# Deye Battery Serial Bus: decoding battery CAN frames

> Deye Battery Serial Bus maps CAN frames from a Deye battery system and reads RS485 cell-voltage data. Its frame reference associates identifiers with inverter, battery and BMS fields; a .NET service exposes readings through API endpoints and includes Grafana dashboard definitions.

- Type: Case study
- Targets: Protocol
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-07
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/Psynosaur/Deye_Battery_Serial_BUS>
- Primary source: <https://github.com/Psynosaur/Deye_Battery_Serial_BUS/blob/c9386a76b32420306f6dc4f1af5f62124d960b0a/CAN2JSON/CANInformation/Frame_IDs.md>
- Catalog page: <https://awesomerea.org/resources/deye-battery-serial-bus-case/>
- Record JSON: <https://awesomerea.org/resources/deye-battery-serial-bus-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/deye-battery-serial-bus-case/index.md)

## Requirements & limits

- **Prerequisites:** Access to the Deye battery bus and an InfluxDB instance are described for operation.
- **Limits:** InterCAN message support and detailed RS485 payload documentation remain planned.
- **License:** No licence file in the repository.

## Primary sources

1. <https://github.com/Psynosaur/Deye_Battery_Serial_BUS/blob/c9386a76b32420306f6dc4f1af5f62124d960b0a/CAN2JSON/CANInformation/Frame_IDs.md>
2. <https://github.com/Psynosaur/Deye_Battery_Serial_BUS/blob/c9386a76b32420306f6dc4f1af5f62124d960b0a/README.md>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.