ESPhome Deye batteries

Prerequisites

• PCS CAN BUS: Baudrate: 500K => ESP32 + CAN Transceiver board TJA1050 or SN65HVD230
• InterCan CAN BUS: Baudrate: 250K => MCP2515 over SPI

We run two CAN LAN cables

• PCS which gives array summary information
  • We use a RJ45 splitter so that the inverter maintains communication with the top computer BMS
• InterCAN which gives more specific information like cell voltages

Home Assistant has a lot of entities for these 2 batteries

• 142 for only pack 1 and 59 for each pack thereafter
• CAN ID: 0x110 was only partially integrated
  • Bytes 0 to 6 were skipped, which is another 56 entities per pack :O

Connection diagrams from esphome.io

check it out on the wiki

Thanks

• Adminius for the work on PCS :)