Firmware Version 1.0

RS485 Modbus Monitor & Logger

A compact standalone Modbus RTU monitor and logger for industrial engineers and automation specialists. Monitor RS485 communications, decode registers and record timestamped traffic directly to a microSD card.

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  • ✔ USB‑C Powered (5 V)
  • ✔ microSD Logging
  • ✔ RS485 / Modbus RTU
  • ✔ Register Database
  • ✔ Message Injection
  • ✔ Battery-backed RTC
  • ✔ Firmware Updates via microSD

Designed and developed in the UK.

Technical Specifications

Hardware

  • RS485 Interface
  • USB‑C Power (5 V)
  • microSD (32 GB max)
  • 128×64 OLED
  • Rotary Encoder
  • Battery-backed RTC

Firmware

  • Modbus RTU
  • Register Database
  • CSV Logging
  • Message Injection
  • Firmware Updates via microSD
  • Timestamped Logging