PvdGulik commented 1 year ago

Would be nice if all sort of data could be send by MQTT to domoticz, home assistant etc.

yoh-there commented 1 year ago

I don't think there is much appetite to develop this, main reason being that CanZE only queries what's required by the UI. In other words, what would be spit out would be entirely dependent on what the end user is doing.

For what you request the Renault API would be more appropriate, though a lot slower and for the older model cars more limited and less reliable.

sanchosk commented 10 months ago

Actually, it would be great if, let's say, canSee dongle could automatically connect to specific wifi (e.g. at home) and report data to MQTT for battery level, range, current charging power, etc. The problem with Renault API is that for lots of Zoes the subscription is no longer even available. So while the car works perfectly and your app can (mostly) read the data while in car, I have no way how to connect it to my home. Currently reading through your source code, trying to find out how to send command to ELM327 dongle to get the battery SoC and similar data and researching ELMduino on how to implement custom PIDs. The idea would be to have one ESP32 in the garage, when the car arrives and the BT dongle is visible, it will try to connect and start to report the data to MQTT, where it can be consumed by HA or NodeRed, etc. I think this would be appreciated by a lot of people.

yoh-there commented 10 months ago

The CanSee dongle can do that. Not through mqtt but through http.

On Sun, Jun 25, 2023, 19:57 Robert Klauco @.***> wrote:

Actually, it would be great if, let's say, canSee dongle could automatically connect to specific wifi (e.g. at home) and report data to MQTT for battery level, range, current charging power, etc. The problem with Renault API is that for lots of Zoes the subscription is no longer even available. So while the car works perfectly and your app can (mostly) read the data while in car, I have no way how to connect it to my home. Currently reading through your source code, trying to find out how to send command to ELM327 dongle to get the battery SoC and similar data and researching ELMduino on how to implement custom PIDs. The idea would be to have one ESP32 in the garage, when the car arrives and the BT dongle is visible, it will try to connect and start to report the data to MQTT, where it can be consumed by HA or NodeRed, etc. I think this would be appreciated by a lot of people.

— Reply to this email directly, view it on GitHub https://github.com/fesch/CanZE/issues/752#issuecomment-1606197504, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABF7XVQRGWQZ4ES2SJLL54DXNB32LANCNFSM55WAYO6Q . You are receiving this because you commented.Message ID: @.***>

sanchosk commented 10 months ago

Can you post some short description on how canSee does it?

yoh-there commented 10 months ago

The CanSee dongle uses an esp32 for Bluetooth and Wifi. It's fairly low level (you need to know the canbus IDs), but for that reason also flexible; the dongle doesn't know anything functional. But it can connect to wifi, provides http access (than canze van make use of btw). A bit of programming in node-red or home assistant could do the trick.

Added bonus: canze will become at 4-10 times faster.

From memory (I am on my phone now): https://gitlab.com/jeroenmeijer/CanSee

On Sun, Jun 25, 2023, 20:02 Robert Klauco @.***> wrote:

Can you post some short description on how canSee does it?

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sanchosk commented 10 months ago

I am reading the source code and this CanSee should be pretty simple to mod to also publish to MQTT. My only problem is that I do not know the can IDs for battery SoC, range, charging power, etc. But still in process of reading the source code of the CanZE, so I might find it out later.

yoh-there commented 10 months ago

I deliberately did not want to put the intelligence of what to send to the car how to interpret the resulting data in the dongle. IMHO that is an application responsibility, aka canze or the home automation.

Of course it can be done!

On Sun, Jun 25, 2023, 20:18 Robert Klauco @.***> wrote:

I am reading the source code and this CanSee should be pretty simple to mod to also publish to MQTT. My only problem is that I do not know the can IDs for battery SoC, range, charging power, etc. But still in process of reading the source code of the CanZE, so I might find it out later.

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sanchosk commented 10 months ago

Yep, that's exactly what I want - replace HTTP for MQTT and then "teach" the automation the codes to send/receive. I found so far the response code for the CAN for Available discharge energy (427.49) in _Fields.csv file, but it does not include the PIDs I need to ask for - it seems I need to ask for some other PID to talk to BMS and that will then spit a lot of data, some of which will be this 427.49 value for Available discharge. This seems quite promising, already ordering the 2 CAN bus controllers, have plenty of ESP32s around and also the DC2DC converter, so this will be fun :) Now to find PIDs that the automation should ask and I am golden.

sanchosk commented 10 months ago

Thanks for kicking me in the right direction. As I need to wait for the HW for CanSee to be built, I'll try to do something else. I now can understand more or less the codes sent by AT commands in CanZE. I can do the frame set header, the filter, etc. Then I cat set the request, for example to 0322502c, where the 22502c seems to be a code for PID 427.49 - from the ZOE_Ph2/_Fields.csv. Then I'll get a response starting with 0562320cxxxxAAAA, in my example 0562320C0DC4AAAA. This can then be separated from the response code, the real data will then be 0DC4. According the same file (ZOE_Ph2/_Fields.csv), I need to multiply the value using coeficient 0.005 to get the kWh available. And really, the 0DC4 translates to 3524 decimal, multiplied by 0.005 it makes 17.62kWh.

PERFECT! I am SO close to have this ready to connect to Home Assistant, thanks again!

