ESP32 | Omniksol Solar PV to MQTT Gateway

Last year I have replaced the Soladin 600 inverter for one made by Omniksol. The Omniksol has the option to monitor it using a WiFi module and an online portal made by Omniksol. But if you manage to get a 602 series WiFi module there is the option to read the stats directly from the module on TCP port 8899. In real-time, that is without using the Omniksol online portal.

This works by sending it a magic message likeĀ {0x68, 0x02, 0x40, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x16} but this has to be personalised to the inverters serial number.

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