Android-nRF-Connect-Device-Manager
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Published
20 hours ago •
NordicSemiconductor
NordicSemiconductor
Reading multiple Settings via settingsManager returns same result for different settings
I am trying to read multiple settings from inside a composable from my Device via the settingsManager. I am using the following code
@Composable
fun DetailsScreen(navController: NavController) {
val device = bluetoothViewModel.selectedDevice ?: return
val context = LocalContext.current
fun readSetting(device: BluetoothDevice, settingName: String, settingState: MutableState<String?>) {
val transport = McuMgrBleTransport(context, device)
val settingsManager = SettingsManager(transport)
Log.d("readSetting","Start reading Setting ${settingName}")
settingsManager.read(
settingName,
object : McuMgrCallback<McuMgrSettingsReadResponse> {
override fun onResponse(response: McuMgrSettingsReadResponse) {
if (response.isSuccess) {
val byteArray = response.`val`
settingState.value = byteArray.toString(Charsets.UTF_8)
Log.d("Callback", "onResponse called. Setting: $settingName, Response: ${settingState.value}")
}
}
override fun onError(p0: McuMgrException) {
Toast.makeText(
context,
"Konnte Setting \"$settingName\" nicht lesen: ${p0.message}, ${p0.cause}",
Toast.LENGTH_LONG
).show()
}
})
}
val ssidState = remember { mutableStateOf<String?>(null) }
val passwordState = remember { mutableStateOf<String?>(null) }
// Rufen Sie die Funktion für die gewünschten Einstellungen auf
LaunchedEffect(device) {
readSetting(device, "wifi/ssid", ssidState)
readSetting(device, "wifi/password", passwordState)
}
Surface(modifier = Modifier.fillMaxSize(), color = MaterialTheme.colorScheme.background) {
Column {
if (device != null) {
Column(
modifier = Modifier.weight(1f),
verticalArrangement = Arrangement.Top
) {
Text(text = "${device.name}")
Text(text = "Wifi SSID: ${ssidState.value ?: "Lade..."}")
Text(text = "Wifi Password: ${passwordState.value ?: "Lade..."}")
}
} else {
Text(text = "Kein Gerät ausgewählt")
}
// Button zum Zurückkehren zur vorherigen Ansicht
Button(onClick = { navController.popBackStack() }) {
Text("Zurück")
}
}
}
}
The android logs show the same string result for both requests:
2024-01-27 01:09:18.546 6535-6535 Callback com.example.test D onResponse called. Setting: wifi/ssid, Response: <my-ssid-string>??
2024-01-27 01:09:18.564 6535-6535 Callback com.example.test D onResponse called. Setting: wifi/password, Response: <my-ssid-string>??
I can see that my device returns the right content (printed in the logs):
[00:48:43.819,702] <inf> settings_mgmt: Read Key: wifi/ssid
[00:48:43.819,732] <inf> app_settings: Look for Key: ssid, max_length: 32
[00:48:43.819,793] <inf> app_settings: Found content: <my-ssid-string>, length: 9
[00:48:43.907,989] <inf> settings_mgmt: Read Key: wifi/password
[00:48:43.908,020] <inf> app_settings: Look for Key: password, max_length: 32
[00:48:43.908,050] <inf> app_settings: Found content: <here-is-my-password>, length: 12
Unfortunately both texts in my Surface show the same string (either SSID or password). How do I read multiple settings in parallel?
I was able to solve this by wrapping all readSetting in a suspendCoroutine and make them blocking calls:
suspend fun readSettingString(device: BluetoothDevice, settingName: String): String? =
suspendCoroutine { cont ->
val transport = McuMgrBleTransport(context, device)
val settingsManager = SettingsManager(transport)
val callback = object : McuMgrCallback<McuMgrSettingsReadResponse> {
override fun onResponse(response: McuMgrSettingsReadResponse) {
if (response.isSuccess) {
val byteArray = response.`val`
cont.resume(byteArray.decodeToString(0, byteArray.indexOf(0.toByte())))
}
}
override fun onError(p0: McuMgrException) {
cont.resume(null)
}
}
// Read setting asynchronously
settingsManager.read(settingName, callback)
}
Now I can read one setting after another inside a LaunchedEffect and write the result to my MutableState<String> elements
LaunchedEffect(device) {
ssidState.value = readSettingString(device, "wifi/ssid")
passwordState.value = readSettingString(device, "wifi/password")
serverState.value = readSettingString(device, "lwm2m/server")
}
Thank you ofr sharing.
Out of curiosity, in your first approach, did you enable logs from McuMgrTransport?
You may enable them using the following methods:
https://github.com/NordicSemiconductor/Android-nRF-Connect-Device-Manager/blob/6411d43d547018a722cbd23e4f6bb28b21ac46be/mcumgr-ble/src/main/java/io/runtime/mcumgr/ble/McuMgrBleTransport.java#L286-L298
Or just always return Log.VERBOSE from the second one.
I wonder where the Strings get overriden. Does it happen on the BLE layer, or above.
