ANT LEV Read Payload

Hopefully this should help:

[https://github.com/maca88/E-Bike-Edge-MultiField]

Specifically:

[https://github.com/maca88/E-Bike-Edge-MultiField/blob/master/Source/EBikeEdgeMultiField/source/EBikeSensor.mc]

Yes, that is great.

Thanks a lot 

from where have you received all this information. Is there an ANT document explaining this?
I am also search from the Power produced by the motor [W] an the human power produced by the biker [W]
This is shown in the Fazua Mobile APP, but not listed in your code.

It’s not my code, I found it using google. I think the person who owns the repo is here tho maca88

Hi Seli17 
I‘m trying to write a datafield for Ant+ LEV for my Specialized Levo 2019. All I want is to connect to bike and read ID, battery status and support level. Unfortunately I did not manage so far to come along.
I downloaded Ant+_LEV from ThisisAnt and I will attach it here. Maybe it is of any help for you.

In revers I would be very grateful if you could share your code which would certainly help me to get along…

Thanks!

ANT+_LEV.pdf

Hi MC,

First step:
I took the Moxy Sample of Garmin and changed the deviceType to 20
So I could connect my Fenix to my Fazua Bike.
MOSensor.mc

  //const DEVICE_TYPE = 31; //Muscle Oxygen
    //const DEVICE_TYPE = 11; //Bike Power
    const DEVICE_TYPE = 20; //Light Electric Vehicle
  

Second step:

I read the payload according to 
https://github.com/maca88/E-Bike-Edge-MultiField/blob/master/Source/EBikeEdgeMultiField/source/EBikeSensor.mc

for the moment, (I am really at the beginning) I did for Battery Charge only:

function parsePage3(payload, data) {
            data.batteryCharge = parseBatteryCharge (payload);
        }


hidden function parseBatteryCharge(payload) {
        return (payload[1] & 0x7F); // Battery SOC (State of Charge)
}

function onMessage(msg) {
        // Parse the payload
        var payload = msg.getPayload();

        if( Ant.MSG_ID_BROADCAST_DATA == msg.messageId ) {
            var pageNumber = (payload[0] & 0xFF);
            if (pageNumber == 1) 
            {
            //if( MuscleOxygenDataPage.PAGE_NUMBER == (payload[0].toNumber() & 0xFF) ) {
                // Were we searching?
                if (searching) {
                    searching = false;
                    // Update our device configuration primarily to see the device number of the sensor we paired to
                    deviceCfg = GenericChannel.getDeviceConfig();
                }
                var dp = new MuscleOxygenDataPage();
                
                //data.batteryTemperature = parseBatteryTemperature(payload);
                dp.parse(payload, data);
                // Check if the data has changed
                if (pastEventCount != data.eventCount) {
                    pastEventCount = data.eventCount;
                }
            } else if (pageNumber == 3) {
                var dp = new MuscleOxygenDataPage();
                dp.parsePage3(payload, data);
                //data.batteryCharge = parseBatteryCharge (payload);
            }
        } else if(Ant.MSG_ID_CHANNEL_RESPONSE_EVENT == msg.messageId) {
            if (Ant.MSG_ID_RF_EVENT == (payload[0] & 0xFF)) {
                if (Ant.MSG_CODE_EVENT_CHANNEL_CLOSED == (payload[1] & 0xFF)) {
                    // Channel closed, re-open
                    open();
                } else if( Ant.MSG_CODE_EVENT_RX_FAIL_GO_TO_SEARCH  == (payload[1] & 0xFF) ) {
                    searching = true;
                }
            } else {
                //It is a channel response.
            }
        }
    }

It is only proof of concept, it works with FAZUA Ride 60 and Fenix 6X but should also work with your bike!
Hope this helps you

I am interested in BikePower and MotorPower, but this is not in LEV but shown on the Fazua App.
There is only Assist in %, but this is only half of what I need.
I will try to ask FAZUA where they transmit this information.

Many Thanks Seli17!
I‘m also working on Moxy sample base, but I‘m afraid, I had deleted too much of code I was thinking I do not need .
So - back to the start!

Regarding rider power: my Spesh Levo sends rider(bike) power as „normal“ sensor. I get bikepower and cadence simply by searching and connecting my Levo as power sensor. No Ant programming necessary - only activity.info.currentPower and currentCadence

I will report back!

Hi Seli17

I managed to get batterySOC, assistMode, totalAssistModes to work.

I followed your steps, but simply parse the variables inside of onMessage() and then I pass it via function call from/to MoxyField.mc
I tested the output on my Edge 1040 and with my Spesh Levo - it works!

    public function onMessage(msg as Message) as Void {
        // Parse the payload
        var payload = msg.getPayload();
        //if ((Ant.MSG_ID_BROADCAST_DATA == msg.messageId) && ($.PAGE_NUMBER == (payload[0].toNumber() & 0xFF))) {
        if ( Ant.MSG_ID_BROADCAST_DATA == msg.messageId) {
            var pageNumber = (payload[0] & 0xFF);
            if (pageNumber == 1) {
                // Were we searching?
                if (_searching) {
                    _searching = false;
                    // Update our device configuration primarily to see the device number of the sensor we paired to
                    _deviceCfg = GenericChannel.getDeviceConfig();
                }
                _data.parse(msg.getPayload());
                // Update the event count
                _pastEventCount = _data.getEventCount();
            } else if (pageNumber == 3) {
                batSOC = (payload[1] & 0x7F);       //battery Status
                travelMode = (payload[2] >> 3 & 0x07);      //Assist Mode
            } else if (pageNumber == 5) {
                totalAssistModes = (payload[2] >> 3) & 0x07; // Number of Assist modes supported
            } else if (pageNumber == 80) {
                manufacturerId = (payload[5] << 8) | payload[4]; // Manufacturer ID
            }             

        } else if ((Ant.MSG_ID_CHANNEL_RESPONSE_EVENT == msg.messageId) && (Ant.MSG_ID_RF_EVENT == (payload[0] & 0xFF))) {
            if (Ant.MSG_CODE_EVENT_CHANNEL_CLOSED == (payload[1] & 0xFF)) {
                // Channel closed, re-open
                open();
            } else if (Ant.MSG_CODE_EVENT_RX_FAIL_GO_TO_SEARCH == (payload[1] & 0xFF)) {
                _searching = true;
            }
        }
    }

Next step:
reduce and rename the Moxy datafield to my needs for my LEV datafield.

A question: Does the datafield work in the simulator if a ANT dongle is connected to the PC?
Problem for me to test: my PC is upstairs and my eBike downstairs. Too wide range for connection I assume...

All tests I do are with the datafield sideloaded to the Edge - it's a litte complicated.

I added activity.info.currentPower and currentCadence to my BigFont DataField and have now to add the Moxy (LEV) stuff to it. 
What Edge do you have?

I have no ANT dongle, I am testing directly with my Fenix to my bike, not very confortable!
=> so same as you

Currently I‘m using an Edge 1040.

I ordered a 10 m USB extension cable to bring the dongle near to my bike. Should it really work - there is another problem: my bike turns off after 5 minutes of inactivity