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P1 Modbus Dongle
OverviewP1 Dongle ProP1 Modbus DongleP1 Splitter ProEthernet P1 Dongle Pro+P1 Dongle Pro+Ultra MiniUltraVirtual P1 SetNRG MonitorNRG Monitor - v2Ethernet P1 Dongle ProS0 Dongle - ESPHomeWaterlezer | H2O Dongle - ESPHomeDSMR-APIESPHome
P1 Modbus Dongle
OverviewP1 Dongle ProP1 Modbus DongleP1 Splitter ProEthernet P1 Dongle Pro+P1 Dongle Pro+Ultra MiniUltraVirtual P1 SetNRG MonitorNRG Monitor - v2Ethernet P1 Dongle ProS0 Dongle - ESPHomeWaterlezer | H2O Dongle - ESPHomeDSMR-APIESPHome
  • Introduction
  • QUICK START
    • Installation
    • Registers
      • Eastron SDM630 Emulation
    • Update
  • FAQ
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  • Why we do this?
  • Primary functions
  • Quick start

Introduction

The P1 Modbus Dongle is basically a P1 to Modbus RTU converter.

NextInstallation

Last updated 1 month ago

Why we do this?

Started designing and manufacturing the dongles in 2020. The main reason is an open solution that is affordable without any subscription.

The concept can be summarised in a few words:

  • Privacy first: data always belongs to the user and is not shared

  • Safe design

  • No subscription

  • Accessible: in terms of costs and user experience

  • Open solution

Primary functions

The primary functions of the dongle are:

  • Power supply from the P1 meter (DSMR version 4/5 only)

  • Reading the smart meter (via the p1 connection)

  • Sharing the P1 information via Modbus RTU (RS485)

Quick start

The dongle is ready for use in a few minutes. The steps are:

Installation
Registers