Hey Michael

thank you for your quick response.

So it seems that I opened Pandoras box :-)

As you wrote, I thought it would be a good idea to access the VW OBD 
gateway over bluetooth as I now just tap into the VW comfort CAN from 
under the passenger seat. But as bluetooth is in such an alpha state at 
the moment, I will focus now on the next step to get the remote climate 
control managed over the comfort CAN rather than over the OBD gateway. 
This is a big reverse engineering task, but seems still easier 
achievable than rewriting the OVMS bluetooth part.

But I will keep bluetooth in mind for the future. It would be just great 
to have it working ...

Greetinx and take care.

Chris

Am Freitag, den 27.03.2020, 21:22 +0100 schrieb Michael Balzer:
Chris,

sorry for the outdated bluetooth sdkconfig and lack of info on this.

The bluetooth component development was done by Mark. It's been stopped at an early stage without usable functionality IIRC. It was supposed to pair, but
nothing else. It used up a lot of memory we needed for other tasks, and there was no real need for this, so we excluded it from the standard build.

It's been stuck there since mid 2018, and the IDF API may have changed in the meantime. I think the IDF even introduced a whole new driver approach later on, so
the component may need a complete rewrite.

You're welcome to work on that, but maybe there are better options for what you'd like to do, or you can work with a simplified approach.

If I understood you correctly, you would like to access the UpMiiGo's main CAN bus via a bluetooth OBD2 dongle, because the main CAN isn't available at your
preferred OVMS mounting point.

My own experiences with bluetooth OBD2 dongles were all bad, very slow and unreliable, unsuitable for live CAN data. That's been years ago, maybe the situation
has changed, but I still would prefer a cable, also because I don't trust these cheap bluetooth (or wifi) devices to be secure. Isn't the CAN bus reachable
somewhere near?

Regards,
Michael


Am 27.03.20 um 19:57 schrieb Chris van der Meijden:


Hi all

To make my question a bit more "transparent" I put templates of my
bluetooth Kconfig and sdkconfig here

https://github.com/devmarxx/Open-Vehicle-Monitoring-System-3/tree/maste
r/vehicle/OVMS.V3/support

in my github. The templates both end on .devmarxx

Good health to everyone and take care!

Greetinx

Chris

Am Donnerstag, den 26.03.2020, 20:46 +0100 schrieb Chris van der
Meijden:


Dear all

I'm struggling with the activation of the bluetooth functionality
with
the recent code.

The sdkconfig.bluetooth.hw31 will not compile at all.

I found three major problems here.

1. Mongoose SSL is needed
2. Support for the 8MB RAM version is needed (not included in
sdkconfig.bluetooth.hw31!)
3. CONFIG_BTDM_CONTROLLER_BR_EDR_SCO_DATA_PATH_EFF is needed for our
special esp-idf situation

By doing a simple diff I could solve 1, but overlooked Nr. 2. And
that
was lethal. It brought my OVMS in a boot loop after I installed the
fresh compiled ovms3.bin. But I got here great help from Thomas
(Thanx!), who pointed to the problem and helped me out on the
sdkconfig
settings.

For Nr. 3 I made a dirty workaround by adding

config BTDM_CONTROLLER_BR_EDR_SCO_DATA_PATH_EFF
    int "Should be 0, can also be 1"
    default 0
    depends on OVMS
    help
        Workaround to make bluetooth compile with our special
        esp-idf situation. 

to the KConfig.

But all efforts didn't bring a postive result. The image compiles and
boots now, but we can't activate bluetooth. We get the Error

bt: init controller failed: ESP_ERR_NO_MEM

So I would like to ask, if anybody has a working, recent, bluetooth
image and if so what does it need? Any help on this is highly
welcome.

