Closed SamLue closed 3 years ago
SamLue
commented
3 years ago Here further information from my serial USB cable. samuel@nb-lubuntu:~$ ls -la /dev/serial/by-id/ insgesamt 0 drwxr-xr-x 2 root root 60 Mai 18 14:11 . drwxr-xr-x 4 root root 80 Mai 18 14:11 .. lrwxrwxrwx 1 root root 13 Mai 18 14:11 usb-1a86_USB_Serial-if00-port0 -> ../../ttyUSB0
maybe interesting?
dreadnought
commented
3 years ago I'm using the 14S model from here: https://aliexpress.com/item/1005002205134036.html
It has a RS485 and UART port and has the USB adapter is connected to RS485, the Bluetooth module to UART. Both can be connected and used in parallel.
Please run the CLI command again with --verbose at the end. Then it will print out all messages send to and received from the BMS. The output could help me understand where the problem is.
I've also added the new parameter --uart now, which you could give a try. For that you have to pull the latest code from Github and run ./bin/daly-bms-cli in it.
SamLue
commented
3 years ago Supposedly the RS485 is not present on the 4s 100A. There is a connector to the right of UART, but it is not labeled. Therefore you should use the monitor port with the right USB-Cable for the computer.
Here the output with --verbose Switch samuel@nb-lubuntu:~/daly$ daly-bms-cli -d /dev/ttyUSB0 --soc --verbose DEBUG [daly_bms.py:93] -- 94 ------------------------ DEBUG [daly_bms.py:65] w a5409408000000000000000081 DEBUG [daly_bms.py:110] 0 empty response for command 94 DEBUG [daly_bms.py:83] 1. try failed, retrying... DEBUG [daly_bms.py:93] -- 94 ------------------------ DEBUG [daly_bms.py:65] w a5409408000000000000000081 DEBUG [daly_bms.py:110] 0 empty response for command 94 DEBUG [daly_bms.py:83] 2. try failed, retrying... DEBUG [daly_bms.py:93] -- 94 ------------------------ DEBUG [daly_bms.py:65] w a5409408000000000000000081 DEBUG [daly_bms.py:110] 0 empty response for command 94 DEBUG [daly_bms.py:83] 3. try failed, retrying... DEBUG [daly_bms.py:93] -- 94 ------------------------ DEBUG [daly_bms.py:65] w a5409408000000000000000081 DEBUG [daly_bms.py:110] 0 empty response for command 94 DEBUG [daly_bms.py:83] 4. try failed, retrying... DEBUG [daly_bms.py:93] -- 94 ------------------------ DEBUG [daly_bms.py:65] w a5409408000000000000000081 DEBUG [daly_bms.py:110] 0 empty response for command 94 DEBUG [daly_bms.py:83] 5. try failed, retrying... ERROR [daly_bms.py:88] 94 failed after 5 tries DEBUG [daly_bms.py:93] -- 90 ------------------------ DEBUG [daly_bms.py:65] w a540900800000000000000007d DEBUG [daly_bms.py:110] 0 empty response for command 90 DEBUG [daly_bms.py:83] 1. try failed, retrying... DEBUG [daly_bms.py:93] -- 90 ------------------------ DEBUG [daly_bms.py:65] w a540900800000000000000007d DEBUG [daly_bms.py:110] 0 empty response for command 90 DEBUG [daly_bms.py:83] 2. try failed, retrying... DEBUG [daly_bms.py:93] -- 90 ------------------------ DEBUG [daly_bms.py:65] w a540900800000000000000007d DEBUG [daly_bms.py:110] 0 empty response for command 90 DEBUG [daly_bms.py:83] 3. try failed, retrying... DEBUG [daly_bms.py:93] -- 90 ------------------------ DEBUG [daly_bms.py:65] w a540900800000000000000007d DEBUG [daly_bms.py:110] 0 empty response for command 90 DEBUG [daly_bms.py:83] 4. try failed, retrying... DEBUG [daly_bms.py:93] -- 90 ------------------------ DEBUG [daly_bms.py:65] w a540900800000000000000007d DEBUG [daly_bms.py:110] 0 empty response for command 90 DEBUG [daly_bms.py:83] 5. try failed, retrying... ERROR [daly_bms.py:88] 90 failed after 5 tries
And the same with the latest code from github an --uart Switch.
dreadnought
commented
3 years ago The output shows that the BMS doesn't answer at all.
You've mentioned that you've successfully connected to the BMS from Windows. Did you try it with the the Daly BMS Monitor software? https://www.dalyelec.cn/newsshow.php?cid=25&id=77&lang=1
They list two different software packages there, for my BMS I took the BmsMonitor. Would it be the same for your device model?
