Daly BMS to MQQT To Domoticz

Wat we nodig hebben RaspberryPi 3+ of hoger met daarop Domoticz, Node Red en Mosquitto MQQT. alle info hier over ook hier te vinden Domoticz from Zero

Dit project is gebaseerd op een project dat ik online ben tegen gekomen.
Daly to MQTT alle info op onderstaande site . (gelieve dit ook ff eerst doornemen).https://github.com/softwarecrash/Daly2MQTT op deze link vind je alles wat je nodig hebt om je wemos D1 te Flashen met deze firmware.
laatste firmware kan je hier vinden https://github.com/softwarecrash/Daly2MQTT/releases/
https://mqtt-explorer.com/ Zeker ook handig om te installeren

Het aansluitschema !

Via de usb connector van je Bluetooth module die bij je BMS zit gaan we de BMS verbinden met de Wemos.

Via de USB aansluiting op Wemos D1 gaan we deze module voeden.

De proef opstelling !

Setup the Wemos D1.

Set MQTT = "MQTT Json Style " on

and of course setup you MQTT server parameters.

When everything is working the LED of the wemos must flash with one Puls, this tell you all is OK, Wifi, BMS and MQTT

Now time to chech an MQTT exporer to see what this module is sending !

The MQTT data

{"Device":{"Name":"Daly2MQTT","IP":"192.168.1.82","ESP_VCC":3.375,"Wifi_RSSI":-69,"Relais_Active":false,"Relais_Manual":false,"sw_version":"2.14.0","Flash_Size":4194304,"Sketch_Size":456528,"Free_Sketch_Space":3715072},"Pack":{"Voltage":24.7,"Current":0,"Power":0,"SOC":76.9,"Remaining_Ah":46.1,"Remaining_kWh":1.13867,"Cycles":119,"BMS_Temp":8,"Cell_Temp":8,"cell_hVt":2.75,"cell_lVt":1.8,"cell_hVt2":2.66,"cell_lVt2":1.9,"pack_hVt":30.3,"pack_lVt":19.8,"pack_hVt2":28.8,"pack_lVt2":19,"High_CellNr":11,"High_CellV":2.252,"Low_CellNr":6,"Low_CellV":2.244,"Cell_Diff":8,"DischargeFET":true,"ChargeFET":true,"Status":"Stationary","Cells":11,"Heartbeat":127,"Balance_Active":false,"Fail_Codes":""},"CellV":{"CellV_1":2.246,"CellV_2":2.25,"CellV_3":2.25,"CellV_4":2.249,"CellV_5":2.247,"CellV_6":2.244,"CellV_7":2.248,"CellV_8":2.25,"CellV_9":2.25,"CellV_10":2.25,"CellV_11":2.252},"CellTemp":{"Cell_Temp_1":8}}

Now we gonna split this data in Node-Red and than sent is to Domoticz as seperated values !

MQTT input in node red

If we debug this we get the next data.

Now come's the heavy stuff. Filtering the String !

I only want the SOC from my string !

We now gonna filter the string with the "between" Method.

Start search between ["SOC":] and [,]

{"Voltage":24.6,"Current":-4.4,"Power":-108.24,"SOC":75.8,"Remaining_Ah":45.4,"Remaining_kWh":1.11684,"Cycles":119,"BMS_Temp":8,"Cell_Temp":8,"cell_hVt":2.75,"cell_lVt":1.8,"cell_hVt2":2.66,"cell_lVt2":1.9,"pack_hVt":30.3,"pack_lVt":19.8,"pack_hVt2":28.8,"

So now we get as result for this filter just the value of the SOC level.

This is one example for one value now you can do this for all the data you want.

Now we can do what we want with this value, add it to da dashboard from node red or sent it to an IDX in domoticz.

The "SOC" level is sent to IDX358 in Domoticz. First you have to make you Hard-ware and devices in Domoticz.

