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ESPhome Deye batteries

Prerequisites

  • PCS 500K => ESP32 + CAN Transceiver board TJA1050 or SN65HVD230
  • InterCan 250K => MCP2515

We run two CAN 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

image

Home Assistant has a lot of entities for these 2 batteries

entities

  • 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

Thanks

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Deye battery messages via the PCS and InterCAN bus

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