Aurora ESP8266 Project

ESP32 to ESP8266 migrated project for Aurora inverter monitoring.

Configuration in file platformio.ini

• WiFi SSID: MyWifiSSID
• WiFi Password: MySuperPassword
• Inverter IP: 192.168.1.190
• Inverter Port: 1470
• HTTP Server Port: 8100

Compilation and Upload

1. Compile and upload:

   pio run --target upload --upload-port /dev/ttyUSB0

2. Monitor serial output:

   pio device monitor --port /dev/ttyUSB0

Features

• Automatic WiFi connection
• HTTP server with REST API for Aurora inverter
• Support for formats: TXT, JSON, XML
• Health check endpoint
• TCP communication with Aurora inverter
• Complete inverter data monitoring (power, energy, voltages, currents)

API Endpoints

• GET / - Complete inverter status in text format
• GET /health - Health check (inverter reachability)
• GET /json - Complete inverter data in JSON format
• GET /xml - Complete inverter data in XML format

Inverter Data Retrieved

When the inverter is online, the following data is available:

• ST - Inverter status
• CET - Total energy produced
• CED - Daily energy produced
• DSP3 - Current power output
• DSP23 - DC voltage
• DSP25 - DC current
• DSP26 - AC voltage
• DSP27 - AC current
• SN - Serial number
• VR - Firmware version

Hardware

• Board: NodeMCU v2 (ESP8266)
• Port: /dev/ttyUSB0
• Baud Rate: 115200
• Chip: CH340 USB-serial converter

Error Handling

The system gracefully handles inverter communication errors:

• When inverter is offline: Returns "ERROR" status with descriptive message
• When inverter is online: Returns complete data with "OK" status
• Timeout protection prevents server blocking
• Multiple retry attempts with exponential backoff