ESP is losing WiFi connections when enable Bluetoot

ESPHome
1

When start the bluetooth on the ESP is losing WiFi connections.

I will connect my xiaomi_lywsdcgq sensors over Bluetooth.

Everything works fine and i have good connections over Wi-FI until i add this row

esp32_ble_tracker:

After update i lose WiFi connections.

esphome:
  name: ble-server-bnb
  friendly_name: ble-server-bnb

# Hardware configuration
esp32:
  board: esp32dev
  framework:
    type: esp-idf


# Enable logging
logger:

# Enable Home Assistant API
api:
  encryption:
    key: "6f???"

ota:
  - platform: esphome
    password: "6c???"

wifi:

  ssid: "TP?????"
  password: "Le????"

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Ble-Server-Bnb Fallback Hotspot"
    password: "1????"

captive_portal:

switch:
  - platform: gpio
    name: "Lamp garage"
    pin: GPIO5

# Enable BLE 
esp32_ble_tracker:
1 Like
2

Just a heads up, you are sharing your wifi name and password.

edit: nevermind, saw you edited it out now.

3

thanks , i just realised my mistake

4

Did you upload that through usb serial? It’s likely required first time.

5

WiFi and Bluetooth share the radio on ESP32. If your WiFi network won’t tolerate that, you may need to consider ethernet.

I still recommend the Olimex ESP32-POE-ISO-EA together with the Olimex BOX-ESP32-POE-ISO-EA-F.

If you are having trouble getting them because of the tariffs, you can get them from Digikey in the US but the lead time is longer:
https://www.digikey.com/en/products/detail/olimex-ltd/ESP32-POE-ISO-EA-IND/21662101
https://www.digikey.com/en/products/detail/olimex-ltd/BOX-ESP32-POE-ISO-EA-F/26226957

These are proven stable and are also compatible with the ESPHome ready-made projects.

1 Like
6

Thanks for the hint. First i did over OTA , so i did think that was the problem, But after upload over USB the same problem remains.

7

Does it work if you switch to arduino framework?

8

Are you sure you’re just losing WiFi versus the device crashing?

I’d try removing Captive Portal as the BT component consumes a lot of RAM. I exclude that on all my devices that use BT Proxy (thought it was in the docs, but maybe I just found out via trial and error).

The docs specifically say to avoid the Arduino framework.

9

For debugging purposes.

I have devices running a shitload of stuff with ble_tracker including web_server with busy http api. Never experienced lost wifi.
Better to avoid though…

10

It seems when i change the code not using API encryption the ESP works fine
by removing bellow parts

# Enable Home Assistant API 
api: 
  encryption: 
  key: "hpsAlzZ9opxLjb9I7xGxwEKVc2gLuauN0DzgoVu79xg="