Daly2MQTT board (v5)

Daly2MQTT-Set v5 is end-of-life. However, the bare board remains available for those who want to add their own WeMos.
Successor as a complete device is Daly2MQTT-NG.

Board for connection to a Daly (or rebranded) BMS and 100Balance BMS for integration into the smart home.

The included cable is simply plugged into the corresponding socket (UART, instead of the cable from the BT dongle).

No external power supply is necessary.

Features:

• complete power supply via the BMS, no power supply or anything similar necessary
• Firmware wake function
• Communication lines galvanically isolated from the BMS
• Integrated wake button on the board
• Possibility of connecting an external wake button
• Possibility to connect a relay
• self-resetting fuse (GND loop)
• LED indicator for active wake from the firmware
• Optional connection of external temperature sensors type DS18B20 via 1-wire board

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 (wake up only via external power supply)
• Universal switching output
• 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)
• 100Balance (with corresponding connection cable and firmware)
• others using Daly-rebranded BMS (list will be updated as it becomes known)

Delivery includes a connection cable to the BMS, 30cm long

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

Videos (by release date):