stick:
HmIP-RFUSB
I am running Home Assistant on my RPi 4 with Conbee.