Livall P1 cadence sensor connectivity

Johan Frisk shared this problem 5 years ago
Closed

I recently bought a Livall P1 cadence sensor to track my cadence in Locus maps in track recording. I can connect the sensor to the app but doesn't get any valid data. Is there any chanse to get this working? I really likes Locus maps and whant this to be my single program for track recording.


Thanks in advance.

Best Answer
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Good day Johan,

thanks for a link, it was helpfull. Mainly part "

I contacted Livall and they currently as a company policy they do not appear to support any third party apps". As you may read, Livall for unknown reason use some private technique to communicate between device and sensors. So I'm sorry, I cannot help here now.

If more people will be interested in support of this sensor, please vote here. I may then contact Livall creators is there is any option. Thanks for understanding.

Replies (12)

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Good day Johan,

we are talking about this sensor: https://www.amazon.com/gp/product/B01FCD9OCY/ref=s9_acsd_hps_bw_c_x_10 ?

Have to ask

- are You using latest Locus Map version 3.18.6?

- have You tried this sensor with different application, not just with Locus Map (just for sure)?

- did You try to connect it over menu > Bluetooth Manager > Bicycle speed & cadence (BT 4.0)?

- Locus connects to this sensor and You see? Only a label "No valid data"?

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Good day,

Yes, exactly that one.


I was using 3.18.6 but I also think I've tried to some beta, I don't know exacly which one, not the one today or yesterday.


I just have Endomondo and Locus, Endomondo doesn't seem to have any support for this kind of sensors.


I did connect it over menu > Bluetooth Manager > Bicycle speed & cadence (BT 4.0)

Locus connects to the sensor med I got the lable "No valid data" I tried to read a little about the sensor and it seems like they have some own communication in some way, But I've hard to see that kind of data to be encrypted or enything like that.

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Good day Johan,

interesting to read, that some company creates it's own communication system for BT 4.0+, anyway it's possible and if it's true, then it will explain this problem.


Anyway may you please try to install this Locus Map Free version and try this feature again? After you will see for a few seconds this "No valid data", close Locus and in "Locus/logs" directory will be txt files. Send them to me (you may attach them here as "zip" files).


Thank you.

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Good day,

I can make a try with that version! I have 3.18.6.5 installed, can I do the test with that one or is it something special with the one you linked to?


Best regards

/Johan

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Good day, linked version is different. There is enabled some more logging for Bluetooth devices, so please create a log with special version from my previous post. Thank you.

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Sorry for the delay, didn't have time to test during the weekend.


I had some problems to search and connect the sensor yesterday but I hope i got some data. Locus found ~10 BT connections, all without name when I started ride home yesterday, but think I finaly found the right one. The sensor is disabled untill it starts moving while it's a bit hard to connect in advance.

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Good day Johan,

thank You for a logs. Unfortunately only information there is that Locus connected to certain device and nothing more ... no information about receiving device configuration, device data, nothing. Interesting.

You wrote that you read somewhere, that this device has some own system for communication. If this is true, I'm worried I won't be able to help. Do you have web page where I may read more about it? Thank you.

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Good day,

I toked a look and also thougt so but didn't have any good program to check the logs. I also tried yesterday but didn't get any connection at all then either. Previously when I tried it seemed to be connected but didn't get any valid data.

Think it was this thread I read about there own communication.

https://support.strava.com/hc/en-us/community/posts/208861138-New-cadence-sensor-Livall

I work at distance this week so I doesn't have my bike, and sensor close to me so I can't try more at the moment but I'll try to test some more in the end of the week or during weekend.

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Good day Johan,

thanks for a link, it was helpfull. Mainly part "

I contacted Livall and they currently as a company policy they do not appear to support any third party apps". As you may read, Livall for unknown reason use some private technique to communicate between device and sensors. So I'm sorry, I cannot help here now.

If more people will be interested in support of this sensor, please vote here. I may then contact Livall creators is there is any option. Thanks for understanding.

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I finnaly had time to get an connection, but was after my cycling so diden't move during the log file, but did rotate my crankset some turns backwards.


I wasen't sure about how the logfile worked so I start a track recording and moved away from the bike before stopping and closed the app so I probably did lost the connection then.

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Good day Johan,

thank You for a log. This one contains perfectly visible list of communication between Locus and your sensor. Seems that Locus was able to read sensor name and it's battery status, but nothing more. It really looks that Lival creators really use some specific communication, which is not used as standard - by all other similar sensors.


So I'm sorry. For now I cannot help. When they publish description for communication between device and sensor to public, I'll be able to help.

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Thank you a lot for checking and evaluating the data and possibilities! I've mailed to Livall and asked about some communication specification or something like. It seems like a kind of useless sensor if it isn't compatible with the "standard apps"

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