This project is an electronic system designed for automated irrigation control. It integrates input sensors, logic control, and power output sections to manage valves and environmental readings efficiently. The aim of this project is to have an ehternet controller into my garden. WiFi wasn't available so I decided to redesign it starting from other projects found on the net. The design is based on this dimension because I put everything inside a 4 DIN module box desiged by me and 3D printed. Probably everything can be redesigned on a single board and rebuild with the same effectiveness.
The system is divided into three main sections:
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Input (V2.2)
Handles all digital and analog inputs, including:- Manual lever input switch
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Control (V2.4)
Microcontroller-based logic and connectivity:- ESP32
- WiFi or Ethernet communication
- Firmware updatable
- Temperature sensors pins available (DS18B20)
-
Power (V2.4)
Power switching and protection section:- MOSFETs to drive solenoids
- Surge protection and fuse circuits
- Isolated DC/DC converters
- Power from 24VAC source and 5V power supply, unfortunately the internal power supply seem to be insufficient for power up all boards...
All schematics are included in PDF format:
These documents describe all circuit sections in detail. Each sheet includes reference designators and functional labels.
- Modular design: Input / Control / Power separated
- Easy to scale and adapt to new sensors or actuators
- Built-in protection: ESD, overcurrent, reverse polarity
- Supports manual or fully automatic modes
- Review all schematics to understand pin mapping and power routing.
- Assemble the circuits section by section.
- Flash the firmware to the microcontroller (I used ESPHome for this project).
- Connect sensors and actuators according to the schematics.
A full production package (Gerber files, BOM, 3D renderings) are included.
- Always test with current-limited power supplies during prototyping.
- Use waterproof enclosures if deployed outdoors.
- Input schematic: V2.2 (April 2025)
- Control schematic: V2.4 (April 2025)
- Power schematic: V2.4 (April 2025)
Created with EasyEDA, not sponsorized by...
This project is provided for educational purposes only.
The author(s) of this repository do not take any responsibility for:
- Incorrect use of the design or schematics
- Damage to equipment, persons, or property
- Installation in unsafe or non-compliant environments
Any implementation of this project in real-world systems should be done under the responsibility of a qualified professional, and in compliance with local regulations and safety standards.
By using this material, you acknowledge that it is offered as-is, without warranty of any kind, and you agree to use it at your own risk.