Reading from Honda Clarity Plugin

alexsahka commented 6 months ago

I completed everything per Wiki: https://github.com/meatpiHQ/wican-fw/wiki/EV-Battery-SoC-in-Home-Assistant-%E2%80%90-Example

Car Scanner set to read SOC Voltage

{"bus":"0","type":"tx","ts":29165,"frame":[{"id":417018865,"dlc":8,"rtr":false,"extd":true,"data":[2,1,11,170,170,170,170,170]}]} {"bus":"0","type":"tx","ts":29098,"frame":[{"id":417018865,"dlc":8,"rtr":false,"extd":true,"data":[2,1,7,170,170,170,170,170]}]} {"bus":"0","type":"tx","ts":29022,"frame":[{"id":417018865,"dlc":8,"rtr":false,"extd":true,"data":[2,1,6,170,170,170,170,170]}]} {"bus":"0","type":"tx","ts":23895,"frame":[{"id":417018865,"dlc":8,"rtr":false,"extd":true,"data":[2,1,0,170,170,170,170,170]}]} {"bus":"0","type":"tx","ts":23153,"frame":[{"id":417018865,"dlc":8,"rtr":false,"extd":true,"data":[2,1,0,170,170,170,170,170]}]}

{"bus":"0","type":"rx","ts":23907,"frame":[{"id":417001750,"dlc":8,"rtr":false,"extd":true,"data":[6,65,0,152,24,128,3,85]}]} {"bus":"0","type":"rx","ts":23906,"frame":[{"id":417001770,"dlc":8,"rtr":false,"extd":true,"data":[6,65,0,152,24,128,1,85]}]} {"bus":"0","type":"rx","ts":23905,"frame":[{"id":417001749,"dlc":8,"rtr":false,"extd":true,"data":[6,65,0,152,24,128,3,85]}]} {"bus":"0","type":"rx","ts":23905,"frame":[{"id":417001749,"dlc":8,"rtr":false,"extd":true,"data":[6,65,0,152,24,128,3,85]}]} {"bus":"0","type":"rx","ts":23898,"frame":[{"id":417001729,"dlc":8,"rtr":false,"extd":true,"data":[6,65,0,152,24,128,3,85]}]} {"bus":"0","type":"rx","ts":23160,"frame":[{"id":417001742,"dlc":8,"rtr":false,"extd":true,"data":[6,65,0,182,60,168,19,85]}]} {"bus":"0","type":"rx","ts":23159,"frame":[{"id":417001730,"dlc":8,"rtr":false,"extd":true,"data":[6,65,0,152,24,128,3,85]}]} {"bus":"0","type":"rx","ts":23157,"frame":[{"id":417001734,"dlc":8,"rtr":false,"extd":true,"data":[6,65,0,152,24,128,3,85]}]}

Car Scanner set to read Odometer.

{"bus":"0","type":"tx","ts":1916,"frame":[{"id":416964849,"dlc":8,"rtr":false,"extd":true,"data":[48,0,10,170,170,170,170,170]}]} {"bus":"0","type":"tx","ts":1907,"frame":[{"id":416964849,"dlc":8,"rtr":false,"extd":true,"data":[3,34,112,34,170,170,170,170]}]} {"bus":"0","type":"tx","ts":1686,"frame":[{"id":416964849,"dlc":8,"rtr":false,"extd":true,"data":[48,0,10,170,170,170,170,170]}]}

