bbxTron is built to run doors and lockers from power-on: local UI, on-device credentials, mesh and sidecar without a server. bbxGrid adds organizations, analytics and AI later — without rewiring.

Main is the general site board. ETH fits cabled cabinets. DIN covers single-channel power plus metering. LoRa serves remote gates. Sidecar cheaply expands slots next to Main.

One online controller hubs neighbors and sidecars while bbxGrid shows topology and status — a common path for warehouses and utility rooms.