I tried with enabling all logs via transport.setLoggingEnabled(true). But I don't get much more logs out of it:
024-02-09 21:44:02.241 14035-14035 readSetting com.example.oha_provisioning D Start reading Setting lwm2m/device_type
2024-02-09 21:44:02.245 14035-14035 BluetoothGatt com.example.oha_provisioning D connect() - device: XX:XX:XX:XX:1B:7F, auto: false
2024-02-09 21:44:02.245 14035-14035 BluetoothGatt com.example.oha_provisioning D registerApp()
2024-02-09 21:44:02.245 14035-14035 BluetoothGatt com.example.oha_provisioning D registerApp() - UUID=311726aa-d1d6-4bd8-98c7-af26fab5fe4d
2024-02-09 21:44:02.247 14035-14052 BluetoothGatt com.example.oha_provisioning D onClientRegistered() - status=0 clientIf=9
2024-02-09 21:44:02.248 14035-14035 readSetting com.example.oha_provisioning D Start reading Setting lwm2m/manufacturer
2024-02-09 21:44:02.249 14035-14052 BluetoothGatt com.example.oha_provisioning D onClientConnectionState() - status=0 clientIf=9 device=F2:ED:A3:C8:1B:7F
2024-02-09 21:44:02.250 14035-14052 BluetoothGatt com.example.oha_provisioning D onConfigureMTU() - Device=F2:ED:A3:C8:1B:7F mtu=498 status=0
2024-02-09 21:44:02.250 14035-14035 BluetoothGatt com.example.oha_provisioning D connect() - device: XX:XX:XX:XX:1B:7F, auto: false
2024-02-09 21:44:02.250 14035-14035 BluetoothGatt com.example.oha_provisioning D registerApp()
2024-02-09 21:44:02.250 14035-14035 BluetoothGatt com.example.oha_provisioning D registerApp() - UUID=603a0d74-5e69-4a64-acf3-c59dffd7d974
2024-02-09 21:44:02.251 14035-14052 BluetoothGatt com.example.oha_provisioning D onClientRegistered() - status=0 clientIf=10
2024-02-09 21:44:02.252 14035-14035 readSetting com.example.oha_provisioning D Start reading Setting lwm2m/hardware_version
2024-02-09 21:44:02.254 14035-14035 BluetoothGatt com.example.oha_provisioning D connect() - device: XX:XX:XX:XX:1B:7F, auto: false
2024-02-09 21:44:02.254 14035-14035 BluetoothGatt com.example.oha_provisioning D registerApp()
2024-02-09 21:44:02.254 14035-14035 BluetoothGatt com.example.oha_provisioning D registerApp() - UUID=58016260-ae8b-478f-a6b4-62a88aeb8adb
2024-02-09 21:44:02.254 14035-14052 BluetoothGatt com.example.oha_provisioning D onClientConnectionState() - status=0 clientIf=10 device=F2:ED:A3:C8:1B:7F
2024-02-09 21:44:02.254 14035-14052 BluetoothGatt com.example.oha_provisioning D onConfigureMTU() - Device=F2:ED:A3:C8:1B:7F mtu=498 status=0
2024-02-09 21:44:02.255 14035-14052 BluetoothGatt com.example.oha_provisioning D onClientRegistered() - status=0 clientIf=11
2024-02-09 21:44:02.256 14035-14052 BluetoothGatt com.example.oha_provisioning D onClientConnectionState() - status=0 clientIf=11 device=F2:ED:A3:C8:1B:7F
2024-02-09 21:44:02.256 14035-14052 BluetoothGatt com.example.oha_provisioning D onConfigureMTU() - Device=F2:ED:A3:C8:1B:7F mtu=498 status=0
2024-02-09 21:44:02.603 14035-14149 BluetoothGatt com.example.oha_provisioning D discoverServices() - device: XX:XX:XX:XX:1B:7F
2024-02-09 21:44:02.603 14035-14151 BluetoothGatt com.example.oha_provisioning D discoverServices() - device: XX:XX:XX:XX:1B:7F
2024-02-09 21:44:02.604 14035-14150 BluetoothGatt com.example.oha_provisioning D discoverServices() - device: XX:XX:XX:XX:1B:7F
2024-02-09 21:44:02.610 14035-14052 BluetoothGatt com.example.oha_provisioning D onSearchComplete() = Device=F2:ED:A3:C8:1B:7F Status=0
2024-02-09 21:44:02.612 14035-14035 BluetoothGatt com.example.oha_provisioning D setCharacteristicNotification() - uuid: da2e7828-fbce-4e01-ae9e-261174997c48 enable: true
2024-02-09 21:44:02.614 14035-14051 BluetoothGatt com.example.oha_provisioning D onSearchComplete() = Device=F2:ED:A3:C8:1B:7F Status=0
2024-02-09 21:44:02.615 14035-14052 BluetoothGatt com.example.oha_provisioning D onSearchComplete() = Device=F2:ED:A3:C8:1B:7F Status=0
2024-02-09 21:44:02.621 14035-14035 BluetoothGatt com.example.oha_provisioning D setCharacteristicNotification() - uuid: da2e7828-fbce-4e01-ae9e-261174997c48 enable: true
2024-02-09 21:44:02.628 14035-14035 BluetoothGatt com.example.oha_provisioning D setCharacteristicNotification() - uuid: da2e7828-fbce-4e01-ae9e-261174997c48 enable: true
2024-02-09 21:44:03.188 14035-14035 Callback com.example.oha_provisioning D onResponse called. Setting: lwm2m/device_type, Response: S0-Logger??
2024-02-09 21:44:03.205 14035-14035 Callback com.example.oha_provisioning D onResponse called. Setting: lwm2m/manufacturer, Response: S0-Logger??
2024-02-09 21:44:03.218 14035-14035 Callback com.example.oha_provisioning D onResponse called. Setting: lwm2m/hardware_version, Response: S0-Logger??
2024-02-09 21:44:03.294 14035-14055 BluetoothGatt com.example.oha_provisioning D onConnectionUpdated() - Device=F2:ED:A3:C8:1B:7F interval=9 latency=0 timeout=42 status=0
2024-02-09 21:44:03.294 14035-14051 BluetoothGatt com.example.oha_provisioning D onConnectionUpdated() - Device=F2:ED:A3:C8:1B:7F interval=9 latency=0 timeout=42 status=0
2024-02-09 21:44:03.294 14035-14052 BluetoothGatt com.example.oha_provisioning D onConnectionUpdated() - Device=F2:ED:A3:C8:1B:7F interval=9 latency=0 timeout=42 status=0
2024-02-09 21:44:03.294 14035-14126 BluetoothGatt com.example.oha_provisioning D onConnectionUpdated() - Device=F2:ED:A3:C8:1B:7F interval=9 latency=0 timeout=42 status=0
2024-02-09 21:44:03.295 14035-14127 BluetoothGatt com.example.oha_provisioning D onConnectionUpdated() - Device=F2:ED:A3:C8:1B:7F interval=9 latency=0 timeout=42 status=0
2024-02-09 21:44:03.295 14035-14055 BluetoothGatt com.example.oha_provisioning D onConnectionUpdated() - Device=F2:ED:A3:C8:1B:7F interval=9 latency=0 timeout=42 status=0
2024-02-09 21:44:08.282 14035-14158 BluetoothGatt com.example.oha_provisioning D onConnectionUpdated() - Device=F2:ED:A3:C8:1B:7F interval=36 latency=0 timeout=42 status=0
2024-02-09 21:44:08.282 14035-14055 BluetoothGatt com.example.oha_provisioning D onConnectionUpdated() - Device=F2:ED:A3:C8:1B:7F interval=36 latency=0 timeout=42 status=0
2024-02-09 21:44:08.282 14035-14127 BluetoothGatt com.example.oha_provisioning D onConnectionUpdated() - Device=F2:ED:A3:C8:1B:7F interval=36 latency=0 timeout=42 status=0
2024-02-09 21:44:08.282 14035-14051 BluetoothGatt com.example.oha_provisioning D onConnectionUpdated() - Device=F2:ED:A3:C8:1B:7F interval=36 latency=0 timeout=42 status=0
2024-02-09 21:44:08.282 14035-14126 BluetoothGatt com.example.oha_provisioning D onConnectionUpdated() - Device=F2:ED:A3:C8:1B:7F interval=36 latency=0 timeout=42 status=0
2024-02-09 21:44:08.283 14035-14052 BluetoothGatt com.example.oha_provisioning D onConnectionUpdated() - Device=F2:ED:A3:C8:1B:7F interval=36 latency=0 timeout=42 status=0
I also added the Library as Sourcecode and changed the second method you mentioned to always return Log.VERBOSE, but I still get no additional log output.
Maybe the library has a problem because I am creating an McuMgrBleTransport and SettingsManager instance in each call of readSettings?
After changing the code to use logcat I got the following log output:
2024-02-09 23:05:42.317 20891-20891 readSetting com.example.oha_provisioning D Start reading Setting lwm2m/device_type
2024-02-09 23:05:42.319 20891-20891 McuMgrBleTransport com.example.oha_provisioning V Connecting...
2024-02-09 23:05:42.319 20891-20891 McuMgrBleTransport com.example.oha_provisioning D gatt = device.connectGatt(autoConnect = false, TRANSPORT_LE, LE 1M)
2024-02-09 23:05:42.320 20891-20891 BluetoothGatt com.example.oha_provisioning D connect() - device: XX:XX:XX:XX:1B:7F, auto: false
2024-02-09 23:05:42.320 20891-20891 BluetoothGatt com.example.oha_provisioning D registerApp()
2024-02-09 23:05:42.320 20891-20891 BluetoothGatt com.example.oha_provisioning D registerApp() - UUID=5d440741-ccd3-4593-aaca-83ed27dc3ded
2024-02-09 23:05:42.323 20891-20952 BluetoothGatt com.example.oha_provisioning D onClientRegistered() - status=0 clientIf=9
2024-02-09 23:05:42.323 20891-20891 readSetting com.example.oha_provisioning D Start reading Setting lwm2m/manufacturer
2024-02-09 23:05:42.325 20891-20891 McuMgrBleTransport com.example.oha_provisioning V Connecting...
2024-02-09 23:05:42.325 20891-20891 McuMgrBleTransport com.example.oha_provisioning D gatt = device.connectGatt(autoConnect = false, TRANSPORT_LE, LE 1M)
2024-02-09 23:05:42.325 20891-20912 BluetoothGatt com.example.oha_provisioning D onClientConnectionState() - status=0 clientIf=9 device=F2:ED:A3:C8:1B:7F
2024-02-09 23:05:42.325 20891-20891 BluetoothGatt com.example.oha_provisioning D connect() - device: XX:XX:XX:XX:1B:7F, auto: false
2024-02-09 23:05:42.325 20891-20891 BluetoothGatt com.example.oha_provisioning D registerApp()
2024-02-09 23:05:42.325 20891-20891 BluetoothGatt com.example.oha_provisioning D registerApp() - UUID=de0799dd-115c-4833-a166-cb0040a638c2
2024-02-09 23:05:42.326 20891-20912 BluetoothGatt com.example.oha_provisioning D onConfigureMTU() - Device=F2:ED:A3:C8:1B:7F mtu=498 status=0
2024-02-09 23:05:42.326 20891-20952 BluetoothGatt com.example.oha_provisioning D onClientRegistered() - status=0 clientIf=10
2024-02-09 23:05:42.326 20891-20891 readSetting com.example.oha_provisioning D Start reading Setting lwm2m/hardware_version
2024-02-09 23:05:42.328 20891-20891 McuMgrBleTransport com.example.oha_provisioning V Connecting...