Here the diff of my bluetooth sdkconfig to the standard sdkconfig
without bluetooth:

137,146c137,138
< CONFIG_BT_ENABLED=y
< 
< #
< # Bluetooth controller
< #
< CONFIG_BTDM_CONTROLLER_MODE_BLE_ONLY=y
< CONFIG_BTDM_CONTROLLER_MODE_BR_EDR_ONLY=
< CONFIG_BTDM_CONTROLLER_MODE_BTDM=
< CONFIG_BTDM_CONTROLLER_BLE_MAX_CONN=3
< CONFIG_BTDM_CONTROLLER_BLE_MAX_CONN_EFF=3
---


CONFIG_BT_ENABLED=
CONFIG_BTDM_CONTROLLER_BLE_MAX_CONN_EFF=0


149,150d140
< CONFIG_BTDM_CONTROLLER_PINNED_TO_CORE_0=y
< CONFIG_BTDM_CONTROLLER_PINNED_TO_CORE_1=
152,365c142
< CONFIG_BTDM_CONTROLLER_HCI_MODE_VHCI=y
< CONFIG_BTDM_CONTROLLER_HCI_MODE_UART_H4=
< 
< #
< # MODEM SLEEP Options
< #
< CONFIG_BTDM_CONTROLLER_MODEM_SLEEP=
< CONFIG_BLE_SCAN_DUPLICATE=y
< CONFIG_SCAN_DUPLICATE_BY_DEVICE_ADDR=y
< CONFIG_SCAN_DUPLICATE_BY_ADV_DATA=
< CONFIG_SCAN_DUPLICATE_BY_ADV_DATA_AND_DEVICE_ADDR=
< CONFIG_SCAN_DUPLICATE_TYPE=0
< CONFIG_DUPLICATE_SCAN_CACHE_SIZE=20
< CONFIG_BLE_MESH_SCAN_DUPLICATE_EN=
< CONFIG_BTDM_CONTROLLER_FULL_SCAN_SUPPORTED=
< CONFIG_BLE_ADV_REPORT_FLOW_CONTROL_SUPPORTED=y
< CONFIG_BLE_ADV_REPORT_FLOW_CONTROL_NUM=100
< CONFIG_BLE_ADV_REPORT_DISCARD_THRSHOLD=20
< CONFIG_BLUEDROID_ENABLED=y
< CONFIG_BLUEDROID_PINNED_TO_CORE_0=y
< CONFIG_BLUEDROID_PINNED_TO_CORE_1=
< CONFIG_BLUEDROID_PINNED_TO_CORE=0
< CONFIG_BTC_TASK_STACK_SIZE=6144
< CONFIG_BTU_TASK_STACK_SIZE=4096
< CONFIG_BLUEDROID_MEM_DEBUG=
< CONFIG_CLASSIC_BT_ENABLED=
< CONFIG_GATTS_ENABLE=y
< CONFIG_GATTS_SEND_SERVICE_CHANGE_MANUAL=
< CONFIG_GATTS_SEND_SERVICE_CHANGE_AUTO=y
< CONFIG_GATTS_SEND_SERVICE_CHANGE_MODE=0
< CONFIG_GATTC_ENABLE=
< CONFIG_BLE_SMP_ENABLE=y
< CONFIG_SMP_SLAVE_CON_PARAMS_UPD_ENABLE=
< CONFIG_BT_STACK_NO_LOG=
< 
< #
< # BT DEBUG LOG LEVEL
< #
< CONFIG_HCI_TRACE_LEVEL_NONE=
< CONFIG_HCI_TRACE_LEVEL_ERROR=
< CONFIG_HCI_TRACE_LEVEL_WARNING=y
< CONFIG_HCI_TRACE_LEVEL_API=
< CONFIG_HCI_TRACE_LEVEL_EVENT=
< CONFIG_HCI_TRACE_LEVEL_DEBUG=