{"bus":"0","type":"rx","ts":1684,"frame":[{"id":417001824,"dlc":8,"rtr":false,"extd":true,"data":[16,57,98,112,34,236,0,0]}]} {"bus":"0","type":"rx","ts":1606,"frame":[{"id":417001824,"dlc":8,"rtr":false,"extd":true,"data":[40,0,0,85,85,85,85,85]}]} {"bus":"0","type":"rx","ts":1594,"frame":[{"id":417001824,"dlc":8,"rtr":false,"extd":true,"data":[39,0,0,0,0,0,0,0]}]} {"bus":"0","type":"rx","ts":1575,"frame":[{"id":417001824,"dlc":8,"rtr":false,"extd":true,"data":[37,0,0,0,0,0,0,0]}]} {"bus":"0","type":"rx","ts":1534,"frame":[{"id":417001824,"dlc":8,"rtr":false,"extd":true,"data":[33,0,0,0,1,100,236,0]}]} {"bus":"0","type":"rx","ts":41601,"frame":[{"id":417001824,"dlc":8,"rtr":false,"extd":true,"data":[16,57,98,112,34,236,0,0]}]}

How do I convert this data into a human-readable format?

I spent the past week trying to find a solution, but I'm still unsure what to do with this data. Can anyone guide me in the right direction?

meatpiHQ commented 6 months ago

@alexsahka

Your mqtt log should look like this, tx then rx frame. It would be great if you can post more mqtt logs for the SoC, and what is the SoC showing in car scanner, so we can try and guess how it's calculated,

alexsahka commented 6 months ago

@alexsahka

Your mqtt log should look like this, tx then rx frame. It would be great if you can post more mqtt logs for the SoC, and what is the SoC showing in car scanner, so we can try and guess how it's calculated,

There isn't always a TX frame followed immediately by an RX frame. Additionally, I'm seeing a lot of frames in MQTT Explorer. How can I capture these frames, and is there a limit on the number I can capture?

meatpiHQ commented 6 months ago

@alexsahka When you're logging from carscanner do you click on the SoC?

When you click on the SoC or other sensors in carscanner, it will only request that specific sensor.

alexsahka commented 6 months ago

@alexsahka When you're logging from carscanner do you click on the SoC?

When you click on the SoC or other sensors in carscanner, it will only request that specific sensor.

When using only the carscanner SoC sensor, the MQTT topic "wican/f412fa33xxxx/can/rx" receives a high volume of messages (multiple per second). Is this behavior expected, or is there an issue with my setup?

alexsahka commented 6 months ago

@alexsahka When you're logging from carscanner do you click on the SoC?

When you click on the SoC or other sensors in carscanner, it will only request that specific sensor.

If we're unable to resolve this simple question regarding product support, I'll need to return the x3 MeatPis units to Mouser due to their lack of support availability. I have only a few days left to return the item within the 30-day return window. Thanks anyway, good looking product.

meatpiHQ commented 6 months ago

When using only the carscanner SoC sensor, the MQTT topic "wican/f412fa33xxxx/can/rx" receives a high volume of messages (multiple per second).

Yes that's normal. On some car's you might see a multi-line response for a PID request. If you post the frame sequence here i can help you look analyze it.

https://github.com/meatpiHQ/wican-fw/discussions/86

If we're unable to resolve this simple question regarding product support

For your reference it usually takes me 24 to 72 hours to respond to issues, I try to respond to every user to my best ability.

I'll need to return the x3 MeatPis units to Mouser due to their lack of support availability.

You can reach out to Mouser customer service and they will help you out.

alexsahka commented 6 months ago

When using only the carscanner SoC sensor, the MQTT topic "wican/f412fa33xxxx/can/rx" receives a high volume of messages (multiple per second).

Yes that's normal. On some car's you might see a multi-line response for a PID request. If you post the frame sequence here i can help you look analyze it.

86

If we're unable to resolve this simple question regarding product support

For your reference it usually takes me 24 to 72 hours to respond to issues, I try to respond to every user to my best ability.

I'll need to return the x3 MeatPis units to Mouser due to their lack of support availability.

You can reach out to Mouser customer service and they will help you out.

Ok, my bad! I finally figured out how to capture the MQTT data stream.

Here SOC data:

meatpiHQ commented 6 months ago

@alexsahka there's a lot of Rx frame, as suspected it multi frame response. What was the exact SoC value for this log?

