Daly2MQTT

Little Program for ESP82XX to get the Daly BMS data to web and MQTT

Features:

captive portal for wifi and MQTT config
config in webinterface
switching MOS gates over webinterface, MQTT and via web at /set?loadstate, set SOC over MQTT
get essential data over webinterface, get all data like cell voltage and more over MQTT
classic MQTT datapoints or Json string over MQTT
get Json over web at /livejson?
firmware update over webinterface
debug log on Wemos USB (use only if you don't supply Wemos from BMS!!!)
wake the BMS over MQTT or keep it awake (not supported on ESP-01s)
universal switching output (only with external power supply, not supported on ESP-01s)
blink codes for the current state of the ESP (not supported on ESP-01s)
Homeassistant Discovery
with Teapod

Main screen:

Settings:

Config:

MQTT Data

How to use:

flash the bin file to an ESP8266 (recommended Wemos D1 Mini) with Tasmotizer or use the Online Flash tool
connect the ESP like the wiring diagram
search for the wifi ap "Daly2MQTT-AP" and connect to it
surf to 192.168.4.1 and set up your wifi and optional MQTT
that's it :)

How-To video by Jarnsen

Video by Der Kanal

External links

Here you can find the communication methods for your BMS

Collection of docs, software and firmware around Daly BMS. Firmware-Updates are at your own risk! NO SUPPORT!

Completely assembled and tested PCB's

You are welcome to get fully stocked and tested PCB's. These are then already loaded with the lastest firmware. The earnings from the PCBs are used for the further development of existing and new projects.

If interested see here

NEW: The new PCB's (v2) are now completely galvanically isolated from the BMS when operating with an external power supply.

Questions?

Join the Discord Channel (German / English)

pljakobs/Daly2MQTT