< CONFIG_HCI_TRACE_LEVEL_VERBOSE=
< CONFIG_HCI_INITIAL_TRACE_LEVEL=2
< CONFIG_BTM_TRACE_LEVEL_NONE=
< CONFIG_BTM_TRACE_LEVEL_ERROR=
< CONFIG_BTM_TRACE_LEVEL_WARNING=y
< CONFIG_BTM_TRACE_LEVEL_API=
< CONFIG_BTM_TRACE_LEVEL_EVENT=
< CONFIG_BTM_TRACE_LEVEL_DEBUG=
< CONFIG_BTM_TRACE_LEVEL_VERBOSE=
< CONFIG_BTM_INITIAL_TRACE_LEVEL=2
< CONFIG_L2CAP_TRACE_LEVEL_NONE=
< CONFIG_L2CAP_TRACE_LEVEL_ERROR=
< CONFIG_L2CAP_TRACE_LEVEL_WARNING=y
< CONFIG_L2CAP_TRACE_LEVEL_API=
< CONFIG_L2CAP_TRACE_LEVEL_EVENT=
< CONFIG_L2CAP_TRACE_LEVEL_DEBUG=
< CONFIG_L2CAP_TRACE_LEVEL_VERBOSE=
< CONFIG_L2CAP_INITIAL_TRACE_LEVEL=2
< CONFIG_RFCOMM_TRACE_LEVEL_NONE=
< CONFIG_RFCOMM_TRACE_LEVEL_ERROR=
< CONFIG_RFCOMM_TRACE_LEVEL_WARNING=y
< CONFIG_RFCOMM_TRACE_LEVEL_API=
< CONFIG_RFCOMM_TRACE_LEVEL_EVENT=
< CONFIG_RFCOMM_TRACE_LEVEL_DEBUG=
< CONFIG_RFCOMM_TRACE_LEVEL_VERBOSE=
< CONFIG_RFCOMM_INITIAL_TRACE_LEVEL=2
< CONFIG_SDP_TRACE_LEVEL_NONE=
< CONFIG_SDP_TRACE_LEVEL_ERROR=
< CONFIG_SDP_TRACE_LEVEL_WARNING=y
< CONFIG_SDP_TRACE_LEVEL_API=
< CONFIG_SDP_TRACE_LEVEL_EVENT=
< CONFIG_SDP_TRACE_LEVEL_DEBUG=
< CONFIG_SDP_TRACE_LEVEL_VERBOSE=
< CONFIG_SDP_INITIAL_TRACE_LEVEL=2
< CONFIG_GAP_TRACE_LEVEL_NONE=
< CONFIG_GAP_TRACE_LEVEL_ERROR=
< CONFIG_GAP_TRACE_LEVEL_WARNING=y
< CONFIG_GAP_TRACE_LEVEL_API=
< CONFIG_GAP_TRACE_LEVEL_EVENT=
< CONFIG_GAP_TRACE_LEVEL_DEBUG=
< CONFIG_GAP_TRACE_LEVEL_VERBOSE=
< CONFIG_GAP_INITIAL_TRACE_LEVEL=2
< CONFIG_BNEP_TRACE_LEVEL_NONE=
< CONFIG_BNEP_TRACE_LEVEL_ERROR=
< CONFIG_BNEP_TRACE_LEVEL_WARNING=y
< CONFIG_BNEP_TRACE_LEVEL_API=
< CONFIG_BNEP_TRACE_LEVEL_EVENT=
< CONFIG_BNEP_TRACE_LEVEL_DEBUG=
< CONFIG_BNEP_TRACE_LEVEL_VERBOSE=
< CONFIG_BNEP_INITIAL_TRACE_LEVEL=2
< CONFIG_PAN_TRACE_LEVEL_NONE=
< CONFIG_PAN_TRACE_LEVEL_ERROR=
< CONFIG_PAN_TRACE_LEVEL_WARNING=y
< CONFIG_PAN_TRACE_LEVEL_API=
< CONFIG_PAN_TRACE_LEVEL_EVENT=
< CONFIG_PAN_TRACE_LEVEL_DEBUG=
< CONFIG_PAN_TRACE_LEVEL_VERBOSE=
< CONFIG_PAN_INITIAL_TRACE_LEVEL=2
< CONFIG_A2D_TRACE_LEVEL_NONE=
< CONFIG_A2D_TRACE_LEVEL_ERROR=
< CONFIG_A2D_TRACE_LEVEL_WARNING=y
< CONFIG_A2D_TRACE_LEVEL_API=
< CONFIG_A2D_TRACE_LEVEL_EVENT=
< CONFIG_A2D_TRACE_LEVEL_DEBUG=
< CONFIG_A2D_TRACE_LEVEL_VERBOSE=
< CONFIG_A2D_INITIAL_TRACE_LEVEL=2
< CONFIG_AVDT_TRACE_LEVEL_NONE=
< CONFIG_AVDT_TRACE_LEVEL_ERROR=
< CONFIG_AVDT_TRACE_LEVEL_WARNING=y
< CONFIG_AVDT_TRACE_LEVEL_API=
< CONFIG_AVDT_TRACE_LEVEL_EVENT=
< CONFIG_AVDT_TRACE_LEVEL_DEBUG=
< CONFIG_AVDT_TRACE_LEVEL_VERBOSE=
< CONFIG_AVDT_INITIAL_TRACE_LEVEL=2
< CONFIG_AVCT_TRACE_LEVEL_NONE=
< CONFIG_AVCT_TRACE_LEVEL_ERROR=
< CONFIG_AVCT_TRACE_LEVEL_WARNING=y
< CONFIG_AVCT_TRACE_LEVEL_API=
< CONFIG_AVCT_TRACE_LEVEL_EVENT=
< CONFIG_AVCT_TRACE_LEVEL_DEBUG=
< CONFIG_AVCT_TRACE_LEVEL_VERBOSE=
< CONFIG_AVCT_INITIAL_TRACE_LEVEL=2
< CONFIG_AVRC_TRACE_LEVEL_NONE=
< CONFIG_AVRC_TRACE_LEVEL_ERROR=
< CONFIG_AVRC_TRACE_LEVEL_WARNING=y
< CONFIG_AVRC_TRACE_LEVEL_API=
< CONFIG_AVRC_TRACE_LEVEL_EVENT=
< CONFIG_AVRC_TRACE_LEVEL_DEBUG=
< CONFIG_AVRC_TRACE_LEVEL_VERBOSE=
< CONFIG_AVRC_INITIAL_TRACE_LEVEL=2
< CONFIG_MCA_TRACE_LEVEL_NONE=
< CONFIG_MCA_TRACE_LEVEL_ERROR=
< CONFIG_MCA_TRACE_LEVEL_WARNING=y
< CONFIG_MCA_TRACE_LEVEL_API=
< CONFIG_MCA_TRACE_LEVEL_EVENT=
< CONFIG_MCA_TRACE_LEVEL_DEBUG=
< CONFIG_MCA_TRACE_LEVEL_VERBOSE=
< CONFIG_MCA_INITIAL_TRACE_LEVEL=2
< CONFIG_HID_TRACE_LEVEL_NONE=
< CONFIG_HID_TRACE_LEVEL_ERROR=
< CONFIG_HID_TRACE_LEVEL_WARNING=y
< CONFIG_HID_TRACE_LEVEL_API=
< CONFIG_HID_TRACE_LEVEL_EVENT=
< CONFIG_HID_TRACE_LEVEL_DEBUG=
< CONFIG_HID_TRACE_LEVEL_VERBOSE=
< CONFIG_HID_INITIAL_TRACE_LEVEL=2
< CONFIG_APPL_TRACE_LEVEL_NONE=
< CONFIG_APPL_TRACE_LEVEL_ERROR=
< CONFIG_APPL_TRACE_LEVEL_WARNING=y
< CONFIG_APPL_TRACE_LEVEL_API=
< CONFIG_APPL_TRACE_LEVEL_EVENT=
< CONFIG_APPL_TRACE_LEVEL_DEBUG=
< CONFIG_APPL_TRACE_LEVEL_VERBOSE=
< CONFIG_APPL_INITIAL_TRACE_LEVEL=2