Another thing were you able to find any info on reading the SoC for this car?

alexsahka commented 6 months ago

@alexsahka there's a lot of Rx frame, as suspected it multi frame response. What was the exact SoC value for this log?

Another thing were you able to find any info on reading the SoC for this car?

While experimenting with the ignition ON, I tried to capture the MQTT data stream. Unfortunately, I don't remember the exact number, but it should be between 96 and 99. I searched for information on how to read the SoC on the Honda Clarity PHEV, but haven't found anything yet.

meatpiHQ commented 6 months ago

@alexsahka you should record the exact SoC while logging, this will help when trying to guess the SoC.

I also found the link below, I haven't gone through it all yet but seems helpful.

https://www.insideevsforum.com/community/index.php?threads/budget-battery-capacity-readout.10531/page-3

alexsahka commented 6 months ago

@alexsahka you should record the exact SoC while logging, this will help when trying to guess the SoC.

I also found the link below, I haven't gone through it all yet but seems helpful.

https://www.insideevsforum.com/community/index.php?threads/budget-battery-capacity-readout.10531/page-3

Thanks for the link! I actually saw this before, but I missed the part where MrFixit posted a config file for CarScanner. I downloaded that zip file, and inside it, I found a file named "claritypid.csp." I opened it with Notepad++ and found the line with SOC info. Here's the line:

"NM":"[Clarity]SOC","SNM":"SOC","CMD":"22202A","RL":0,"MAX":100.0,"MIN":0.0,"Id":2038,"VIS":true,"SkipCycles":0},{"SBI":104,"DL":1,"MUL":1.0,"DIV":1.0,"OFS":0.0,"SIG":false,"TP":1,"BIT":0,"FHID":false,"RBS":false,"HDR":"DA01F1","FR":"/1#104#1","UN":0,"BCM":"","ACM":"","ACT":false,"TRNS":[]

Here is the Battery capacity: "NM":"[Clarity]Battery Capacity (total)","SNM":"Batt Cap","CMD":"22202A","RL":0,"MAX":100.0,"MIN":0.0,"Id":2030,"VIS":true,"SkipCycles":0},{"SBI":167,"DL":2,"MUL":1.0,"DIV":100.0,"OFS":0.0,"SIG":false,"TP":1,"BIT":0,"FHID":false,"RBS":false,"HDR":"DA16F1","FR":"/100#167","UN":62,"BCM":"","ACM":"","ACT":false,"TRNS":[]

meatpiHQ commented 6 months ago

@alexsahka When you load claritypid.csp into carscanner are you able to use it to read the SoC?

alexsahka commented 6 months ago

@alexsahka When you load claritypid.csp into carscanner are you able to use it to read the SoC?

Three years ago, CarScanner did not support the Honda Clarity PHEV. However, the latest version of CarScanner offers full support for this vehicle. No claritypid.csp needed.

meatpiHQ commented 6 months ago

@alexsahka it's weird because I cannot find the CAN IDs in the mqtt log you posted.

alexsahka commented 6 months ago

What is this then? "id":416940529 or "id":417001729

@alexsahka it's weird because I cannot find the CAN IDs in the mqtt log you posted.

meatpiHQ commented 6 months ago

@alexsahka id 416940529 in Hex is 18DA01F1. I don't see that in the file.

alexsahka commented 6 months ago

@alexsahka id 416940529 in Hex is 18DA01F1. I don't see that in the file.

The file contains many hexadecimal numbers that appear similar "HDR":"DA01F1" , but there seems to be a missing two numbers 18. Are there any conversion methods we can use to fill in the missing value?

On that forum, MrFixit does some kind of conversion. https://www.insideevsforum.com/community/index.php?threads/budget-battery-capacity-readout.10531/page-8#post-125374

meatpiHQ commented 6 months ago

@alexsahka I think the best way forward is to try crack the car scanner logs.

Let's try to log 2 readings, at 2 different SoC levels. Note the SoC value you read from car scanner and log the can tx Rx frames like you've done before, do this for both SoC levels.

alexsahka commented 6 months ago

@alexsahka I think the best way forward is to try crack the car scanner logs.

