We are designing a Bluetooth controller that will be used to connect to and control a system using a MultiPlus-II inverter and BlueSolar controller. We need to know the protocol that is used over BLE to read the status and control the units. I found the BlueSolar HEX protocol document which should have the required data for the BlueSolar Controller. However, the MultiPlus-II is using the VE.bus smart connect dongle for the BLE interface, and I cannot find any information on the protocol used over BLE, other than the instant readout, which does not work for control. Can anyone direct me to where I can find information on the protocol used to control the MultiPlus-II through the dongle?