< CONFIG_GATT_TRACE_LEVEL_NONE=
< CONFIG_GATT_TRACE_LEVEL_ERROR=
< CONFIG_GATT_TRACE_LEVEL_WARNING=y
< CONFIG_GATT_TRACE_LEVEL_API=
< CONFIG_GATT_TRACE_LEVEL_EVENT=
< CONFIG_GATT_TRACE_LEVEL_DEBUG=
< CONFIG_GATT_TRACE_LEVEL_VERBOSE=
< CONFIG_GATT_INITIAL_TRACE_LEVEL=2
< CONFIG_SMP_TRACE_LEVEL_NONE=
< CONFIG_SMP_TRACE_LEVEL_ERROR=
< CONFIG_SMP_TRACE_LEVEL_WARNING=y
< CONFIG_SMP_TRACE_LEVEL_API=
< CONFIG_SMP_TRACE_LEVEL_EVENT=
< CONFIG_SMP_TRACE_LEVEL_DEBUG=
< CONFIG_SMP_TRACE_LEVEL_VERBOSE=
< CONFIG_SMP_INITIAL_TRACE_LEVEL=2
< CONFIG_BTIF_TRACE_LEVEL_NONE=
< CONFIG_BTIF_TRACE_LEVEL_ERROR=
< CONFIG_BTIF_TRACE_LEVEL_WARNING=y
< CONFIG_BTIF_TRACE_LEVEL_API=
< CONFIG_BTIF_TRACE_LEVEL_EVENT=
< CONFIG_BTIF_TRACE_LEVEL_DEBUG=
< CONFIG_BTIF_TRACE_LEVEL_VERBOSE=
< CONFIG_BTIF_INITIAL_TRACE_LEVEL=2
< CONFIG_BTC_TRACE_LEVEL_NONE=
< CONFIG_BTC_TRACE_LEVEL_ERROR=
< CONFIG_BTC_TRACE_LEVEL_WARNING=y
< CONFIG_BTC_TRACE_LEVEL_API=
< CONFIG_BTC_TRACE_LEVEL_EVENT=
< CONFIG_BTC_TRACE_LEVEL_DEBUG=
< CONFIG_BTC_TRACE_LEVEL_VERBOSE=
< CONFIG_BTC_INITIAL_TRACE_LEVEL=2
< CONFIG_OSI_TRACE_LEVEL_NONE=
< CONFIG_OSI_TRACE_LEVEL_ERROR=
< CONFIG_OSI_TRACE_LEVEL_WARNING=y
< CONFIG_OSI_TRACE_LEVEL_API=
< CONFIG_OSI_TRACE_LEVEL_EVENT=
< CONFIG_OSI_TRACE_LEVEL_DEBUG=
< CONFIG_OSI_TRACE_LEVEL_VERBOSE=
< CONFIG_OSI_INITIAL_TRACE_LEVEL=2
< CONFIG_BLUFI_TRACE_LEVEL_NONE=
< CONFIG_BLUFI_TRACE_LEVEL_ERROR=
< CONFIG_BLUFI_TRACE_LEVEL_WARNING=y
< CONFIG_BLUFI_TRACE_LEVEL_API=
< CONFIG_BLUFI_TRACE_LEVEL_EVENT=
< CONFIG_BLUFI_TRACE_LEVEL_DEBUG=
< CONFIG_BLUFI_TRACE_LEVEL_VERBOSE=
< CONFIG_BLUFI_INITIAL_TRACE_LEVEL=2
< CONFIG_BT_ACL_CONNECTIONS=2
< CONFIG_BT_ALLOCATION_FROM_SPIRAM_FIRST=y
< CONFIG_BT_BLE_DYNAMIC_ENV_MEMORY=y
< CONFIG_BLE_HOST_QUEUE_CONGESTION_CHECK=
< CONFIG_SMP_ENABLE=y
< CONFIG_BLE_ACTIVE_SCAN_REPORT_ADV_SCAN_RSP_INDIVIDUALLY=
< CONFIG_BLE_ESTABLISH_LINK_CONNECTION_TIMEOUT=30
< CONFIG_BT_RESERVE_DRAM=0xdb5c
---