2024-02-09 23:05:42.328 20891-20891 McuMgrBleTransport com.example.oha_provisioning D gatt = device.connectGatt(autoConnect = false, TRANSPORT_LE, LE 1M)
2024-02-09 23:05:42.329 20891-20891 BluetoothGatt com.example.oha_provisioning D connect() - device: XX:XX:XX:XX:1B:7F, auto: false
2024-02-09 23:05:42.329 20891-20891 BluetoothGatt com.example.oha_provisioning D registerApp()
2024-02-09 23:05:42.329 20891-20891 BluetoothGatt com.example.oha_provisioning D registerApp() - UUID=42eec4dd-8b30-4fed-9007-e3bbbbd5a21b
2024-02-09 23:05:42.330 20891-20952 BluetoothGatt com.example.oha_provisioning D onClientConnectionState() - status=0 clientIf=10 device=F2:ED:A3:C8:1B:7F
2024-02-09 23:05:42.330 20891-20912 BluetoothGatt com.example.oha_provisioning D onConfigureMTU() - Device=F2:ED:A3:C8:1B:7F mtu=498 status=0
2024-02-09 23:05:42.332 20891-20912 BluetoothGatt com.example.oha_provisioning D onClientRegistered() - status=0 clientIf=11
2024-02-09 23:05:42.336 20891-20912 BluetoothGatt com.example.oha_provisioning D onClientConnectionState() - status=0 clientIf=11 device=F2:ED:A3:C8:1B:7F
2024-02-09 23:05:42.336 20891-20912 BluetoothGatt com.example.oha_provisioning D onConfigureMTU() - Device=F2:ED:A3:C8:1B:7F mtu=498 status=0
2024-02-09 23:05:42.367 20891-20891 McuMgrBleTransport com.example.oha_provisioning D [Callback] Connection state changed with status: 0 and new state: 2 (CONNECTED)
2024-02-09 23:05:42.367 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Connected to F2:ED:A3:C8:1B:7F
2024-02-09 23:05:42.367 20891-20891 McuMgrBleTransport com.example.oha_provisioning D wait(300)
2024-02-09 23:05:42.367 20891-20891 McuMgrBleTransport com.example.oha_provisioning I MTU changed to: 498
2024-02-09 23:05:42.367 20891-20891 McuMgrBleTransport com.example.oha_provisioning D [Callback] Connection state changed with status: 0 and new state: 2 (CONNECTED)
2024-02-09 23:05:42.368 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Connected to F2:ED:A3:C8:1B:7F
2024-02-09 23:05:42.368 20891-20891 McuMgrBleTransport com.example.oha_provisioning D wait(300)
2024-02-09 23:05:42.368 20891-20891 McuMgrBleTransport com.example.oha_provisioning I MTU changed to: 498
2024-02-09 23:05:42.368 20891-20891 McuMgrBleTransport com.example.oha_provisioning D [Callback] Connection state changed with status: 0 and new state: 2 (CONNECTED)
2024-02-09 23:05:42.368 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Connected to F2:ED:A3:C8:1B:7F
2024-02-09 23:05:42.368 20891-20891 McuMgrBleTransport com.example.oha_provisioning D wait(300)
2024-02-09 23:05:42.368 20891-20891 McuMgrBleTransport com.example.oha_provisioning I MTU changed to: 498
2024-02-09 23:05:42.669 20891-21095 McuMgrBleTransport com.example.oha_provisioning V Discovering services...
2024-02-09 23:05:42.669 20891-21095 McuMgrBleTransport com.example.oha_provisioning D gatt.discoverServices()
2024-02-09 23:05:42.669 20891-21097 McuMgrBleTransport com.example.oha_provisioning V Discovering services...
2024-02-09 23:05:42.669 20891-21097 McuMgrBleTransport com.example.oha_provisioning D gatt.discoverServices()
2024-02-09 23:05:42.669 20891-21096 McuMgrBleTransport com.example.oha_provisioning V Discovering services...
