ESP32 Forum

Hi,

Is it possible to use an ESP32 to scan and gather raw advertising data?
At this moment i use a raspberry pi with HCIDUMP -Rx to get the following data;

> 0000: 04 3e 2b 02 01 00 00 84 34 49 0e f0 ec 1f 02 01 .>+.....4I......
0010: 06 0f 09 41 69 72 20 4d 65 6e 74 6f 72 20 50 72 ...Air Mentor Pr
0020: 6f 0b ff 12 21 00 8a 1a df 39 20 00 16 d8 o...!....9 ...

> 0000: 04 3e 0f 02 01 04 00 84 34 49 0e f0 ec 03 02 0a .>......4I......
0010: 00 c9 ..

> 0000: 04 3e 2b 02 01 00 00 84 34 49 0e f0 ec 1f 02 01 .>+.....4I......
0010: 06 0f 09 41 69 72 20 4d 65 6e 74 6f 72 20 50 72 ...Air Mentor Pr
0020: 6f 0b ff 12 21 00 8a 1a df 39 20 00 16 c4 o...!....9 ...

> 0000: 04 3e 0f 02 01 04 00 84 34 49 0e f0 ec 03 02 0a .>......4I......
0010: 00 c4 ..

I would like to store this raw BLE advertising data in a database.
The data is from a Air Mentor Pro and contains PM2.5,PM10,CO2,TVOC, TEMP and humidity data.

Is there an example program to scan for raw data?

Kindly regards Han

Here is example that you can use as base. If you set scan duration to 0 then you can scan infinitely:
https://github.com/espressif/esp-idf/bl ... emo.c#L311

From this code you can remove all you dont need (not related to scann).
Here is event called when esp32 find ble device:
https://github.com/espressif/esp-idf/bl ... #L327-L345

Thanks, Can the code also work with arduino ide with espressif/ble libery? at my first compile i got a lot of compile errors.

C:\Users\hvanh\Documents\Arduino\testBLE\testBLE.ino: In function 'void gattc_profile_event_handler(esp_gattc_cb_event_t, esp_gatt_if_t, esp_ble_gattc_cb_param_t*)':

testBLE:108: error: jump to case label [-fpermissive]
case ESP_GATTC_CONNECT_EVT:{
^
C:\Users\hvanh\Documents\Arduino\testBLE\testBLE.ino:103:19: note: crosses initialization of 'esp_err_t scan_ret'
esp_err_t scan_ret = esp_ble_gap_set_scan_params(&ble_scan_params);
^
testBLE:120: error: jump to case label [-fpermissive]
case ESP_GATTC_OPEN_EVT: