LoRa 433 MHz Smart Meter Communication Module

• Overview

Standardized replaceable radio communication module for electricity meters, developed for ROTEK. The device provides a LoRa 433 MHz communication channel for smart-meter integration and had to fit the mechanical and electrical constraints defined by the applicable Rosseti technical requirements.

• My contribution

I developed the complete hardware platform, excluding firmware: schematic design, component selection, Altium libraries, PCB layout, mechanical fit, 3D verification and the full production documentation package.

• Engineering highlights

The board integrates an E32 LoRa 433 MHz radio module, MCU/control electronics, multiple power rails, service/debug interfaces and the required meter-side connections within a tightly standardized form factor. The main challenge was fitting the complete electronics into a predefined mechanical envelope while preserving manufacturability, service access and reliable RF operation.

• Result

The finished hardware was delivered to the customer and launched into production.

• Tools / technologies

Altium Designer, LoRa 433 MHz, E32, embedded hardware, compact PCB layout, standardized form factor, manufacturing documentation, DFM.