Victron 150 35 MPPT, 100 20 MPPT, 9x405Wp, Pylontech 4,8kWh 48V, HM‐600 - hoylabs/OpenDTU-OnBattery GitHub Wiki

Many thanks to the makers of OpenDTU and especially of OpenDTU on battery!! Great Job!

For those who are still thinking how to build something like this, I will share my setup with you as an idea. To comply with German regulations, the Hoymiles is limited to 600W.

Safety instruction: no liability! Welders also work with DC voltage and weld from 50A upwards! Whoever builds this should understand something about electronics and should know what he/she is doing!

My setup:

1x ESP32 NodeMCU OpenDTU-onBattery with nRF24+ module on my own designed PCB 1x ESP32 NodeMCU with OpenDTU-onBattery for the second MPPT 1x Victron MPPT 150/35 48V 1x Victron 100/20 1x Pylontech US5000 48V 4,8kWh 1x Hoymiles HM-600 1x IR Volkszähler Hichi IoBroker as central home server

The system works with the json from the Hichi, this means I only use the power which I need in the moment and the rest will be stored in the Pylontech.

Here are some pictures of my Installation so far:

Here are some pictures of the PCB Version with Terminals and the schematic.

Here are some pictures of the PCB Version with Plug and Play Connectors and the schematic.

The pin mapping json file for my PCB can be downloaded here.

https://drive.google.com/file/d/1GLrT0aK9K-aRN6jij3oEBK_kOthwY1h1/view?usp=drive_link

And for the S3 Version here:

https://drive.google.com/file/d/1AlcByuxJ6_drpST3FDdZi2S8wGOqDgqE/view?usp=drivesdk

CANH from Pylontech is Pin4 from the RJ45

CANL from Pylontech is Pin5 from the RJ45

GND is connected to the left Pin of the Victron

5V is connected to the right Pin of the Victron

TX is connected to the middle right Pin of the Victron, as following picture shows

Feel free to contact me. https://instagram.com/lukas_prints3d?igshid=MTk0NTkyODZkYg==