2024-02-09 23:05:42.669 20891-21096 McuMgrBleTransport com.example.oha_provisioning D gatt.discoverServices()
2024-02-09 23:05:42.670 20891-21096 BluetoothGatt com.example.oha_provisioning D discoverServices() - device: XX:XX:XX:XX:1B:7F
2024-02-09 23:05:42.670 20891-21095 BluetoothGatt com.example.oha_provisioning D discoverServices() - device: XX:XX:XX:XX:1B:7F
2024-02-09 23:05:42.670 20891-21097 BluetoothGatt com.example.oha_provisioning D discoverServices() - device: XX:XX:XX:XX:1B:7F
2024-02-09 23:05:42.687 20891-20912 BluetoothGatt com.example.oha_provisioning D onSearchComplete() = Device=F2:ED:A3:C8:1B:7F Status=0
2024-02-09 23:05:42.688 20891-20952 BluetoothGatt com.example.oha_provisioning D onSearchComplete() = Device=F2:ED:A3:C8:1B:7F Status=0
2024-02-09 23:05:42.688 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Services discovered
2024-02-09 23:05:42.689 20891-20891 McuMgrBleTransport com.example.oha_provisioning V Primary service found
2024-02-09 23:05:42.689 20891-20911 BluetoothGatt com.example.oha_provisioning D onSearchComplete() = Device=F2:ED:A3:C8:1B:7F Status=0
2024-02-09 23:05:42.690 20891-20891 McuMgrBleTransport com.example.oha_provisioning D gatt.setCharacteristicNotification(da2e7828-fbce-4e01-ae9e-261174997c48, true)
2024-02-09 23:05:42.690 20891-20891 BluetoothGatt com.example.oha_provisioning D setCharacteristicNotification() - uuid: da2e7828-fbce-4e01-ae9e-261174997c48 enable: true
2024-02-09 23:05:42.696 20891-20891 McuMgrBleTransport com.example.oha_provisioning V Enabling notifications for da2e7828-fbce-4e01-ae9e-261174997c48
2024-02-09 23:05:42.696 20891-20891 McuMgrBleTransport com.example.oha_provisioning D gatt.writeDescriptor(00002902-0000-1000-8000-00805f9b34fb, value=0x01-00)
2024-02-09 23:05:42.698 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Services discovered
2024-02-09 23:05:42.699 20891-20891 McuMgrBleTransport com.example.oha_provisioning V Primary service found
2024-02-09 23:05:42.700 20891-20891 McuMgrBleTransport com.example.oha_provisioning D gatt.setCharacteristicNotification(da2e7828-fbce-4e01-ae9e-261174997c48, true)
2024-02-09 23:05:42.700 20891-20891 BluetoothGatt com.example.oha_provisioning D setCharacteristicNotification() - uuid: da2e7828-fbce-4e01-ae9e-261174997c48 enable: true
2024-02-09 23:05:42.701 20891-20891 McuMgrBleTransport com.example.oha_provisioning V Enabling notifications for da2e7828-fbce-4e01-ae9e-261174997c48
2024-02-09 23:05:42.701 20891-20891 McuMgrBleTransport com.example.oha_provisioning D gatt.writeDescriptor(00002902-0000-1000-8000-00805f9b34fb, value=0x01-00)
2024-02-09 23:05:42.703 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Services discovered
2024-02-09 23:05:42.703 20891-20891 McuMgrBleTransport com.example.oha_provisioning V Primary service found
2024-02-09 23:05:42.704 20891-20891 McuMgrBleTransport com.example.oha_provisioning D gatt.setCharacteristicNotification(da2e7828-fbce-4e01-ae9e-261174997c48, true)
2024-02-09 23:05:42.704 20891-20891 BluetoothGatt com.example.oha_provisioning D setCharacteristicNotification() - uuid: da2e7828-fbce-4e01-ae9e-261174997c48 enable: true
2024-02-09 23:05:42.706 20891-20891 McuMgrBleTransport com.example.oha_provisioning V Enabling notifications for da2e7828-fbce-4e01-ae9e-261174997c48
2024-02-09 23:05:42.706 20891-20891 McuMgrBleTransport com.example.oha_provisioning D gatt.writeDescriptor(00002902-0000-1000-8000-00805f9b34fb, value=0x01-00)
2024-02-09 23:05:42.799 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Data written to descr. 00002902-0000-1000-8000-00805f9b34fb
2024-02-09 23:05:42.800 20891-20891 McuMgrBleTransport com.example.oha_provisioning V Waiting for value change...
2024-02-09 23:05:42.801 20891-20891 McuMgrBleTransport com.example.oha_provisioning V Writing characteristic da2e7828-fbce-4e01-ae9e-261174997c48 (WRITE COMMAND)
2024-02-09 23:05:42.802 20891-20891 McuMgrBleTransport com.example.oha_provisioning D gatt.writeCharacteristic(da2e7828-fbce-4e01-ae9e-261174997c48, value=0x000000010000FF06A0, WRITE COMMAND)
2024-02-09 23:05:42.885 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Data written to descr. 00002902-0000-1000-8000-00805f9b34fb
2024-02-09 23:05:42.886 20891-20891 McuMgrBleTransport com.example.oha_provisioning V Waiting for value change...
2024-02-09 23:05:42.887 20891-20891 McuMgrBleTransport com.example.oha_provisioning V Writing characteristic da2e7828-fbce-4e01-ae9e-261174997c48 (WRITE COMMAND)
2024-02-09 23:05:42.887 20891-20891 McuMgrBleTransport com.example.oha_provisioning D gatt.writeCharacteristic(da2e7828-fbce-4e01-ae9e-261174997c48, value=0x000000010000FF06A0, WRITE COMMAND)
2024-02-09 23:05:42.967 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Sending (34 bytes) Header (Version: 1, Op: 0, Flags: 0, Len: 26, Group: 3, Seq: 0, Command: 0) CBOR {"name":"lwm2m/manufacturer"}
2024-02-09 23:05:42.968 20891-20891 McuMgrBleTransport com.example.oha_provisioning V Writing characteristic da2e7828-fbce-4e01-ae9e-261174997c48 (WRITE COMMAND)
2024-02-09 23:05:42.969 20891-20891 McuMgrBleTransport com.example.oha_provisioning D gatt.writeCharacteristic(da2e7828-fbce-4e01-ae9e-261174997c48, value=0x0800001A00030000BF646E616D65726C776D326D2F6D616E756661637475726572FF, WRITE COMMAND)
2024-02-09 23:05:42.976 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Data written to descr. 00002902-0000-1000-8000-00805f9b34fb
2024-02-09 23:05:42.976 20891-20891 McuMgrBleTransport com.example.oha_provisioning V Waiting for value change...
