Thomas Nicholas

Hi Maritz. did you ever manage to get the 5.5Kwh unit to work?

Hi @Sc00bs & @frankthetank Thanks for opening this thread and shedding some light on this. I would like to know if you have managed to solve the issue with reading the RS485 from the sunsynk with the ESP32. I am looking at a similar use case. My friend has started a small solar business where is going to be charging his customers a monthly fee for the solar equipment. What I have done so far is all external to the sunsynk, we have queried the accuracy of the kwh data present on the sunsynk and its accuracy, so I build him a current sensor using 2 x 100 amp CT on the input (eskom power) and the output( out of the inverter) at its working well, we found that the sunsynk is accurate. All of this data is collected using an ESP32 and transmits the data to a Thingsboard dashboard. Now the next thing that we would like to achieve is to turn on and off the power from the solar and the batteries, this is coming into the inverter. The reason is for 'bad payers', if the clients don't pay, we want to limit the inverter only to eskom mains. I was wondering if this can be done by making the inverter a slave and the ESP32 the master and then turning on and off the inputs (solar and battery)? What I am looking to gain from this is, if there is any documentation online about the sunsynk's rs485 transmission data and if you are able to control it, or if it is purely for monitoring and data logging purposes? Looking for any advice / comments questions. Thanks in advance.