In the beginning I just run that software and captured the commands that it sends via a serial monitor software. So when you can also connect with the Daly software, you could also have a look at the data that gets send and received via the serial interface. I've used the trial of Serial Port Monitor for that: https://www.hhdsoftware.com/serial-port-monitor
SamLue
commented
3 years ago OK, I checked the BMS Monitor. But this Software doesn't work with my BMS on the Monitor Port.
The 2. Software of your Link (BMSTool - Sinowealth) is working with my BMS on this Port.
I captured the data with your serial port monitor and choosed "Text Exporter" as processing. So here are the first 1000 Lines (maybe 2-3 Seconds of scanning all bms data by the sinowealth software) https://pastebin.com/KxRq07iq
What do you think. Should I try to order a cable for UART Port? But then I can't use the Bluetooth-App parallel.
dreadnought
commented
3 years ago Your captured data was helpful, it shows me that this BMS uses completely different different protocol. So it doesn't matter which cable you're using.
The file is quite long, but the interesting lines are starting with a tab character (grep $'^\t' KxRq07iq.txt on Linux).
First the software sends a command twice, e.g. 0a0102 for the first cell voltage, and then it receives a response like 0d03fd, which I would interpret as 3.331V. Another example would be the total voltage, where 0a0b02 is the command and 340d0f (13.325V) the answer. Summing the cell voltages up matches the total voltage quite close.
The command structure is not hard to understand:
0a.01 to 18 (hex), which means that there are 24 different commands and they are most likely order the way that they are ordered in the Windows app.02.The responses have 3 or 5 bytes, the first 2 or 4 bytes are the value, followed by 1 byte that I can't interpret. Maybe it's some kind of checksum or could tell us from which command this response is.
Parsing voltages with Python can look like this:
>>> import struct
>>> struct.unpack('>H x', b"\x0d\x03\xfd")[0] / 1000
3.331You don't have to understand everything above, I just needed a place to document what I found out. I don't know which values are actually interesting for you. Just getting the voltages seems to be easy, assuming that my results are correct so far.
The next part would be to go over all values in the Windows software, checking them one by one and creating a list of the name & value show in the GUI and the command & response in hex format from serial port monitor. The "Packet View" works better than text export in this case, because you can see the data in real-time and press DEL to clear the screen, before going to the next command.
With that information I should be able to implement most of it, even when I don't have such a device myself. But I can't promise anything of course.
scoleri
commented
3 years ago dreadnought
commented
3 years ago I've pushed some code for reading the voltage values to a branch called sinowealth, please give it a try and post the output here.
You can get and run it like this:
git pull
git checkout sinowealth
python3 setup.py install
daly-bms-cli -d /dev/ttyUSB0 --verbose --sinowealth --soc
daly-bms-cli -d /dev/ttyUSB0 --verbose --sinowealth --cell-voltagesIt's not finished yet, but it should show if the BMS responds.
Does this document help?
Unfortunately not, it describes the protocol that is already implemented here. It's not about the protocol that the Sinowealth app uses.
scoleri
commented
3 years ago Looks better AWESOME - thanks!
root@battery:~# daly-bms-cli -d /dev/ttyUSB0 --verbose --sinowealth --soc
DEBUG [daly_sinowealth.py:38] message: bytearray(b'\n\r\x02'), 0a0d02
DEBUG [daly_sinowealth.py:59] 0aab2f 3
{
"total_voltage": 2.731
}
root@battery:~# daly-bms-cli -d /dev/ttyUSB0 --verbose --sinowealth --cell-voltages
DEBUG [daly_sinowealth.py:38] message: bytearray(b'\n\x01\x02'), 0a0102
DEBUG [daly_sinowealth.py:59] 0cfd1c 3
DEBUG [daly_sinowealth.py:38] message: bytearray(b'\n\x02\x02'), 0a0202
DEBUG [daly_sinowealth.py:59] 0cfe2f 3
DEBUG [daly_sinowealth.py:38] message: bytearray(b'\n\x03\x02'), 0a0302
DEBUG [daly_sinowealth.py:59] 0cfd30 3
DEBUG [daly_sinowealth.py:38] message: bytearray(b'\n\x04\x02'), 0a0402
DEBUG [daly_sinowealth.py:59] 0cf663 3
DEBUG [daly_sinowealth.py:38] message: bytearray(b'\n\x05\x02'), 0a0502
DEBUG [daly_sinowealth.py:59] 000045 3
{
"1": 3.325,
"2": 3.326,
"3": 3.325,
"4": 3.318
}Thanks for testing it, great that it is already returning data. total_voltage wasn't correct, but should be now. Please update git, run it again, check if the values are equal to you see in the GUI. Right now I'm just dividing everything by 1000, I don't know if that works for all fields.
