Solar Production Monitoring Script

From OpenDTU - NO MQTT

(v2 is also available, with JSON file for settings)

This repository contains a Python script designed to monitor solar production data from an OpenDTU device and update a Domoticz server with the collected data. Additionally, the script sends daily production reports via Telegram, after all inverters are not producing (at the end of the day).

Prerequisites

Before running the script, ensure you have the following:

• Python 3.x installed
• A DomoticZ instance running
• Some dummy devices Electric (Instant + Counter), set in Return, and Computed (see picture below)
• Required Python packages (requests, logging)

Setup

1. Clone this repository:

   git clone https://github.com/lemassykoi/domoticz-openDTU.git
   cd domoticz-openDTU

2. Install the required Python packages:

   pip install requests

3. Update the script with your device IP addresses and other configuration details:

   • Replace dtu_base_url with the IP address of your OpenDTU device.
   • Replace domoticz_base_url with the IP address of your Domoticz device.
   • Set the TG_TOKEN and TG_CHATID with your Telegram bot token and chat ID respectively.

Script Overview

The script performs the following functions:

• Fetches system info and live data from the OpenDTU device.
• Updates the Domoticz server with the collected solar power data.
• Sends a start and end message for solar production via Telegram.
• Sends a daily production report via Telegram at the specified time.

Key Variables

• dtu_base_url: Base URL for the OpenDTU device.
• domoticz_base_url: Base URL for the Domoticz server.
• sleep_duration: Time between each data update.
• idx_global: Domoticz IDX for global solar data.
• TG_TOKEN, TG_CHATID: Telegram bot token and chat ID for sending messages.
• serial_to_idx: Mapping between inverter serial numbers and their corresponding Domoticz IDX values.

Main Functions

• get_system_info(): Fetches system info from OpenDTU.
• get_live_data(): Fetches global live data from OpenDTU.
• get_inverter_live_data(inverter): Fetches detailed live data for a specific inverter.
• update_domoticz_solar(IDX, POWER, ENERGY): Updates Domoticz with the solar data.
• send_message_by_telegram(MESSAGE, TOKEN, CHATID): Sends a message via Telegram.

Usage

To run the script, simply execute:

python domoticz-openDTU.py

Logging

The script uses Python's logging module to log messages with the following format:

%(asctime)s - %(name)s - %(levelname)s - %(message)s \t (%(filename)s:%(lineno)d)

Logging levels can be adjusted as needed by modifying the logging.basicConfig call.

License

This project is licensed under the MIT License. See the LICENSE file for details.

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Feel free to open an issue if you encounter any problems or have questions. Contributions are welcome!