Data Sent to MQTT

{"Device":{"Name":"Daly2MQTT","IP":"192.168.1.166","ESP_VCC":3.326,"Wifi_RSSI":-59,"Relais_Active":false,"Relais_Manual":false,"sw_version":"2.14.2","Flash_Size":4194304,"Sketch_Size":463264,"Free_Sketch_Space":3706880,"CPU_Frequency":80,"Real_Flash_Size":4194304,"Free_Heap":31376,"HEAP_Fragmentation":2,"Free_BlockSize":31016,"json_memory_usage":1998,"json_capacity":2048,"runtime":59159,"ws_clients":0,"MQTT_Json":true},"Pack":{"Voltage":45.3,"Current":0,"Power":0,"SOC":9.5,"Remaining_Ah":16.1,"Remaining_kWh":0.72933,"Cycles":423,"BMS_Temp":15,"Cell_Temp":15,"cell_hVt":2.72,"cell_lVt":1.91,"cell_hVt2":2.68,"cell_lVt2":1.89,"pack_hVt":60.5,"pack_lVt":46.5,"pack_hVt2":58.2,"pack_lVt2":45,"High_CellNr":7,"High_CellV":2.075,"Low_CellNr":18,"Low_CellV":2.043,"Cell_Diff":32,"DischargeFET":false,"ChargeFET":false,"Status":"Offline","Cells":22,"Heartbeat":88,"Balance_Active":false,"Fail_Codes":"Sum volt low level 2"},"CellV":{"CellV_1":2.059,"CellV_2":2.057,"CellV_3":2.065,"CellV_4":2.059,"CellV_5":2.065,"CellV_6":2.068,"CellV_7":2.075,"CellV_8":2.055,"CellV_9":2.053,"CellV_10":2.057,"CellV_11":2.051,"CellV_12":2.05,"CellV_13":2.065,"CellV_14":2.057,"CellV_15":2.057,"CellV_16":2.047,"CellV_17":2.061,"CellV_18":2.043,"CellV_19":2.057,"CellV_20":2.068,"CellV_21":2.061,"CellV_22":2.071},"CellTemp":{"Cell_Temp_1":15}}

BMS PACk DATA detail

{

"Device": {

"Name": "Daly2MQTT",

"IP": "192.168.1.166",

"ESP_VCC": 3.326,

"Wifi_RSSI": -59,

"Relais_Active": false,

"Relais_Manual": false,

"sw_version": "2.14.2",

"Flash_Size": 4194304,

"Sketch_Size": 463264,

"Free_Sketch_Space": 3706880,

"CPU_Frequency": 80,

"Real_Flash_Size": 4194304,

"Free_Heap": 29432,

"HEAP_Fragmentation": 38,

"Free_BlockSize": 1360,

"json_memory_usage": 1998,

"json_capacity": 2048,

"runtime": 81022,

"ws_clients": 1,

"MQTT_Json": true

"Pack": {

"Voltage": 45.4,

"Current": 0,

"Power": 0,

"SOC": 8.8,

"Remaining_Ah": 14.9,

"Remaining_kWh": 0.67646,

"Cycles": 423,

"BMS_Temp": 15,

"Cell_Temp": 15,

"cell_hVt": 2.72,

"cell_lVt": 1.91,

"cell_hVt2": 2.68,

"cell_lVt2": 1.89,

"pack_hVt": 60.5,

"pack_lVt": 46.5,

"pack_hVt2": 58.2,

"pack_lVt2": 45,

"High_CellNr": 21,

"High_CellV": 2.074,

"Low_CellNr": 18,

"Low_CellV": 2.06,

"Cell_Diff": 14,

"DischargeFET": false,

"ChargeFET": false,

"Status": "Offline",

"Cells": 22,

"Heartbeat": 232,

"Balance_Active": false,

"Fail_Codes": "Sum volt low level 2"

"CellV": {

"CellV_1": 2.065,

"CellV_2": 2.071,

"CellV_3": 2.073,

"CellV_4": 2.065,

"CellV_5": 2.071,

"CellV_6": 2.073,

"CellV_7": 2.073,

"CellV_8": 2.065,

"CellV_9": 2.063,

"CellV_10": 2.065,

"CellV_11": 2.063,

"CellV_12": 2.063,

"CellV_13": 2.073,

"CellV_14": 2.065,

"CellV_15": 2.065,

"CellV_16": 2.061,

"CellV_17": 2.068,

"CellV_18": 2.06,

"CellV_19": 2.063,

"CellV_20": 2.073,

"CellV_21": 2.074,

"CellV_22": 2.068

"CellTemp": {

"Cell_Temp_1": 15

}

Problemen met 1 BMS 8S data valt geregeld weg, zoeken naar een oplossing.

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