The --temperatures should also give a result now:
daly-bms-cli -d /dev/ttyUSB0 --verbose --sinowealth --temperatures15:09 # daly-bms-cli -d /dev/ttyUSB0 --sinowealth --temperatures
{
"external1": 2.972,
"external2": 2.731,
"ic1": 2.99,
"ic2": 0.071
}SOC doesn't work:
Traceback (most recent call last):
File "/usr/local/bin/daly-bms-cli", line 4, in <module>
__import__('pkg_resources').run_script('dalybms==0.1.0', 'daly-bms-cli')
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 658, in run_script
self.require(requires)[0].run_script(script_name, ns)
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 1445, in run_script
exec(script_code, namespace, namespace)
File "/usr/local/lib/python3.6/dist-packages/dalybms-0.1.0-py3.6.egg/EGG-INFO/scripts/daly-bms-cli", line 62, in <module>
File "/usr/local/lib/python3.6/dist-packages/dalybms-0.1.0-py3.6.egg/dalybms/daly_sinowealth.py", line 125, in get_soc
File "/usr/local/lib/python3.6/dist-packages/dalybms-0.1.0-py3.6.egg/dalybms/daly_sinowealth.py", line 112, in _read_bulk
File "/usr/local/lib/python3.6/dist-packages/dalybms-0.1.0-py3.6.egg/dalybms/daly_sinowealth.py", line 90, in _read
struct.error: unpack requires a buffer of 5 bytesCell Voltages:
15:11 # daly-bms-cli -d /dev/ttyUSB0 --sinowealth --cell-voltages
{
"1": 3.693,
"2": 3.69,
"3": 3.69,
"4": 3.485
}I guess your BMS is not 2°C cold, so let's divide temperatures only by 100, which results in 29°C. --soc should also be fixed now.
SamLue
commented
3 years ago Yeah, that sounds great!
But the new Branch doesn't work on my system. Do you have an idea what the problem could be? samuel@nb-lubuntu:~/daly/python-daly-bms$ daly-bms-cli -d /dev/ttyUSB0 --verbose --sinowealth --cell-voltages usage: daly-bms-cli [-h] -d DEVICE [--status] [--soc] [--mosfet] [--cell-voltages] [--temperatures] [--balancing] [--errors] [--all] [--check] [--retry RETRY] [--verbose] daly-bms-cli: error: unrecognized arguments: --sinowealth
samuel@nb-lubuntu:~/daly/python-daly-bms$ git status Auf Branch sinowealth Ihr Branch ist auf demselben Stand wie 'origin/sinowealth'.
nichts zu committen, Arbeitsverzeichnis unverändert samuel@nb-lubuntu:~/daly/python-daly-bms$
Do you need more Information from the serial port monitor with the "Packet View"-Mode? A few days are still left in the eval. (until 03.06.)
dreadnought
commented
3 years ago daly-bms-cli: error: unrecognized arguments: --sinowealth
That shows that the most recent version is not installed. Please run python3 setup.py install again and retry.
Do you need more Information from the serial port monitor with the "Packet View"-Mode?
Not for know, since the script can show the response from the BMS already, I can use the output from it. But we have to see if the output look similar to what the GUI shows. So please let me know if something doesn't look right.
SamLue
commented
3 years ago I already have run python3 setup.py install
samuel@nb-lubuntu:~/daly/python-daly-bms$ sudo python3 setup.py install /usr/lib/python3.6/distutils/dist.py:261: UserWarning: Unknown distribution option: 'long_description_content_type' warnings.warn(msg) running install running bdist_egg running egg_info writing dalybms.egg-info/PKG-INFO writing dependency_links to dalybms.egg-info/dependency_links.txt writing top-level names to dalybms.egg-info/top_level.txt reading manifest file 'dalybms.egg-info/SOURCES.txt' writing manifest file 'dalybms.egg-info/SOURCES.txt' installing library code to build/bdist.linux-i686/egg running install_lib running build_py creating build/bdist.linux-i686/egg creating build/bdist.linux-i686/egg/dalybms copying build/lib/dalybms/init.py -> build/bdist.linux-i686/egg/dalybms copying build/lib/dalybms/daly_bms_bluetooth.py -> build/bdist.linux-i686/egg/dalybms copying build/lib/dalybms/daly_bms.py -> build/bdist.linux-i686/egg/dalybms copying build/lib/dalybms/error_codes.py -> build/bdist.linux-i686/egg/dalybms copying build/lib/dalybms/daly_sinowealth.py -> build/bdist.linux-i686/egg/dalybms byte-compiling build/bdist.linux-i686/egg/dalybms/init.py to init.cpython-36.pyc byte-compiling build/bdist.linux-i686/egg/dalybms/daly_bms_bluetooth.py to