Datalog Format on VESC Tool Mobile

ESK8 Electronics
1

The Mobile version of VESC tool has data logging (looks to be recent?).

It outputs a csv but without any headers and I wasn’t able to find it documented anywhere so I looked into the source code to figure it out. For anyone else who stumbles on this problem this is the format:

msecsSinceStartOfDay v_in temp_mos temp_mos_1 temp_mos_2 temp_mos_3 temp_motor current_motor current_in id iq rpm duty_now amp_hours amp_hours_charged watt_hours watt_hours_charged tachometer tachometer_abs position fault_code vesc_id
68209883 38.1 27.4 0 0 0 -81 0 0 0 0 0 0 0 0 0 0 0 0 235.8 0 4
The code: 
    if (mRtLogFile.isOpen()) {
        auto t = QTime::currentTime();
        QTextStream os(&mRtLogFile);
        os << t.msecsSinceStartOfDay() << ";";
        os << v.v_in << ";";
        os << v.temp_mos << ";";
        os << v.temp_mos_1 << ";";
        os << v.temp_mos_2 << ";";
        os << v.temp_mos_3 << ";";
        os << v.temp_motor << ";";
        os << v.current_motor << ";";
        os << v.current_in << ";";
        os << v.id << ";";
        os << v.iq << ";";
        os << v.rpm << ";";
        os << v.duty_now << ";";
        os << v.amp_hours << ";";
        os << v.amp_hours_charged << ";";
        os << v.watt_hours << ";";
        os << v.watt_hours_charged << ";";
        os << v.tachometer << ";";
        os << v.tachometer_abs << ";";
        os << v.position << ";";
        os << v.fault_code << ";";
        os << v.vesc_id << ";";
        os << "\n";
        os.flush();
    }

I’m using the flipsky nrf dongle:

I would really love to use metr but I guess that is only compatible with their dongle. Akmanaic didn’t detect it either. If anyone knows how to make it work with an app that has GPS would be awesome, thanks!

1 Like
2

Well I guess I know why nobody uses this or knows about it because it only works when the phone is unlocked. OKAY.

1 Like
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Thanks for posting this. I gave the datalogging a go but never got around to trying to figure out the csv.

And yes the datalogging is really new.

4

It’s kind of useless while riding because the app has to be open. Could be good for diagnostics on the bench…

I hope some of the other apps will build in support for this module.