ESPHome Configuration for SRNE HF2430U60

This repository contains the ESPHome configuration for integrating the SRNE HF2430U60 solar controller with Home Assistant. It would likely work with the similar variants like the HF2430U60, HF2320U60, etc... The setup uses Modbus communication to retrieve detailed data and control various aspects of the device.

Features

• Modbus Communication: Collect real-time data using the UART interface.
• Comprehensive Sensors: Includes power, current, voltage, temperature, and historical energy statistics.
• Home Assistant Integration: Provides API and web server for seamless integration.
• Custom Controls: Features switches, numbers, and selectors for advanced configuration.

Setup Instructions

Hardware Requirements

1. ESP32 Development Board: Configured for Modbus communication.
2. SRNE HF2430U60 Solar Controller: Ensure Modbus is enabled.
3. Wiring: Connect the ESP32 UART pins to the solar controller:
   • TX → Solar Controller RX
   • RX → Solar Controller TX
   • GND → Solar Controller GND

Software Requirements

1. ESPHome installed.
2. A configured Home Assistant instance.

Configuration Steps

1. Clone this repository or download the SRNE_HF2430U60.yaml file.
2. Adjust the following in the YAML file:
   • wifi.ssid and wifi.password (use secrets.yaml for secure storage).
   • api.encryption.key and ota.password.
3. Compile and upload the configuration to your ESP32 device.

Upload Instructions

1. Use ESPHome Dashboard or CLI:

   esphome run SRNE_HF2430U60.yaml

2. Follow the prompts to upload the firmware.

Key Configuration Highlights

Modbus Setup

• UART:

  uart:
    id: mod_bus
    tx_pin: GPIO1
    rx_pin: GPIO3
    baud_rate: 9600

• Modbus Controller:

  modbus_controller:
    - id: srne1
      address: 0x01
      modbus_id: tdt1_modbus

Sensors

Example sensor configuration for grid voltage:

sensor:
  - platform: modbus_controller
    modbus_controller_id: srne1
    name: "Grid Voltage"
    register_type: holding
    address: 0x0213
    unit_of_measurement: "V"
    accuracy_decimals: 1
    device_class: voltage
    state_class: measurement

Web Server

Provides local access:

web_server:
  port: 80
  auth:
    username: "JohnDoe"
    password: "abc123456"

Known Issues

• Some Modbus registers may return unexpected values.
• Ensure wiring is secure to avoid communication errors.

Future Enhancements

• Add support for additional Modbus registers.
• Improve error handling for invalid data.

License

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

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For detailed documentation, visit the ESPHome Website.