Growatt 1500-S inverter support

[danielschwab]

I flash a ShineWifi-S stick with the precompiled version of OpenInverterGateway which worked just fine. After connecting the stick via the serial connector to a Growatt 1500-S inverter the webinterface only shows zero values (See log output).

Is the Growatt 1500-S inverter supported?
I found another repository (https://github.com/rixvet/GrowattReader) which supports this inverter and it seems the inverter doesn't use the modbus interface.

Stick type

ShineWifi-S

Which Inverter are you using?

Growatt 1500-S

Log output

.. skipping 693508 bytes of log - no longer in buffer ..
adData() NOT successful
ReadData() NOT successful
ReadData() NOT successful
ReadData() NOT successful
...

[danielschwab]

After I did compile the firmware with protocol v3.05 by my self everything seems to work.

I just had an error (call of overloaded 'String(uint64_t)' is ambiguous) while compiling (PlatformIO in visual studio code).
I changed ShineMqtt,cpp:37 from:
return HOSTNAME + String(id & 0xffffffff);
to:
return HOSTNAME + String((unsigned int)(id & 0xffffffff));

This seems to be an issue with ShineWifiS PlatformIO environment which uses the espressif8266 platform. The code compiles just fine with the nodemcu-32s environment which uses the espressif32 platform.