CONFIG_BT_RESERVE_DRAM=0


506a284


CONFIG_NO_BLOBS=


514d291
< CONFIG_SW_COEXIST_ENABLE=
642c419
< CONFIG_FATFS_ALLOC_PREFER_EXTRAM=y
---


CONFIG_FATFS_ALLOC_PREFER_EXTRAM=


673c450
< CONFIG_FREERTOS_INTERRUPT_BACKTRACE=y
---


CONFIG_FREERTOS_INTERRUPT_BACKTRACE=


683c460
< CONFIG_TIMER_TASK_PRIORITY=1
---


CONFIG_TIMER_TASK_PRIORITY=20


688,689c465,469
< CONFIG_FREERTOS_USE_STATS_FORMATTING_FUNCTIONS=
< CONFIG_FREERTOS_GENERATE_RUN_TIME_STATS=
---


CONFIG_FREERTOS_USE_STATS_FORMATTING_FUNCTIONS=y
CONFIG_FREERTOS_VTASKLIST_INCLUDE_COREID=
CONFIG_FREERTOS_GENERATE_RUN_TIME_STATS=y
CONFIG_FREERTOS_RUN_TIME_STATS_USING_ESP_TIMER=y
CONFIG_FREERTOS_RUN_TIME_STATS_USING_CPU_CLK=


775c555
< CONFIG_TCPIP_TASK_AFFINITY_NO_AFFINITY=y
---


CONFIG_TCPIP_TASK_AFFINITY_NO_AFFINITY=


777,778c557,558
< CONFIG_TCPIP_TASK_AFFINITY_CPU1=
< CONFIG_TCPIP_TASK_AFFINITY=0x7FFFFFFF
---


CONFIG_TCPIP_TASK_AFFINITY_CPU1=y
CONFIG_TCPIP_TASK_AFFINITY=0x1


810c590
< CONFIG_OVMS_HW_CAN_RX_QUEUE_SIZE=30
---


CONFIG_OVMS_HW_CAN_RX_QUEUE_SIZE=60


859,860c639,640
< CONFIG_OVMS_VEHICLE_RXTASK_STACK=6144
< CONFIG_OVMS_VEHICLE_CAN_RX_QUEUE_SIZE=40
---


CONFIG_OVMS_VEHICLE_RXTASK_STACK=8192
CONFIG_OVMS_VEHICLE_CAN_RX_QUEUE_SIZE=60


865d644
< CONFIG_OVMS_COMP_BLUETOOTH=y
900d678
< CONFIG_BTDM_CONTROLLER_BR_EDR_SCO_DATA_PATH_EFF=0
905,906c683,684
< CONFIG_MBEDTLS_INTERNAL_MEM_ALLOC=y
< CONFIG_MBEDTLS_EXTERNAL_MEM_ALLOC=
---


CONFIG_MBEDTLS_INTERNAL_MEM_ALLOC=
CONFIG_MBEDTLS_EXTERNAL_MEM_ALLOC=y


909c687
< CONFIG_MBEDTLS_SSL_MAX_CONTENT_LEN=4096
---


CONFIG_MBEDTLS_SSL_MAX_CONTENT_LEN=16384


929c707
< CONFIG_MBEDTLS_KEY_EXCHANGE_PSK=
---


CONFIG_MBEDTLS_KEY_EXCHANGE_PSK=y


1104a883


#


Thanx in advance for your help.

Regards

Chris

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