Description

Circuit board for connection to a Daly (or rebranded) BMS for integration into the smart home.

The cable supplied with the BT dongle (micro USB) is simply plugged into the corresponding socket on the circuit board (not on the Wemos). Most BMS also do not require an additional power supply.

The circuit board or the Wemos is already delivered with the current firmware pre-installed.

Features (v3):

• Possibility to connect an external relay (from v1)
• completely galvanically isolated from the BMS when operating with an external power supply (from v2)
• Switch to select the power supply instead of jumper (from v3)
• Integrated wake button on the circuit board (from v3)
• Possibility to connect an external wake button (from v3)

additional features (v4):

• self-resetting fuse (GND loop)
• automatic power switching (when supplied via the Wemos)
• LED display for external Power supply
• LED indicator for active wake from the software

Features:

• Captive portal for WiFi and MQTT configuration
• Configuration in the web interface
• Switching of MOS gates via web interface, MQTT and via web
• Set SOC via MQTT
• Retrieve essential data via web interface
• Get all data like cell voltage and more via MQTT
• classic MQTT data points or JSON string via MQTT
• Retrieve JSON via web at/livejson?
• Firmware update via the web interface
• Wake up or keep awake BMS via MQTT
• Universal switching output (only with external power supply)
• Blink codes for the current status of the ESP
• Homeassistant Discovery
• Password protection (if activated)

Compatible with the following manufacturers:

• Daly (confirmed)
• BullTron Polar series (confirmed)
• Hi-BMS (confirmed)
• XENES (confirmed)
• others using Daly-rebranded BMS (list will be updated as it becomes known)

Danger: older Daly BMS communicate with an older protocol. This is the so-called Sinowealth protocol. This is not compatible with this board or the firmware!

Look at the type designation:

• Devices of the series R16T, R25A, R25T, R32ND, R32S, R32U, R32W function with this board and firmware
• Devices of the series R05A, R05C, R05J, R05ND, R05U, R05W, R10C, R10J, R16J don't workt with this board and firmware
• If you are unsure, please ask in advance Discord channel #pcb after.

Project page: https://github.com/softwarecrash/Daly2MQTT