System Overview

The W-BACnet module require basic components to communicate and set various configurations on the CPU.

Block diagram of a functional system

The UART pins are used to connect BACnet sensors/devices to the module. The SPI and UART management interface provides a means to configure the module. The push button is optional since the SPI/UART management interface provides the same functionality, and in that case, the bootloader/button pin should be pulled high to 3.3V and not be left floating.

External antenna is mandatory and uses an IPEX/u.fl connection that provides the range when communicating with other devices on the network. The module should be powered with 3.3V.