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roccotsi2 / esp32-smart-bms-simulation

A simple simulation of the Daly Smart BMS for ESP32 via bluetooth BLE
MIT License
10 stars 2 forks source link

not issue thank you for sharing code. #2

Open m0jek opened 2 years ago

m0jek commented 2 years ago

I live on a boat and have a battery bank of a several Stirling LiFePO4 batteries that include the Daly SmartBMS, but only accessible by Bluetooth. I can use the SmartBMS App, but I need to monitor all the time so I can warn if SOC drops too low etc. Your simulator will hopefully help me test code so I don't have to sit in engine room all the time, while developing monitoring equipment. :-)

roccotsi2 commented 2 years ago

Hi, thanks for your comment. :-)

It is nice to hear that my simulation is useful for someone else. I also do not have access to the "real" BMS, because my colleague has one. So I need a simulation for testing. By the way, you can also connect the SmartBMS app with my simulation (but only few operations are supported, mostly RunInfo as this hold the values that I am interested in).

Do you have the protocol specification for all of the SmartBMS functions?

m0jek commented 2 years ago

Do you have the protocol specification for all of the SmartBMS functions?

I had found some information on the protocol including a link to a data sheet on this forum thread;

https://diysolarforum.com/threads/decoding-the-daly-smartbms-protocol.21898/

Most people seem to be using the serial connectivity however, I have only access to SmartBMS Bluetooth as the LiFePO4 batteries I have, the BMS is built in but can only access using SmartBMS BLE.

Using the mobile phone app is no good as I would like the system to alert me.

roccotsi2 commented 2 years ago

Unfortunately, the protocol mentioned in the link does not match the protocol my SmartBMS is using. I do not know why it is different (maybe a difference between serial and bluetooth connection), but it is different (e.g. the header my SmartBMS is using starts always with "D2 03").

Are you already using my simulation code on a ES32?

m0jek commented 2 years ago

Yes, yours was the only protocol that worked for me too. I'm using your simulation code successfully.

I have been struggling making progress until I found your code by chance.

Will try again to reach out to Daly ... there must be complete information somewhere.

roccotsi2 commented 2 years ago

If you get some official documentation, would be great if you share this with me.

If you need some additional information or function (beside RunInfo), please ask. If I get some time, I will try to analyze and add this.

m0jek commented 2 years ago

If I get something I will defiantly share with you. So far I have just silence ... :(

I hope to do some tests more this weekend and see if I can make some progress.

m0jek commented 2 years ago

I hope to do some tests more this weekend and see if I can make some progress.

No progress yet, missed a weekend ...