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Smart irrigation with solar energy and weather forecasting

Irrigation that decides on its own: weather forecast, photovoltaic surplus and pump control over Modbus TCP, with Telegram notifications.

Runs on: Raspberry Pi (Docker) — Python 3 scripts (Linux PLC).

The application

A farm wanted to irrigate using its photovoltaic installation and avoid wasting water when rain is on the way. A Raspberry Pi with a Docker stack (Node-RED, MySQL, Nginx, Laravel) reads the inverter over SunSpec Modbus TCP, checks the OpenWeather forecast before each cycle (rain or frost → the cycle is cancelled), controls the pump through a Schneider variable frequency drive over Modbus TCP with 4-20 mA pressure feedback, logs alarms in MySQL and allows remote control through a Telegram bot. The plant panel is a full-screen kiosk.

Architecture

• Irrigation scheduler (morning/afternoon) conditioned by OpenWeather
• Solar inverter read over SunSpec Modbus TCP (generation vs consumption)
• Schneider ATV320 drive over Modbus TCP + 4-20 mA pressure on AI3
• Alarms in MySQL queried from a multi-user Laravel frontend
• Telegram bot for notifications and remote control + on-site kiosk

Bill of materials

• Raspberry Pi (Docker) — Industrial Shields controller
• Schneider Altivar 320 drive — irrigation pump
• 4-20 mA pressure transducer — line pressure
• Solenoid valves per sector — water distribution
• SunSpec photovoltaic inverter — already installed on the farm

What is in the pack

• alarm-history-mysql.sql
• altivar320-modbus-tcp-control.py
• docker-compose-irrigation.yml
• fronius-sunspec-modbus-reading.py
• irrigation-weather-openweather-scheduler.js
• kiosk-wayfire-chromium.sh
• telegram-bot-alarms-control.js
• Bill of materials + README