daly_bms_bluetooth.cpython-36.pyc byte-compiling build/bdist.linux-i686/egg/dalybms/daly_bms.py to daly_bms.cpython-36.pyc byte-compiling build/bdist.linux-i686/egg/dalybms/error_codes.py to error_codes.cpython-36.pyc byte-compiling build/bdist.linux-i686/egg/dalybms/daly_sinowealth.py to daly_sinowealth.cpython-36.pyc creating build/bdist.linux-i686/egg/EGG-INFO installing scripts to build/bdist.linux-i686/egg/EGG-INFO/scripts running install_scripts running build_scripts creating build/bdist.linux-i686/egg/EGG-INFO/scripts copying build/scripts-3.6/daly-bms-cli -> build/bdist.linux-i686/egg/EGG-INFO/scripts changing mode of build/bdist.linux-i686/egg/EGG-INFO/scripts/daly-bms-cli to 755 copying dalybms.egg-info/PKG-INFO -> build/bdist.linux-i686/egg/EGG-INFO copying dalybms.egg-info/SOURCES.txt -> build/bdist.linux-i686/egg/EGG-INFO copying dalybms.egg-info/dependency_links.txt -> build/bdist.linux-i686/egg/EGG-INFO copying dalybms.egg-info/top_level.txt -> build/bdist.linux-i686/egg/EGG-INFO zip_safe flag not set; analyzing archive contents... creating 'dist/dalybms-0.1.0-py3.6.egg' and adding 'build/bdist.linux-i686/egg' to it removing 'build/bdist.linux-i686/egg' (and everything under it) Processing dalybms-0.1.0-py3.6.egg Removing /usr/local/lib/python3.6/dist-packages/dalybms-0.1.0-py3.6.egg Copying dalybms-0.1.0-py3.6.egg to /usr/local/lib/python3.6/dist-packages dalybms 0.1.0 is already the active version in easy-install.pth Installing daly-bms-cli script to /usr/local/bin
Installed /usr/local/lib/python3.6/dist-packages/dalybms-0.1.0-py3.6.egg Processing dependencies for dalybms==0.1.0 Finished processing dependencies for dalybms==0.1.0
But still: samuel@nb-lubuntu:~/daly/python-daly-bms$ daly-bms-cli -d /dev/ttyUSB0 --verbose --sinowealth --cell-voltages usage: daly-bms-cli [-h] -d DEVICE [--status] [--soc] [--mosfet] [--cell-voltages] [--temperatures] [--balancing] [--errors] [--all] [--check] [--retry RETRY] [--verbose] daly-bms-cli: error: unrecognized arguments: --sinowealth
scoleri
commented
3 years ago Yes the numbers match. I'd like to see amps if you can figure that out. Thanks a ton.
✔ ~/python-daly-bms [sinowealth|⚑ 1]
20:55 # daly-bms-cli -d /dev/ttyUSB0 --sinowealth --soc --cell-voltages --temperatures
{
"total_voltage": 13.623,
"soc_percent": 97.0
}
{
"1": 3.426,
"2": 3.429,
"3": 3.43,
"4": 3.34
}
{
"external1": 30.0,
"external2": 27.31,
"ic1": 30.17,
"ic2": 0.71
}I already have run python3 setup.py install
samuel@nb-lubuntu:~/daly/python-daly-bms$ sudo python3 setup.py install /usr/lib/python3.6/distutils/dist.py:261: UserWarning: Unknown distribution option: 'long_description_content_type' warnings.warn(msg) running install running bdist_egg running egg_info writing dalybms.egg-info/PKG-INFO writing dependency_links to dalybms.egg-info/dependency_links.txt writing top-level names to dalybms.egg-info/top_level.txt reading manifest file 'dalybms.egg-info/SOURCES.txt' writing manifest file 'dalybms.egg-info/SOURCES.txt' installing library code to build/bdist.linux-i686/egg running install_lib running build_py creating build/bdist.linux-i686/egg creating build/bdist.linux-i686/egg/dalybms copying build/lib/dalybms/init.py -> build/bdist.linux-i686/egg/dalybms copying build/lib/dalybms/daly_bms_bluetooth.py -> build/bdist.linux-i686/egg/dalybms copying build/lib/dalybms/daly_bms.py -> build/bdist.linux-i686/egg/dalybms copying build/lib/dalybms/error_codes.py -> build/bdist.linux-i686/egg/dalybms copying build/lib/dalybms/daly_sinowealth.py -> build/bdist.linux-i686/egg/dalybms byte-compiling build/bdist.linux-i686/egg/dalybms/init.py to init.cpython-36.pyc byte-compiling build/bdist.linux-i686/egg/dalybms/daly_bms_bluetooth.py to daly_bms_bluetooth.cpython-36.pyc byte-compiling build/bdist.linux-i686/egg/dalybms/daly_bms.py to daly_bms.cpython-36.pyc byte-compiling build/bdist.linux-i686/egg/dalybms/error_codes.py to error_codes.cpython-36.pyc byte-compiling build/bdist.linux-i686/egg/dalybms/daly_sinowealth.py to daly_sinowealth.cpython-36.pyc creating build/bdist.linux-i686/egg/EGG-INFO installing scripts to build/bdist.linux-i686/egg/EGG-INFO/scripts running install_scripts