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ADA P1 Meter – Introduction

The ADA P1 Meter is a Hungarian-developed device that allows real-time monitoring and logging of data from smart electricity meters – with refresh rates as fast as every 10 seconds.
Track your home's energy consumption, feed-in levels, phase-specific info, and over 30 different measurement parameters – easily, quickly, and securely.

ADA P1 Meter

What is the goal of ADA P1 Meter?​

The goal of ADA P1 Meter is to make energy optimization, cost reduction, and smart energy management accessible to everyone. Whether you're using solar panels or just want to monitor your usage, the ADA P1 Meter has you covered.

Key Features​

  • P1 port connection to electricity meters (RJ12)
  • Wi-Fi connectivity with real-time data transmission (every 10 seconds)
  • Web interface with charts and data: http://okosvillanyora.local:8989
  • Home Assistant compatibility (fully local)
  • Data logging to SD card (locally) or remote server (via MQTT)
  • JSON and Telegram data formats for developers
  • Automatic OTA firmware updates

Technical Specifications​

  • Microcontroller: ESP32-WROOM-32
  • Memory: 520 KB SRAM / 4 MB Flash
  • Wi-Fi: IEEE 802.11 b/g/n
  • Protocols: MQTT, HTTP
  • Web interface: http://okosvillanyora.local:8989
  • Data output: JSON, Telegram (detailed API coming soon)

Getting Started​

  1. Connect the device to your electricity meter’s P1 port (RJ12)
  2. Power it using micro-USB (⚠️ do not use P1 and USB power at the same time!)
  3. Connect to the “okosvillanyora.hu” Wi-Fi network (password: 12345678)
  4. The setup page should open automatically, or visit http://192.168.4.1
  5. Enter your own Wi-Fi network name and password
  6. The device will reboot and begin sending data

Available endpoints:

  • Web interface: http://okosvillanyora.local:8989
  • JSON data: http://okosvillanyora.local:8989/json
  • Telegram format: http://okosvillanyora.local:8989/telegram (detailed docs coming soon)

Cloud Service (okosvillanyora.hu)​

The ADA P1 Meter can operate fully locally or connect to the cloud platform at okosvillanyora.hu, offering:

  • Real-time data
  • Per-minute data logging
  • Custom graphs
  • AI support
  • CSV downloads
  • PWA (installable as an app on mobile, tablet, or Windows)

Plans:

  • Free: real-time data only, no logging
  • Monthly: 1600 HUF/month
  • Yearly: 16000 HUF/year (2 months free)

Who is it for?​

ADA P1 Meter is ideal for:

  • Users with solar power systems
  • Anyone who wants to optimize home energy usage
  • People who want to save money and manage energy more consciously
  • Developers who want to integrate with custom systems (JSON, Telegram, MQTT support)

Compatible Meters​

Compatible with the most common smart meters in Hungary, including:

  • Sanxing SX601, SX631
  • Sagemcom MA105, MA304, MA110M, MA309M
  • Holley DDSD285, DTSD545
  • Wasion aMeter100, aMeter300

For Developers (detailed section coming soon)​

  • JSON API: /json
  • Telegram API: /telegram
  • MQTT integration
  • JavaScript rule engine integration (in progress)

Stay tuned! We are constantly updating this documentation with new examples, guides, and tutorials.