Let's try to log 2 readings, at 2 different SoC levels. Note the SoC value you read from car scanner and log the can tx Rx frames like you've done before, do this for both SoC levels.

Here are 3 different SOC%:

SOC 94%

SOC 96%

SOC 99%

meatpiHQ commented 6 months ago

@alexsahka got it! That was the easiest one so far.

94%

{"bus":"0","type":"rx","ts":39097,"frame":[{"id":417001729,"dlc":8,"rtr":false,"extd":true,"data":[39,129,0,193,0,3,94,32]}]}

96%

{"bus":"0","type":"rx","ts":49648,"frame":[{"id":417001729,"dlc":8,"rtr":false,"extd":true,"data":[39,129,0,193,0,3,96,32]}]}

99%

{"bus":"0","type":"rx","ts":46340,"frame":[{"id":417001729,"dlc":8,"rtr":false,"extd":true,"data":[39,129,0,193,0,3,99,32]}]}

alexsahka commented 6 months ago

Could you help me further? I sending 2 MQTT messages to wican/device/can/tx msg.payload = { "bus": "0", "type": "tx", "frame": [{ "id": 416940529, "dlc": 8, "rtr": false, "extd": true, "data": [3, 34, 32, 42, 170, 170, 170, 170] }] };

delay 200ms

msg.payload = { "bus": "0", "type": "tx", "frame": [{ "id": 416940529, "dlc": 8, "rtr": false, "extd": true, "data": [48, 0, 10, 170, 170, 170, 170, 170] }] };

and nothing rx back to MQTT.

I don't understand what I'm doing. How do I wake up the CAN bus when the car is OFF? Thank you for understanding.

Here is a screenshot for settings:

meatpiHQ commented 5 months ago

@alexsahka Do you get a response when the car is running?

Can you try to leave the car open while it charging see if the ECU goes to sleep?

alexsahka commented 5 months ago

@alexsahka Do you get a response when the car is running?

Can you try to leave the car open while it charging see if the ECU goes to sleep?

Sorry for the confusion. I actually had two questions combined in one. Please disregard the question about how to wake the CAN bus. All the tests I performed were done with the ignition ON.

meatpiHQ commented 5 months ago

@alexsahka so if i understand correctly, the issue here is that you're not getting any rx data?

Can you please try to remove all the filters, and just keep the first one?

alexsahka commented 4 months ago

@alexsahka so if i understand correctly, the issue here is that you're not getting any rx data?

Can you please try to remove all the filters, and just keep the first one?

Posting to: wican/xxxxxxx/can/tx

This payloads:

msg.payload = { "bus": "0", "type": "tx", "frame": [{ "id": 416940529, "dlc": 8, "rtr": false, "extd": false, "data": [3, 34, 32, 42, 170, 170, 170, 170] }] };

or:

msg.payload = { "bus": "0", "type": "tx", "frame": [{ "id": 416940529, "dlc": 8, "rtr": false, "extd": false, "data": [48, 0, 10, 170, 170, 170, 170, 170] }] };

Nothing received back Ignition is ON.

alexsahka commented 4 months ago

@alexsahka so if i understand correctly, the issue here is that you're not getting any rx data?

Can you please try to remove all the filters, and just keep the first one?

Can you help me with the issue of not receiving any RX back to MQTT? If I can gain traction with this, I'll be able to understand how to get other sensors to read in the future. Is the PID 39 is correct one?

meatpiHQ commented 4 months ago

@alexsahka I suggest that you remove all filters first. And test with some standard PID like Engine speed. https://www.csselectronics.com/pages/obd2-pid-table-on-board-diagnostics-j1979

Note that if you have 1 filter added, all other CAN IDs will be disabled.

alexsahka commented 4 months ago

@alexsahka I suggest that you remove all filters first. And test with some standard PID like Engine speed. https://www.csselectronics.com/pages/obd2-pid-table-on-board-diagnostics-j1979

Note that if you have 1 filter added, all other CAN IDs will be disabled.