running build_scripts creating build/bdist.linux-i686/egg/EGG-INFO/scripts copying build/scripts-3.6/daly-bms-cli -> build/bdist.linux-i686/egg/EGG-INFO/scripts changing mode of build/bdist.linux-i686/egg/EGG-INFO/scripts/daly-bms-cli to 755 copying dalybms.egg-info/PKG-INFO -> build/bdist.linux-i686/egg/EGG-INFO copying dalybms.egg-info/SOURCES.txt -> build/bdist.linux-i686/egg/EGG-INFO copying dalybms.egg-info/dependency_links.txt -> build/bdist.linux-i686/egg/EGG-INFO copying dalybms.egg-info/top_level.txt -> build/bdist.linux-i686/egg/EGG-INFO zip_safe flag not set; analyzing archive contents... creating 'dist/dalybms-0.1.0-py3.6.egg' and adding 'build/bdist.linux-i686/egg' to it removing 'build/bdist.linux-i686/egg' (and everything under it) Processing dalybms-0.1.0-py3.6.egg Removing /usr/local/lib/python3.6/dist-packages/dalybms-0.1.0-py3.6.egg Copying dalybms-0.1.0-py3.6.egg to /usr/local/lib/python3.6/dist-packages dalybms 0.1.0 is already the active version in easy-install.pth Installing daly-bms-cli script to /usr/local/bin
Installed /usr/local/lib/python3.6/dist-packages/dalybms-0.1.0-py3.6.egg Processing dependencies for dalybms==0.1.0 Finished processing dependencies for dalybms==0.1.0
But still: samuel@nb-lubuntu:~/daly/python-daly-bms$ daly-bms-cli -d /dev/ttyUSB0 --verbose --sinowealth --cell-voltages usage: daly-bms-cli [-h] -d DEVICE [--status] [--soc] [--mosfet] [--cell-voltages] [--temperatures] [--balancing] [--errors] [--all] [--check] [--retry RETRY] [--verbose] daly-bms-cli: error: unrecognized arguments: --sinowealth
You're probably not in the right branch.
cd python-daly-bms
git checkout sinowealth
No, I'm in the sinowealth branch.
samuel@nb-lubuntu:~/daly/python-daly-bms$ git status Auf Branch sinowealth Ihr Branch ist auf demselben Stand wie 'origin/sinowealth'.
nichts zu committen, Arbeitsverzeichnis unverändert samuel@nb-lubuntu:~/daly/python-daly-bms$
What am I doing wrong?
scoleri
commented
3 years ago Did you pull??? You're not getting the new code for whatever reason.
✔ ~/python-daly-bms [sinowealth|⚑ 1]
06:17 # git pull
Already up to date.
> No, I'm in the sinowealth branch.
>
> samuel@nb-lubuntu:~/daly/python-daly-bms$ git status
> Auf Branch sinowealth
> Ihr Branch ist auf demselben Stand wie 'origin/sinowealth'.
>
> nichts zu committen, Arbeitsverzeichnis unverändert
> samuel@nb-lubuntu:~/daly/python-daly-bms$
>
> What am I doing wrong?Yes, of course! The code is up2date.
Now I remove manually the files /usr/local/bin/daly-bms-cli /usr/local/lib/python3.6/dist-packages/dalybms-0.1.0-py3.6.egg
reinstalled it with:
sudo python3 setup.py install
But still the same. daly-bms-cli: error: unrecognized arguments: --sinowealth
In the Scriptfile /daly/python-daly-bms/build/scripts-3.6/daly-bms-cli there is the line
parser.add_argument("--sinowealth", help="BMS with Sinowealth chip", action="store_true")
Strange!
Any futher ideas?
scoleri
commented
3 years ago Is your path right? Maybe you're using another installation ~/.local/bin? something like that? No idea.
SamLue
commented
3 years ago Is your path right? Maybe you're using another installation ~/.local/bin? something like that? No idea.
Yeah! Thanks man. There was also a installation in ~/.local /bin
But still no answer from the bms. samuel@nb-lubuntu: daly-bms-cli -d /dev/ttyUSB0 --sinowealth --soc --verbose DEBUG [daly_sinowealth.py:61] message: bytearray(b'\n\x0b\x02'), 0a0b02 DEBUG [daly_sinowealth.py:83] empty response for command b DEBUG [daly_sinowealth.py:61] message: bytearray(b'\n\x10\x04'), 0a1004 DEBUG [daly_sinowealth.py:83] empty response for command 10 DEBUG [daly_sinowealth.py:61] message: bytearray(b'\n\x13\x02'), 0a1302 DEBUG [daly_sinowealth.py:83] empty response for command 13 {} samuel@nb-lubuntu:
scoleri
commented
3 years ago Mine times out or something when there is no charge. Do negative to negative on the BMS and see if it comes back on. I have a DALY Smart 250a 12volt and for whatever reason when its not charging for a certain amount of time it turns off??? Before the sun came up this morning i got the same response as soon as a tiny bit of sun came up it turned back on.
