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Add encrypted Sungrow Modbus interface

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@tjhowse tjhowse released this 10 Oct 01:02
· 119 commits to master since this release

This release adds support for https://github.com/rpvelloso/Sungrow-Modbus via a top-level variant field in the configuration YAML. This wraps ModbusTcpClient and decrypts the comms between modbus4mqtt and Sungrow inverters running more recent firmware. There is no need to provide an encryption key to decrypt the traffic, this happens automatically.