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Arduino core for the ESP32
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ble_server txPower allways -21 #1701

Closed eltsov-da closed 5 years ago

eltsov-da commented 6 years ago

Hardware:

Board: TTGO LoRa OLED v1 Core Installation/update date: 30/07/2018 IDE name: Arduino IDE? Flash Frequency: 80Mhz Upload Speed: 921600

Description:

ble txPower allways -21 Try to change ble txPower in BLE_server.ino example. But in BLE_scan.ino got only txPower: -21 Most of all I interested in

Sketch:

BLE_server.ino example line 20 I try:

BLEDevice::init("MyESP32");
BLEDevice::setPower(ESP_PWR_LVL_N0);

Debug

Starting BLE work!
[D][BLEDevice.cpp:444] setPower(): >> setPower: 4
[D][BLEDevice.cpp:449] setPower(): << setPower
[D][BLEDevice.cpp:70] createServer(): >> createServer
[D][BLEServer.cpp:305] registerApp(): >> registerApp - 0
[D][BLEDevice.cpp:96] gattServerEventHandler(): gattServerEventHandler [esp_gatt_if: 4] ... ESP_GATTS_REG_EVT
[D][BLEUtils.cpp:1647] dumpGattServerEvent(): GATT ServerEvent: ESP_GATTS_REG_EVT
[D][BLEUtils.cpp:1791] dumpGattServerEvent(): [status: ESP_GATT_OK, app_id: 0]
[D][BLEServer.cpp:177] handleGATTServerEvent(): >> handleGATTServerEvent: ESP_GATTS_REG_EVT
[D][BLEServer.cpp:309] registerApp(): << registerApp
[D][BLEServer.cpp:295] handleGATTServerEvent(): << handleGATTServerEvent
[D][BLEDevice.cpp:77] createServer(): << createServer
[D][BLEServer.cpp:76] createService(): >> createService - 4fafc201-1fb5-459e-8fcc-c5c9c331914b
[D][BLEDevice.cpp:96] gattServerEventHandler(): gattServerEventHandler [esp_gatt_if: 4] ... ESP_GATTS_CREATE_EVT
[D][BLEUtils.cpp:1647] dumpGattServerEvent(): GATT ServerEvent: ESP_GATTS_CREATE_EVT
[D][BLEUtils.cpp:1716] dumpGattServerEvent(): [status: ESP_GATT_OK, service_handle: 40 0x28, service_id: [uuid: 4fafc201-1fb5-459e-8fcc-c5c9c331914b, inst_id: 0]]
[D][BLEServer.cpp:177] handleGATTServerEvent(): >> handleGATTServerEvent: ESP_GATTS_CREATE_EVT
[D][BLEService.cpp:211] setHandle(): >> setHandle - Handle=0x28, service UUID=4fafc201-1fb5-459e-8fcc-c5c9c331914b)
[D][BLEService.cpp:217] setHandle(): << setHandle
[D][BLEService.cpp:90] executeCreate(): << executeCreate
[D][BLEServer.cpp:295] handleGATTServerEvent(): << handleGATTServerEvent
[D][BLEServer.cpp:94] createService(): << createService
[D][BLEService.cpp:239] addCharacteristic(): >> addCharacteristic()
[D][BLEService.cpp:242] addCharacteristic(): Adding characteristic: uuid=beb5483e-36e1-4688-b7f5-ea07361b26a8 to service: UUID: 4fafc201-1fb5-459e-8fcc-c5c9c331914b, handle: 0x28
[D][BLEService.cpp:254] addCharacteristic(): << addCharacteristic()
[D][BLECharacteristic.cpp:664] setValue(): >> setValue: length=21, data=48656c6c6f20576f726c642073617973204e65696c, characteristic UUID=beb5483e-36e1-4688-b7f5-ea07361b26a8
[к.txt](https://github.com/espressif/arduino-esp32/files/2244563/default.txt)

[D][BLECharacteristic.cpp:671] setValue(): << setValue
[D][BLEService.cpp:148] start(): >> start(): Starting service (esp_ble_gatts_start_service): UUID: 4fafc201-1fb5-459e-8fcc-c5c9c331914b, handle: 0x28
[D][BLECharacteristic.cpp:83] executeCreate(): >> executeCreate()
[D][BLECharacteristic.cpp:94] executeCreate(): Registering characteristic (esp_ble_gatts_add_char): uuid: beb5483e-36e1-4688-b7f5-ea07361b26a8, service: UUID: 4fafc201-1fb5-459e-8fcc-c5c9c331914b, handle: 0x28
[D][BLEDevice.cpp:96] gattServerEventHandler(): gattServerEventHandler [esp_gatt_if: 4] ... ESP_GATTS_ADD_CHAR_EVT
[D][BLEUtils.cpp:1647] dumpGattServerEvent(): GATT ServerEvent: ESP_GATTS_ADD_CHAR_EVT
[D][BLEUtils.cpp:1669] dumpGattServerEvent(): [status: ESP_GATT_OK, attr_handle: 42 0x2a, service_handle: 40 0x28, char_uuid: beb5483e-36e1-4688-b7f5-ea07361b26a8]
[D][BLEServer.cpp:177] handleGATTServerEvent(): >> handleGATTServerEvent: ESP_GATTS_ADD_CHAR_EVT
[D][BLECharacteristic.cpp:609] setHandle(): >> setHandle: handle=0x2a, characteristic uuid=beb5483e-36e1-4688-b7f5-ea07361b26a8
[D][BLECharacteristic.cpp:611] setHandle(): << setHandle
[D][BLECharacteristic.cpp:209] handleGATTServerEvent(): >> handleGATTServerEvent: ESP_GATTS_ADD_CHAR_EVT
[D][BLECharacteristic.cpp:461] handleGATTServerEvent(): << handleGATTServerEvent
[D][BLECharacteristic.cpp:135] executeCreate(): << executeCreate
[D][BLEServer.cpp:295] handleGATTServerEvent(): << handleGATTServerEvent
[D][BLEDevice.cpp:96] gattServerEventHandler(): gattServerEventHandler [esp_gatt_if: 4] ... ESP_GATTS_START_EVT
[D][BLEUtils.cpp:1647] dumpGattServerEvent(): GATT ServerEvent: ESP_GATTS_START_EVT
[D][BLEUtils.cpp:1805] dumpGattServerEvent(): [status: ESP_GATT_OK, service_handle: 0x28]
[D][BLEServer.cpp:177] handleGATTServerEvent(): >> handleGATTServerEvent: ESP_GATTS_START_EVT
[D][BLEService.cpp:174] start(): << start()
[D][BLECharacteristic.cpp:209] handleGATTServerEvent(): >> handleGATTServerEvent: ESP_GATTS_START_EVT
[D][BLEAdvertising.cpp:174] start(): >> start: customAdvData: 0, ### customScanResponseData: 0
[D][BLECharacteristic.cpp:461] handleGATTServerEvent(): << handleGATTServerEvent
[D][BLEAdvertising.cpp:194] start(): - no services advertised
[D][BLEServer.cpp:295] hand**leGATTServerEven**t(): << handleGATTServerEvent
[D][BLEAdvertising.cpp:231] start(): << start
Characteristic defined! Now you can read it in your phone!
[D][BLEUtils.cpp:1091] dumpGapEvent(): Received a GAP event: ESP_GAP_BLE_ADV_DATA_SET_COMPLETE_EVT
[D][BLEUtils.cpp:1099] dumpGapEvent(): [status: 0]
[D][BLEServer.cpp:135] handleGAPEvent(): BLEServer ... handling GAP event!
[D][BLEUtils.cpp:1091] dumpGapEvent(): Received a GAP event: ESP_GAP_BLE_SCAN_RSP_DATA_SET_COMPLETE_EVT
[D][BLEUtils.cpp:1285] dumpGapEvent(): [status: 0]
[D][BLEServer.cpp:135] handleGAPEvent(): BLEServer ... handling GAP event!
[D][BLEUtils.cpp:1091] dumpGapEvent(): Received a GAP event: ESP_GAP_BLE_ADV_START_COMPLETE_EVT
[D][BLEUtils.cpp:1123] dumpGapEvent(): [status: 0]
[D][BLEServer.cpp:135] handleGAPEvent(): BLEServer ... handling GAP event!

and also try:

BLEDevice::init("MyESP32");
esp_err_t errRc=::esp_ble_tx_power_set(ESP_BLE_PWR_TYPE_DEFAULT, ESP_PWR_LVL_N0);
errRc=::esp_ble_tx_power_set(ESP_BLE_PWR_TYPE_ADV, ESP_PWR_LVL_N0);
errRc=::esp_ble_tx_power_set(ESP_BLE_PWR_TYPE_SCAN, ESP_PWR_LVL_N0);

but in Serial monitor BLE_scan.ino example I got:

Scanning...
Advertised Device: Name: MyESP32, Address: 30:ae:a4:59:21:4e, txPower: -21
Devices found: 1
Scan done!

And also it works not more then 1m distance

lbernstone commented 6 years ago

https://esp-idf.readthedocs.io/en/latest/api-reference/bluetooth/controller_vhci.html?highlight=esp_ble_tx_power_set#_CPPv220esp_ble_tx_power_set20esp_ble_power_type_t17esp_power_level_t indicates this should only be set after a connection is made. Maybe esp_bredr_tx_power_set will do what you are looking for? No amount of power is going to compensate for a bad antenna. Do you get decent signal strength with WiFi?

eltsov-da commented 6 years ago

It's very valid point about esp_ble_tx_power_set and set after a connection is made. But second parameter point that I can set power for advertising and scanning (enum esp_ble_power_type_t ESP_BLE_PWR_TYPE_ADV = 9 ESP_BLE_PWR_TYPE_SCAN = 10 ESP_BLE_PWR_TYPE_DEFAULT = 11) and I can't catch where is connection if I need advertising power set. Antenna also very valid point and I think of it all the time. But I have no problem with WiFi I successfully connect to AP on the other flow in our building. And thank for esp_bredr_tx_power_set I try it. But it's seems to me that BR/EDR = Classic Bluetooth not BLE

ehsanmqn commented 6 years ago

@eltsov-da Hi, Could you finally find a way to do tx power adjustment? If yes guide me please. I have same problem.

eltsov-da commented 6 years ago

Hi. It's seems to me it's set of 2 issues :)

  1. https://github.com/espressif/esp-idf/issues/2284 - TX power during advertising is hardcoded. But real power is changed.
  2. TTGO LoRa OLED v1 hard ware problem. It's very strange for me but 3 days ago I finally got two Heltec Lora ... modules. And it's seems to me they work much better. I am sure I can got signal in about 5 miters. During week and I'll do some outdoors tests and tell you. And I still haven't any problem with WiFi
stale[bot] commented 5 years ago

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

stale[bot] commented 5 years ago

This stale issue has been automatically closed. Thank you for your contributions.