I'm on US East Coast (Atlanta Georgia)
scoleri
commented
3 years ago I'm getting current now....maybe same issue with power:
root@battery:~# daly-bms-cli -d /dev/ttyUSB0 --sinowealth --soc --cell-voltages --temperatures
{
"total_voltage": 13.377,
"current": 3.14,
"soc_percent": 68.0
}
{
"1": 3.342,
"2": 3.344,
"3": 3.344,
"4": 3.347
}
{
"external1": 29.65,
"external2": 27.31,
"ic1": 29.74,
"ic2": 0.71
}Mine times out or something when there is no charge. Do negative to negative on the BMS and see if it comes back on. I have a DALY Smart 250a 12volt and for whatever reason when its not charging for a certain amount of time it turns off??? Before the sun came up this morning i got the same response as soon as a tiny bit of sun came up it turned back on.
I'm on US East Coast (Atlanta Georgia)
I thought only the Bluetooth Dongle is turned off after some time. But you are right. If I shorten the two PIN's to wake up the BMS I'm getting an answer. If I remember correctly with the sinowealth-software it is not necessary to wake up the BMS before. Maybe there is a serial message which can wake up the BMS!?
I've checked the values against the Bluetooth-App. total_voltage, soc_percent and all cell voltages are fine.
But the temperatur is not correct.
daly-bms-cli -d /dev/ttyUSB0 --sinowealth --temperatures { "external1": 29.28, "external2": 27.31, "ic1": 22.31, "ic2": 0.71 }
In the Smartphone-App via Bluetooth the Temperatur is T1: 19°C
scoleri
commented
3 years ago Sometimes when i put a large load on the battery this returns:
current?
{
"total_voltage": 14.151,
"current": 4294953.151,
"soc_percent": 99
}
{
"1": 3.58,
"2": 3.58,
"3": 3.572,
"4": 3.424
}I've pushed and update for the temperature and current values. I guess the current value is negative while discharging and positive while charging, so a signed, not unsigned integer. For the temperature I'm doing -10 now, so that external1 matches the value that you see in the Bluetooth app. Let's see if that work under all conditions.
I also want to thank you for the heavy testing. Just a small note: If you see wrong values, please run it again with --verbose, so that I can see the raw response that comes from the BMS.
Are you seeing any other values in the app that you're interested in?
scoleri
commented
3 years ago I've updated - still working - its raining now so i'm not charging probably.
It'd be cool to see the current as + or - (in/out).
Mosfet/balancing would be cool too.
Not sure what your nagios output looked like but that'd be cool too.
scoleri
commented
3 years ago actually now i'm seeing - (negative) with load
{
"total_voltage": 13.342,
"current": -12.72,
"soc_percent": 99
}
{
"1": 3.341,
"2": 3.344,
"3": 3.34,
"4": 3.32
}Example of load going on and off:
timestamp,totalvoltage,current,soc
20210527-180824,14.737,7.405,100
20210527-180829,14.692,,100
20210527-180835,14.667,,100
20210527-180841,14.644,,100
20210527-180847,14.626,,100
20210527-180853,14.617,,100
20210527-180859,14.603,,100
20210527-180904,14.467,-14.669,100
20210527-180910,14.377,-11.445,100
20210527-180916,14.311,-10.62,99
20210527-180922,14.255,-8.979,99
20210527-180928,14.223,-7.93,99Just realized the temps are broken now:
root@battery:~# daly-bms-cli -d /dev/ttyUSB0 --sinowealth --temperatures --verbose
Traceback (most recent call last):
File "/usr/local/bin/daly-bms-cli", line 4, in <module>
__import__('pkg_resources').run_script('dalybms==0.1.0', 'daly-bms-cli')
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 658, in run_script
self.require(requires)[0].run_script(script_name, ns)
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 1445, in run_script
exec(script_code, namespace, namespace)
File "/usr/local/lib/python3.6/dist-packages/dalybms-0.1.0-py3.6.egg/EGG-INFO/scripts/daly-bms-cli", line 73, in <module>
File "/usr/local/lib/python3.6/dist-packages/dalybms-0.1.0-py3.6.egg/dalybms/daly_sinowealth.py", line 136, in get_temperatures
ValueError: too many values to unpack (expected 2)Mosfet/balancing would be cool too.