2024-02-09 23:05:42.978 20891-20891 McuMgrBleTransport com.example.oha_provisioning V Writing characteristic da2e7828-fbce-4e01-ae9e-261174997c48 (WRITE COMMAND)
2024-02-09 23:05:42.978 20891-20891 McuMgrBleTransport com.example.oha_provisioning D gatt.writeCharacteristic(da2e7828-fbce-4e01-ae9e-261174997c48, value=0x000000010000FF06A0, WRITE COMMAND)
2024-02-09 23:05:42.983 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Data written to da2e7828-fbce-4e01-ae9e-261174997c48
2024-02-09 23:05:42.985 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Data written to da2e7828-fbce-4e01-ae9e-261174997c48
2024-02-09 23:05:43.065 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 01-00-00-19-00-00-FF-06-BF-68-62-75-66-5F-73-69-7A-65-19-09-AB-69-62-75-66-5F-63-6F-75-6E-74-04-FF
2024-02-09 23:05:43.067 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 01-00-00-19-00-00-FF-06-BF-68-62-75-66-5F-73-69-7A-65-19-09-AB-69-62-75-66-5F-63-6F-75-6E-74-04-FF
2024-02-09 23:05:43.068 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Wait for value changed complete
2024-02-09 23:05:43.070 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 01-00-00-19-00-00-FF-06-BF-68-62-75-66-5F-73-69-7A-65-19-09-AB-69-62-75-66-5F-63-6F-75-6E-74-04-FF
2024-02-09 23:05:43.071 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 01-00-00-19-00-00-FF-06-BF-68-62-75-66-5F-73-69-7A-65-19-09-AB-69-62-75-66-5F-63-6F-75-6E-74-04-FF
2024-02-09 23:05:43.071 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Wait for value changed complete
2024-02-09 23:05:43.078 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Received Header (Version: 0, Op: 1, Flags: 0, Len: 25, Group: 0, Seq: 255, Command: 6) CBOR {"buf_size":2475,"buf_count":4}
2024-02-09 23:05:43.082 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Received Header (Version: 0, Op: 1, Flags: 0, Len: 25, Group: 0, Seq: 255, Command: 6) CBOR {"buf_size":2475,"buf_count":4}
2024-02-09 23:05:43.125 20891-20891 McuMgrBleTransport com.example.oha_provisioning I SMP reassembly supported with buffer size: 2475 bytes and count: 4
2024-02-09 23:05:43.129 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Received Header (Version: 0, Op: 1, Flags: 0, Len: 25, Group: 0, Seq: 255, Command: 6) CBOR {"buf_size":2475,"buf_count":4}
2024-02-09 23:05:43.131 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Received Header (Version: 0, Op: 1, Flags: 0, Len: 25, Group: 0, Seq: 255, Command: 6) CBOR {"buf_size":2475,"buf_count":4}
2024-02-09 23:05:43.149 20891-20891 McuMgrBleTransport com.example.oha_provisioning I SMP reassembly supported with buffer size: 2475 bytes and count: 4
2024-02-09 23:05:43.151 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Sending (33 bytes) Header (Version: 1, Op: 0, Flags: 0, Len: 25, Group: 3, Seq: 0, Command: 0) CBOR {"name":"lwm2m/device_type"}
2024-02-09 23:05:43.151 20891-20891 McuMgrBleTransport com.example.oha_provisioning V Writing characteristic da2e7828-fbce-4e01-ae9e-261174997c48 (WRITE COMMAND)
2024-02-09 23:05:43.152 20891-20891 McuMgrBleTransport com.example.oha_provisioning D gatt.writeCharacteristic(da2e7828-fbce-4e01-ae9e-261174997c48, value=0x0800001900030000BF646E616D65716C776D326D2F6465766963655F74797065FF, WRITE COMMAND)
2024-02-09 23:05:43.157 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Sending (38 bytes) Header (Version: 1, Op: 0, Flags: 0, Len: 30, Group: 3, Seq: 0, Command: 0) CBOR {"name":"lwm2m/hardware_version"}
2024-02-09 23:05:43.158 20891-20891 McuMgrBleTransport com.example.oha_provisioning V Writing characteristic da2e7828-fbce-4e01-ae9e-261174997c48 (WRITE COMMAND)
