only first packet from MTProtocol for GLM165-27C

[Sergem]

I used DeviceConnect sample code from "The Bosch GLM/PLR Bluetooth App Kit" to add BoschGLM support into my framework.

I connected CBPeripheral (save it strong var), created MTDataExchengeService:

fileprivate func createDataExchangeService(peripheral: CBPeripheral) -> Bool {
        guard let dataExchangeService = MTDataExchangeService.dataExchangeService(with: peripheral) as? MTDataExchangeService else {
            return false
        }
        self.dataExchangeService = dataExchangeService
        dataExchangeService.delegate = self
        dataExchangeService.isConnectedToGLM = isGLM
        dataExchangeService.serviceUUID = type(of: self).dataServiceUUID.uuidString
        dataExchangeService.charectristicsRXUUID = type(of: self).receiveCharacteristicUUID?.uuidString
        dataExchangeService.charectristicsTXUUID = type(of: self).sendCharacteristicUUID?.uuidString
        dataExchangeService.initialize()
        return true
    }

 and added MTProtocol

func dataExchangeService(_ service: MTDataExchangeService!, didInitilizeWithError error: Error!) {
        if let error = error {
            dlog("[Bosch] Initializitaion callback: \(error)")
            disconnect { _ in }
        } else {
            dlog("[Bosch] Initializitaion callback: init completed, no error.")
            self.mtProtocol = MTProtocol.`protocol`() as! MTProtocol
            self.mtProtocol.connection = service
            self.mtProtocol.delegate = self
            service.delegate = self.mtProtocol
            
            dlog("[Bosch] MTProtocol ready ... \(mtProtocol.isReady)")
            turnOnAutoSync()
        }
    }

turnOnAutoSync is method from AppKit sample and for GLM165 it send the following request:

            let message = MTExchangeDataOutputMessage.message() as! MTExchangeDataOutputMessage
            message.syncControl = MODE_AUTOSYNC_CONTROL_ON
            self.mtProtocol.sendRequest(message)

 But into MTProtocolDelegate:

func `protocol`(_ protocol: MTProtocol!, didReceive message: MTMessage!) {
        dlog("[Bosch] MMProtocol didReceiveMessage: \(message.description)")
        ....
}

I got only 1 packet for 1st measurement after connect, and no more - other measurement nothing posting

[10:01:50.110] [Bosch] MMProtocol didReceiveMessage: MTExchangeDataInputMessage
mode: 0
distReference: 0
errorStatus: 0
laserOn: 0
temperatureWarning: 0
batteryWarning: 0
measurementId: 25
result: 0.000000
component1: 0.000000
component2: 0.000000

When testings DeviceConnect with the same GLM165-27C, I get 2 packets for each measurement, like:

[15:07:19.196] MMProtocol didReceiveMessage: MTExchangeDataInputMessage
mode: 1
distReference: 0
errorStatus: 0
laserOn: 0
temperatureWarning: 0
batteryWarning: 0
measurementId: 17
result: 3.278450
component1: 0.000000
component2: 0.000000
[15:07:23.336] MMProtocol didReceiveMessage: MTExchangeDataInputMessage
mode: 0
distReference: 0
errorStatus: 0
laserOn: 1
temperatureWarning: 0
batteryWarning: 0
measurementId: 17
result: 0.000000
component1: 0.000000
component2: 0.000000

What could be the reason for this problem?

UPD: it looks like first packet with mode, laserOn and resultValue set to zeros is response on turnOnAutoSync (MODE_AUTOSYNC_CONTROL_ON), so my app doesn't get measurements at all

[pdo]

Hi Sergem, sorry for the delay, I checked on this question,

Answer was: Only triggered measurements (with button on device or remote trigger) are transmitted, even if GLM 165-27 C/CG devices are initially in continuous mode by default (Continuous mode: When GLM is on, currently measured distance is always displayed on the GLM). This could give the impression that these values are actually measured and should be automatically transmitted. However, this is not the case - measurements must be triggered and are only then transmitted accordingly.