From the commands that I can see in the Windows software, there are a few left which I haven't implement so far:
11 = Full Charge Capacity
12 = Remaining Capacity
14 = Cycle Count
15 = Pack Status
16 = Battery Status
17 = Pack Config
18 = Manufacture AccessFrom the data dump that I got from Sam in the beginning I can tell that 11&12 are just number, but for the other commands I've no idea what the bits and bytes in the returned response mean.
Not sure what your nagios output looked like but that'd be cool too.
Have you tried --check? It doesn't really check something at the moment, it's basically returning the voltage and current as performance data, so that the monitoring can show them in diagrams. But as written above, I don't know what the status codes of the Sinowealth BMS mean, so adding a real check is hard without documentation.
Just realized the temps are broken now:
That should be fixed.
scoleri
commented
3 years ago Yeah temp works now. --check works great thanks. Those other things are interesting but i have what i need for now thank you.
SamLue
commented
3 years ago I have still the wrong value for the temperature.
samuel@nb-lubuntu:~/daly/python-daly-bms$ sudo daly-bms-cli -d /dev/ttyUSB0 --verbose --sinowealth --temperatures
DEBUG [daly_sinowealth.py:61] message: bytearray(b'\n\x0c\x02'), 0a0c02
DEBUG [daly_sinowealth.py:91] 0b7d00 3
DEBUG [daly_sinowealth.py:61] message: bytearray(b'\n\r\x02'), 0a0d02
DEBUG [daly_sinowealth.py:91] 0aab2f 3
DEBUG [daly_sinowealth.py:61] message: bytearray(b'\n\x0e\x02'), 0a0e02
DEBUG [daly_sinowealth.py:91] 08b76b 3
DEBUG [daly_sinowealth.py:61] message: bytearray(b'\n\x0f\x02'), 0a0f02
DEBUG [daly_sinowealth.py:91] 00470b 3
{
"external1": 29.41,
"external2": 27.31,
"ic1": 22.31,
"ic2": 0.71
}
I also recognized that there is no current value with param --soc
samuel@nb-lubuntu:~/daly/python-daly-bms$ sudo daly-bms-cli -d /dev/ttyUSB0 --verbose --sinowealth --soc
DEBUG [daly_sinowealth.py:61] message: bytearray(b'\n\x0b\x02'), 0a0b02
DEBUG [daly_sinowealth.py:91] 34063e 3
DEBUG [daly_sinowealth.py:61] message: bytearray(b'\n\x10\x04'), 0a1004
DEBUG [daly_sinowealth.py:91] 0000000042 5
DEBUG [daly_sinowealth.py:61] message: bytearray(b'\n\x13\x02'), 0a1302
DEBUG [daly_sinowealth.py:91] 005cc5 3
{
"total_voltage": 13.318,
"soc_percent": 92.0
}samuel@nb-lubuntu:~/daly/python-daly-bms$ git pull
Bereits aktuell.
samuel@nb-lubuntu:~/daly/python-daly-bms$ git status
Auf Branch sinowealth
Ihr Branch ist auf demselben Stand wie 'origin/sinowealth'.
nichts zu committen, Arbeitsverzeichnis unverändertAll code is up-to-date and branch is sinowealth.
What's wrong with my installation? Yes, I checked local path ~/.local/bin There is no daly-bms-cli anymore.
dreadnought
commented
3 years ago I've fixed the issue that the current value was missing it was zero, e.g. when the BMS is idle, pull the latest changes to get it.
Regarding the temperature, I think that you're still running an outdated version somehow. Run sudo whereis daly-bms-cli and it will tell you where you're running it from. If you have installed it with sudo, it should be in /usr/local/bin/daly-bms-cli. When you want to update it there, you have to run python3 setup.py install with sudo too, otherwise it will install it in your user account.
SamLue
commented
3 years ago OK,
now current with 0.0 is in the result. Thanks for the fix.
{ "total_voltage": 13.32, "current": 0.0, "soc_percent": 92.0 }
So, first of all for me the important info that I have the latest Version.
But why are the temperture-values still wrong?
dreadnought
commented
3 years ago So, first of all for me the important info that I have the latest Version.
But why are the temperture-values still wrong?
Yes, you're right about that. Please give it another try now, pull again, install, get the temperatures and compare them to what you see in the app.
SamLue
commented
3 years ago Mh, sorry! Still not correct values.
samuel@nb-lubuntu:~/daly/python-daly-bms$ sudo daly-bms-cli -d /dev/ttyUSB0 --verbose --sinowealth --temperatures
DEBUG [daly_sinowealth.py:61] message: bytearray(b'\n\x0c\x02'), 0a0c02
DEBUG [daly_sinowealth.py:91] 0b9596 (3)
DEBUG [daly_sinowealth.py:61] message: bytearray(b'\n\r\x02'), 0a0d02
DEBUG [daly_sinowealth.py:91] 0aab2f (3)
DEBUG [daly_sinowealth.py:61] message: bytearray(b'\n\x0e\x02'), 0a0e02
DEBUG [daly_sinowealth.py:91] 08b76b (3)
DEBUG [daly_sinowealth.py:61] message: bytearray(b'\n\x0f\x02'), 0a0f02
DEBUG [daly_sinowealth.py:91] 00470b (3)
{
"external1": 19.65,
"external2": 17.31,
"ic1": 12.309999999999999,
"ic2": -9.29
}In the App 23°C
dreadnought
commented
3 years ago Thanks for the details, but it's a bit tricky to fix it.