Yes I left the only one with PID 39

meatpiHQ commented 4 months ago

@alexsahka ok. If you remove the PID 39 filter, do you receive a CAN frame on MQTT?

alexsahka commented 4 months ago

@alexsahka ok. If you remove the PID 39 filter, do you receive a CAN frame on MQTT?

Thanks, I learned the troubleshooting step! Received RX frame but different than with the car scanner app.

meatpiHQ commented 4 months ago

@alexsahka try this

1- Send this frame first

{"payload":{"bus":"0","type":"tx","ts":49627,"frame":[{"id":416940529,"dlc":8,"rtr":false,"extd":true,"data":[3,34,32,42,170,170,170,170]}]}}

2- wait for this frame:

{"payload":{"bus":"0","type":"rx","ts":49630,"frame":[{"id":417001729,"dlc":8,"rtr":false,"extd":true,"data":[16,246,98,32,42,255,255,63]}]}}

3- After you receive the frame in step 2, send this frame.

{"payload":{"bus":"0","type":"tx","ts":49632,"frame":[{"id":416940529,"dlc":8,"rtr":false,"extd":true,"data":[48,0,10,170,170,170,170,170]}]}}

alexsahka commented 4 months ago

1- Send this frame first

{"payload":{"bus":"0","type":"tx","ts":49627,"frame":[{"id":416940529,"dlc":8,"rtr":false,"extd":true,"data":[3,34,32,42,170,170,170,170]}]}}

2- wait for this frame:

{"payload":{"bus":"0","type":"rx","ts":49630,"frame":[{"id":417001729,"dlc":8,"rtr":false,"extd":true,"data":[16,246,98,32,42,255,255,63]}]}}

3- After you receive the frame in step 2, send this frame.

{"payload":{"bus":"0","type":"tx","ts":49632,"frame":[{"id":416940529,"dlc":8,"rtr":false,"extd":true,"data":[48,0,10,170,170,170,170,170]}]}}

1- Sent this frame

{"payload":{"bus":"0","type":"tx","ts":49627,"frame":[{"id":416940529,"dlc":8,"rtr":false,"extd":true,"data":[3,34,32,42,170,170,170,170]}]}}

2- recived this frame:

{"payload":{"bus":"0","type":"rx","ts":49630,"frame":[{"id":417001729,"dlc":8,"rtr":false,"extd":true,"data":[16,246,98,32,42,255,255,63]}]}}

3- Sent this frame

{"payload":{"bus":"0","type":"tx","ts":49632,"frame":[{"id":416940529,"dlc":8,"rtr":false,"extd":true,"data":[48,0,10,170,170,170,170,170]}]}}

4- Nothing recived

meatpiHQ commented 4 months ago

@alexsahka are you doing this manually or using Home assistant or a script?

Do you send the frame in step 2 without any delay?

If there's a big enough delay the ECU might ignore the frame.

alexsahka commented 4 months ago

100 msec

alexsahka commented 4 months ago

@alexsahka are you doing this manually or using Home assistant or a script?

Do you send the frame in step 2 without any delay?

If there's a big enough delay the ECU might ignore the frame.

Sometimes when I quickly and randomly press the inject node with the 100 ms delay node I can see a very long RX frame.

meatpiHQ commented 4 months ago

@alexsahka try to use a subscribe node to the Rx topic, and the Rx node should trigger your "TEST2 req"

This way the 2nd frame is triggered after the first RX, without any delay.

alexsahka commented 4 months ago

@alexsahka try to use a subscribe node to the Rx topic, and the Rx node should trigger your "TEST2 req"

This way the 2nd frame is triggered after the first RX, without any delay.

Now it is consistently responding with different long RX frames, similar to what I received during the carscanner capture session.

alexsahka commented 4 months ago

@alexsahka try to use a subscribe node to the Rx topic, and the Rx node should trigger your "TEST2 req"

This way the 2nd frame is triggered after the first RX, without any delay.

But I haven't seen this RX frame starting with 39 yet.

meatpiHQ commented 4 months ago

@alexsahka what I meant is that you should make a mqtt subscription node that subscribe to the Rx topic and waits for this frame

{"payload":{"bus":"0","type":"rx","ts":49630,"frame":[{"id":417001729,"dlc":8,"rtr":false,"extd":true,"data":[16,246,98,32,42,255,255,63]}]}}

Then the subscription node should trigger another node that sends this frame:

{"payload":{"bus":"0","type":"tx","ts":49632,"frame":[{"id":416940529,"dlc":8,"rtr":false,"extd":true,"data":[48,0,10,170,170,170,170,170]}]}}

alexsahka commented 4 months ago

@alexsahka what I meant is that you should make a mqtt subscription node that subscribe to the Rx topic and waits for this frame

{"payload":{"bus":"0","type":"rx","ts":49630,"frame":[{"id":417001729,"dlc":8,"rtr":false,"extd":true,"data":[16,246,98,32,42,255,255,63]}]}}

Then the subscription node should trigger another node that sends this frame:

{"payload":{"bus":"0","type":"tx","ts":49632,"frame":[{"id":416940529,"dlc":8,"rtr":false,"extd":true,"data":[48,0,10,170,170,170,170,170]}]}}

alexsahka commented 4 months ago

@alexsahka what I meant is that you should make a mqtt subscription node that subscribe to the Rx topic and waits for this frame

{"payload":{"bus":"0","type":"rx","ts":49630,"frame":[{"id":417001729,"dlc":8,"rtr":false,"extd":true,"data":[16,246,98,32,42,255,255,63]}]}}

Then the subscription node should trigger another node that sends this frame:

{"payload":{"bus":"0","type":"tx","ts":49632,"frame":[{"id":416940529,"dlc":8,"rtr":false,"extd":true,"data":[48,0,10,170,170,170,170,170]}]}}

I think I captured the SOC frame

meatpiHQ commented 4 months ago

@alexsahka looks good! You need to update to the latest firmware version. There's a new PID index feature. You'll need it for the filter.

alexsahka commented 4 months ago

@alexsahka looks good! You need to update to the latest firmware version. There's a new PID index feature. You'll need it for the filter.

This worked for me, thank you for your help!

meatpiHQ commented 4 months ago

@alexsahka Great! But it's better if you use

PID: 129 index: 1

alexsahka commented 4 months ago

@alexsahka Great! But it's better if you use

PID: 129 index: 1

Can you explain? Just curious, for future reference.

meatpiHQ commented 4 months ago

@alexsahka you might want to add another PID request with multiple frame response, the 34 won't be unique. Anyway it's not that critical.

alexsahka commented 4 months ago

@alexsahka Do you get a response when the car is running?

Can you try to leave the car open while it charging see if the ECU goes to sleep?

I left the car unlocked while it was charging, and the ECU is not responding. Is there a way to wake the ECU up?

meatpiHQ commented 4 months ago

@alexsahka I don't know if there is a way to wake up the ECU. Is there any CAN activity while charging?

alexsahka commented 4 months ago

@alexsahka I don't know if there is a way to wake up the ECU. Is there any CAN activity while charging?

When the vehicle's ignition is turned off, regardless of whether it's charging or not, the Car scanner app only displays the OBD voltage. All other sensor readings disappear.

alexsahka commented 4 months ago

@alexsahka I don't know if there is a way to wake up the ECU. Is there any CAN activity while charging?

Here's an idea: The adapter could record parameters every minute or more frequently. When it disconnects from the ECU, it would then start publishing to MQTT upon connecting to home Wi-Fi. Perhaps this functionality is already incorporated in the adapter?

meatpiHQ / wican-fw

Reading from Honda Clarity Plugin #97

86