2024-02-09 23:05:43.158 20891-20891 McuMgrBleTransport com.example.oha_provisioning D gatt.writeCharacteristic(da2e7828-fbce-4e01-ae9e-261174997c48, value=0x0800001E00030000BF646E616D65766C776D326D2F68617264776172655F76657273696F6EFF, WRITE COMMAND)
2024-02-09 23:05:43.160 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 01-00-00-19-00-00-FF-06-BF-68-62-75-66-5F-73-69-7A-65-19-09-AB-69-62-75-66-5F-63-6F-75-6E-74-04-FF
2024-02-09 23:05:43.161 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 01-00-00-19-00-00-FF-06-BF-68-62-75-66-5F-73-69-7A-65-19-09-AB-69-62-75-66-5F-63-6F-75-6E-74-04-FF
2024-02-09 23:05:43.162 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 01-00-00-19-00-00-FF-06-BF-68-62-75-66-5F-73-69-7A-65-19-09-AB-69-62-75-66-5F-63-6F-75-6E-74-04-FF
2024-02-09 23:05:43.162 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 01-00-00-19-00-00-FF-06-BF-68-62-75-66-5F-73-69-7A-65-19-09-AB-69-62-75-66-5F-63-6F-75-6E-74-04-FF
2024-02-09 23:05:43.162 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Data written to da2e7828-fbce-4e01-ae9e-261174997c48
2024-02-09 23:05:43.164 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Received Header (Version: 0, Op: 1, Flags: 0, Len: 25, Group: 0, Seq: 255, Command: 6) CBOR {"buf_size":2475,"buf_count":4}
2024-02-09 23:05:43.164 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Data written to da2e7828-fbce-4e01-ae9e-261174997c48
2024-02-09 23:05:43.166 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Received Header (Version: 0, Op: 1, Flags: 0, Len: 25, Group: 0, Seq: 255, Command: 6) CBOR {"buf_size":2475,"buf_count":4}
2024-02-09 23:05:43.168 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Received Header (Version: 0, Op: 1, Flags: 0, Len: 25, Group: 0, Seq: 255, Command: 6) CBOR {"buf_size":2475,"buf_count":4}
2024-02-09 23:05:43.170 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Received Header (Version: 0, Op: 1, Flags: 0, Len: 25, Group: 0, Seq: 255, Command: 6) CBOR {"buf_size":2475,"buf_count":4}
2024-02-09 23:05:43.205 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 09-00-00-11-00-03-00-00-BF-63-76-61-6C-4A-53-30-2D-4C-6F-67-67-65-72-00-FF
2024-02-09 23:05:43.205 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 09-00-00-11-00-03-00-00-BF-63-76-61-6C-4A-53-30-2D-4C-6F-67-67-65-72-00-FF
2024-02-09 23:05:43.206 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 09-00-00-11-00-03-00-00-BF-63-76-61-6C-4A-53-30-2D-4C-6F-67-67-65-72-00-FF
2024-02-09 23:05:43.206 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 09-00-00-11-00-03-00-00-BF-63-76-61-6C-4A-53-30-2D-4C-6F-67-67-65-72-00-FF
2024-02-09 23:05:43.208 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Received Header (Version: 1, Op: 1, Flags: 0, Len: 17, Group: 3, Seq: 0, Command: 0) CBOR {"val":"UzAtTG9nZ2VyAA=="}
2024-02-09 23:05:43.209 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Received Header (Version: 1, Op: 1, Flags: 0, Len: 17, Group: 3, Seq: 0, Command: 0) CBOR {"val":"UzAtTG9nZ2VyAA=="}
2024-02-09 23:05:43.211 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Received Header (Version: 1, Op: 1, Flags: 0, Len: 17, Group: 3, Seq: 0, Command: 0) CBOR {"val":"UzAtTG9nZ2VyAA=="}
2024-02-09 23:05:43.213 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Received Header (Version: 1, Op: 1, Flags: 0, Len: 17, Group: 3, Seq: 0, Command: 0) CBOR {"val":"UzAtTG9nZ2VyAA=="}
2024-02-09 23:05:43.231 20891-20891 Callback com.example.oha_provisioning D onResponse called. Setting: lwm2m/device_type, Response: S0-Logger??
2024-02-09 23:05:43.245 20891-20891 Callback com.example.oha_provisioning D onResponse called. Setting: lwm2m/manufacturer, Response: S0-Logger??
2024-02-09 23:05:43.256 20891-20891 Callback com.example.oha_provisioning D onResponse called. Setting: lwm2m/hardware_version, Response: S0-Logger??