That's the raw data we have so far:
| external1 | external2 | ic1 | ic2 | App |
|---|---|---|---|---|
| 2965 | 2731 | 2974 | 71 | ? |
| 2928 | 2731 | 2231 | 71 | 19 °C |
| 2941 | 2731 | 2231 | 71 | ? |
| 2965 | 2731 | 2231 | 71 | 23 °C |
So we know that external2 and ic2 are useless because they ever change. external1 is moving, but not linear to the temperature show in the app (2928 -> 19 °C, 2965 -> 23 °C). ic1 seems to be fix for each BMS, as the first line is from scoleri and the other three lines are from you.
The BMSTool Windows software could reveal which of the 4 sensors matches the T1 value in the Bluetooth app. Then we still need to figure out how the conversion gets calculated.
SamLue
commented
3 years ago OK,
I know that my BMS has only one external temp sesor.
So, can you try it with the following calculation.
(external1 - external2)/10 Example: (2965 - 2731)/10 = 234/10 = 23,4 °C
If you have implemented this, I will check some extreme values between App and this calc.
Maybe 2731 is a reference value for 0?
dreadnought
commented
3 years ago You've found out that the values are in Kelvin (273,1 K = 0 °C), very good. I've applied a change that implements the conversion from Kelvin to °C, please give it a try.
scoleri
commented
3 years ago Still working ok for me.
root@battery:~# daly-bms-cli -d /dev/ttyUSB0 --sinowealth --soc --cell-voltages --temperatures
{
"total_voltage": 13.538,
"current": 13.695,
"soc_percent": 97.0
}
{
"1": 3.373,
"2": 3.383,
"3": 3.375,
"4": 3.407
}
{
"external1": 25.80000000000001,
"external2": 0.10000000000002274
}I've merged the changes to the main branch and released v0.2.0. Feel free to open a new ticket, if you run into any problems.
DocBrown101
commented
3 years ago Thank you, now it works for me too! I hope the missing values will still be added :)
JohannesF89
commented
2 years ago Hi, first of all thanks for the great work and great piece of software. I own a Daly BMS 40A BT, 8S LiFePo4 24V and connected a raspberry through the serial port
my question is, do somebody know why I get just empty results from the bms?
pi@raspberrypi:~/python-daly-bms $ daly-bms-cli -d /dev/serial0 --verbose --sinowealth --soc DEBUG [daly_sinowealth.py:93] message: bytearray(b'\n\x0b\x02'), 0a0b02 DEBUG [daly_sinowealth.py:115] empty response for command b DEBUG [daly_sinowealth.py:93] message: bytearray(b'\n\x10\x04'), 0a1004 DEBUG [daly_sinowealth.py:115] empty response for command 10 DEBUG [daly_sinowealth.py:93] message: bytearray(b'\n\x13\x02'), 0a1302 DEBUG [daly_sinowealth.py:115] empty response for command 13 {}
or maybe what I'm doing wrong?
JohannesF89
commented
2 years ago also tried with --uart.
but still no response
Hey,
first of all: Thanks for your work and this Projekt.
And maybe this Error is only a Problem of my Setup.
I have a Daly Smart BMS 4S 12V 100A. This BMS is connected via the Monitor Port and the original cable with an Lubuntu (Ubuntu 18.04.5 LTS). (With this cable I can read the data and configure the BMS through the sinowealth software from a windows PC)
samuel@nb-lubuntu:~$ python3 --version Python 3.6.9
samuel@nb-lubuntu:~$ pip3 show pyserial Name: pyserial Version: 3.5 Summary: Python Serial Port Extension Home-page: https://github.com/pyserial/pyserial Author: Chris Liechti Author-email: cliechti@gmx.net License: BSD Location: /home/samuel/.local/lib/python3.6/site-packages Requires:
I have also set the right permission to the user (Added the user to the group dialout)
But I still get no data from my BMS. Instead I get the following Error: samuel@nb-lubuntu:~$ daly-bms-cli -d /dev/ttyUSB0 --soc ERROR [daly_bms.py:88] 94 failed after 5 tries ERROR [daly_bms.py:88] 90 failed after 5 tries false
Which BMS do you use and how is it connected? Do you connect your BMS with UART-Port? At the moment it is used by the Bluetooth-Dongle and I have no USB-Calbe for UART.
I hope you can help me with my problems. Sam