KarelSvo commented 10 months ago

how to send command to ELM327 dongle

############################################################

[06/26/23 18:42:20.393] Init CAN

############################################################ AT WS AT E1 AT S0 AT H0 AT L0 AT AL AT CAF0 AT CFC1

############################################################

connect to: Addr:93

############################################################ AT CP 18 AT SH DADBF1 AT FC SH 18DADBF1 AT FC SD 30 00 00 AT FC SM 1 AT ST FF AT AT 0 AT SP 7 AT AT 1 AT CRA 18DAF1DB 02 1003 03 229002

custom PIDs

name,ShortName,ModeAndPID,Equation,Min Value,Max Value,Units,Header "Battery USOC(Wxx_usocavg)","DID$9002","229002","(A256+B)0.01","0","0","%","18DADBF1"

bms.pid.zip

sanchosk commented 10 months ago

Thanks, this would take me 2 years :) All the commands end with OK (except the first one that reports ELM327 v2.3), but the last 2 commands end with "NO DATA>" :( So perhaps I am doing something wrong...

KarelSvo commented 10 months ago

I don't know which vehicle you are sending to. The parameter belongs to Zoe Phase 2 or other vehicles with RBMS Ecu.

sanchosk commented 10 months ago

Sending to Zoe Phase 2 - build year 2014. It seems OK if the CAN bus is offline (when the car is off), it does report CAN ERROR and NO DATA, when the car is on, it reports NO DATA and NO DATA. Perhaps I am doing something wrong...

KarelSvo commented 10 months ago

Phase 2 is from September 2019.

sanchosk commented 10 months ago

You can clearly see I am totally aware of all the details :D Looking at the CanZE, I have it set to ZOE Q210 and it works (mostly, sometimes it fails to reset the ELM chip correctly). Any chance you would know the correct sequence for my model of Zoe?

KarelSvo commented 10 months ago

############################################################

[06/26/23 19:38:27.389] Init CAN

############################################################ AT WS AT E1 AT S0 AT H0 AT L0 AT AL AT CAF0 AT CFC1 ############################################################

connect to: Addr:93

############################################################ AT SH 79B AT FC SH 79B AT FC SD 30 00 00 AT FC SM 1 AT ST FF AT AT 0 AT SP 6 AT AT 1 AT CRA 7BB 02 10C0 03 221405

_Battery USOC","221405","A/2.0","0","0","%","79B"

sanchosk commented 10 months ago

This returned some data!!!

ELM serialBT: 0250C00000000000 ELM serialBT: 037F221100000000

KarelSvo commented 10 months ago

ELM serialBT: 0250C00000000000 positive reply to 10C0

ELM serialBT: 037F221100000000 negative answer "Service Not Supported"

02 10C0 02 2180 Software data string 03 221404 real battery SOC 03 221406 SOH

sanchosk commented 10 months ago

I will check the flow for the CanZE - how it communicates with the car when it tries to read the data. It seems that for my car, the relevant line is ,7ec,24,39,.02,0,2,%,222002,622002,ff,State Of Charge (SOC) HV battery This field is something I can see both in debug and field log from CanZE. Just need to find out how to set the filters for it. I am SO CLOSE!!! Thanks a lot, Karel!

KarelSvo commented 10 months ago

############################################################

connect to: Addr:95

############################################################ AT SH 7E4 AT FC SH 7E4 AT FC SD 30 00 00 AT FC SM 1 AT ST FF AT AT 0 AT SP 6 AT AT 1 AT CRA 7EC 02 10C0 03 222002

sanchosk commented 10 months ago

You are GENIUS! 056220020FF8AAAA => exactly what I've been looking for - 81.76% SoC! Do you have some coffee/paypal or similar account, do that I can say "thank you" in credits?

sanchosk commented 10 months ago

@KarelSvo Unfortunately, the code worked for 1 day and now all the commands receive OK, but the last one receives STOPPED>. Any chance you have some idea what am I doing wrong?

sanchosk commented 10 months ago

Fixed - removing the 02 10C0 step and only doing the 03 222002 returns the data no problem (as long as the car does not go to sleep :D).

sanchosk commented 5 months ago

@KarelSvo Sorry to bother you again (I really owe you a coffee already, or better some good Czech beer). I am trying now to grab odometer status and report it to MQTT. All other reports (available kWh, available range) already work thanks to you. However, for the odometer, I end up with timeout (no data received). I tried to duplicate the items I have in log from communicating using CanZE with my Zoe, but I am failing. Last time, you were the one able to find the "missing piece" in the AT commands. Perhaps you can do your magic one more time?

>  ate0
<  OK>

>  ats0
<  OK>

>  ath0
<  OK>

>  atl0
<  OK>

>  atal
<  OK>

>  atcaf0
<  OK>

>  atfcsh77b
<  OK>

>  atfcsd300000
<  OK>

>  atfcsm1
<  OK>

>  atsp6
<  OK>

>  atsp6
<  OK>

>  atsh79c
<  OK>

>  atcra7bc
<  OK>

>  03224b9b
<  NO DATA>

KarelSvo commented 5 months ago

AT WS AT E1 AT S0 AT H0 AT L0 AT AL AT CAF0 AT CFC1

AT SH 7E4 AT FC SH 7E4 AT FC SD 30 00 00 AT FC SM 1 AT ST FF AT AT 0 AT SP 6 AT AT 1 AT CRA 7EC 03222006 TOTAL_VEHICLE_DISTANCE

(A multiplied 65536 + B multiplied 256 + C) `

sanchosk commented 5 months ago

Thanks, it took me a while to get the fact that it's the last 3 of 4 numbers that matter :) But it works - now it's 2 beers/coffees. 032220060662200601A497AA - from this the 01A497 is the odometer :+1: Thanks again!

fesch / CanZE

MQTT #752

[06/26/23 18:42:20.393] Init CAN

connect to: Addr:93

[06/26/23 19:38:27.389] Init CAN

connect to: Addr:93

connect to: Addr:95