- 📖🕓 ≈ 6 min - As announced in the first part, in this second part we will go into the technical implementation of our room climate dashboard based on the B.One Middleware and the interaction of the respective devices, applications and technologies. Here is an overview of the exact content: 1. B.One Middleware as a DatabaseAll LoRaWAN® devices (ZENNER CO 2 indicator & ELSYS ERS Sound) used in connection with the indoor climate dashboard must first be registered in the