2024-02-09 23:05:43.287 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 09-00-00-0A-00-03-00-00-BF-63-76-61-6C-43-56-31-00-FF
2024-02-09 23:05:43.287 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 09-00-00-0A-00-03-00-00-BF-63-76-61-6C-43-56-31-00-FF
2024-02-09 23:05:43.288 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 09-00-00-0A-00-03-00-00-BF-63-76-61-6C-43-56-31-00-FF
2024-02-09 23:05:43.288 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Notification received from da2e7828-fbce-4e01-ae9e-261174997c48, value: (0x) 09-00-00-0A-00-03-00-00-BF-63-76-61-6C-43-56-31-00-FF
2024-02-09 23:05:43.290 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Received Header (Version: 1, Op: 1, Flags: 0, Len: 10, Group: 3, Seq: 0, Command: 0) CBOR {"val":"VjEA"}
2024-02-09 23:05:43.291 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Received Header (Version: 1, Op: 1, Flags: 0, Len: 10, Group: 3, Seq: 0, Command: 0) CBOR {"val":"VjEA"}
2024-02-09 23:05:43.292 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Received Header (Version: 1, Op: 1, Flags: 0, Len: 10, Group: 3, Seq: 0, Command: 0) CBOR {"val":"VjEA"}
2024-02-09 23:05:43.293 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Received Header (Version: 1, Op: 1, Flags: 0, Len: 10, Group: 3, Seq: 0, Command: 0) CBOR {"val":"VjEA"}
2024-02-09 23:05:43.388 20891-21106 BluetoothGatt com.example.oha_provisioning D onConnectionUpdated() - Device=F2:ED:A3:C8:1B:7F interval=9 latency=0 timeout=42 status=0
2024-02-09 23:05:43.389 20891-21105 BluetoothGatt com.example.oha_provisioning D onConnectionUpdated() - Device=F2:ED:A3:C8:1B:7F interval=9 latency=0 timeout=42 status=0
2024-02-09 23:05:43.389 20891-20952 BluetoothGatt com.example.oha_provisioning D onConnectionUpdated() - Device=F2:ED:A3:C8:1B:7F interval=9 latency=0 timeout=42 status=0
2024-02-09 23:05:43.389 20891-20913 BluetoothGatt com.example.oha_provisioning D onConnectionUpdated() - Device=F2:ED:A3:C8:1B:7F interval=9 latency=0 timeout=42 status=0
2024-02-09 23:05:43.389 20891-20911 BluetoothGatt com.example.oha_provisioning D onConnectionUpdated() - Device=F2:ED:A3:C8:1B:7F interval=9 latency=0 timeout=42 status=0
2024-02-09 23:05:43.389 20891-20912 BluetoothGatt com.example.oha_provisioning D onConnectionUpdated() - Device=F2:ED:A3:C8:1B:7F interval=9 latency=0 timeout=42 status=0
2024-02-09 23:05:43.390 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Connection parameters updated (interval: 11.25ms, latency: 0, timeout: 420ms)
2024-02-09 23:05:43.390 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Connection parameters updated (interval: 11.25ms, latency: 0, timeout: 420ms)
2024-02-09 23:05:43.390 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Connection parameters updated (interval: 11.25ms, latency: 0, timeout: 420ms)
2024-02-09 23:05:43.391 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Connection parameters updated (interval: 11.25ms, latency: 0, timeout: 420ms)
2024-02-09 23:05:43.391 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Connection parameters updated (interval: 11.25ms, latency: 0, timeout: 420ms)
2024-02-09 23:05:43.391 20891-20891 McuMgrBleTransport com.example.oha_provisioning I Connection parameters updated (interval: 11.25ms, latency: 0, timeout: 420ms)
After changing my code to create only a single instance of SettingsMananger the responses are now handled correctly:
fun DetailsScreen(navController: NavController, bluetoothViewModel: BluetoothViewModel) {
val device = bluetoothViewModel.selectedDevice ?: return
val context = LocalContext.current
var devName = remember { mutableStateOf<String?>(null) }
var devManufacturer = remember { mutableStateOf<String?>(null) }
var devHardwareVersion = remember { mutableStateOf<String?>(null) }
var ssidState = remember { mutableStateOf<String?>(null) }
var passwordState = remember { mutableStateOf<String?>(null) }
var serverState = remember { mutableStateOf<String?>(null) }
var techState = remember { mutableStateOf<UInt>(0u) }
val transport = McuMgrBleTransport(context, device)
val settingsManager = SettingsManager(transport)
// ... some other code
fun SettingsManager.readSetting(settingName: String, state: MutableState<String?>) {
Log.d("readSetting","Start reading Setting ${settingName}")
read(
settingName,
object : McuMgrCallback<McuMgrSettingsReadResponse> {
override fun onResponse(response: McuMgrSettingsReadResponse) {
if (response.isSuccess) {
val byteArray = response.`val`
state.value = byteArray.toString(Charsets.UTF_8)
Log.d("readSetting", "onResponse called. Setting: $settingName, Response: ${state.value}")
}
}
override fun onError(p0: McuMgrException) {
Log.e("readSetting", "Could not read setting $settingName. Error: ${p0.message}")
Toast.makeText(
context,
"Konnte Setting \"$settingName\" nicht lesen: ${p0.message}, ${p0.cause}",
Toast.LENGTH_LONG
).show()
}
})
}
fun SettingsManager.readSetting(settingName: String, settingState: MutableState<UInt>) {
val callback = object : McuMgrCallback<McuMgrSettingsReadResponse> {
override fun onResponse(response: McuMgrSettingsReadResponse) {
if (response.isSuccess) {
val byteArray = response.`val`
settingState.value = byteArray.toUInt()
Log.d("readSetting", "onResponse called. Setting: $settingName, Response: ${byteArray.toHex()}")
}
}
override fun onError(p0: McuMgrException) {
Log.e("readSetting", "Could not read setting $settingName. Error: ${p0.message}")
Toast.makeText(
context,
"Konnte Setting \"$settingName\" nicht lesen: ${p0.message}, ${p0.cause}",
Toast.LENGTH_LONG
).show()
}
}
// Read setting asynchronously
read(settingName, callback)
}
// ... some other code here
LaunchedEffect(device){
settingsManager.readSetting("lwm2m/device_type", devName)
settingsManager.readSetting("lwm2m/manufacturer", devManufacturer)
settingsManager.readSetting("lwm2m/hardware_version", devHardwareVersion)
settingsManager.readSetting("wifi/ssid", ssidState)
settingsManager.readSetting("wifi/password", passwordState)
settingsManager.readSetting("lwm2m/server", serverState)
settingsManager.readSetting("tech/imp_per_kwh", techState)
}
}
It should be documented somewhere that you must not create multiple instances of SettingsMananger. Or better: use some kind of Singleton pattern.