ESP32 Forum

Posted: **Mon Oct 16, 2023 9:43 pm**

Hi, I'm using esp-idf and bluedroid.

I would like to implement a feature that allows the user to press and hold a button, which triggers the following sequence
- Disconnect device from host
- Clear all bonding information
- Start advertising

The purpose of this is ease of portability between host machines, as it will be used on multiple devices frequently, rather than tracking credentials, a clean slate would be better.

The issue I'm having is that
- the host (macbook in this case) tries to reconnect automatically
- then the device is missing the key
- the connection attempt fails
- the device stops advertising until I manually start via button press.

When I increased the advertisement interval, the host connection attempt times out, and I see the advertisement, but then the problem becomes latency.

Is there a better workflow to accomplish this?
do I need to add another SW timer to kick off the start of advertising?

Any advice is welcome, thank you.

Posted: **Tue Oct 17, 2023 1:28 pm**

Do you have code in place to restart advertising like https://github.com/espressif/esp-idf/bl ... C1-L489C15

Code: Select all

    case ESP_GATTS_DISCONNECT_EVT:
        ESP_LOGI(GATTS_TAG, "ESP_GATTS_DISCONNECT_EVT, disconnect reason 0x%x", param->disconnect.reason);
        esp_ble_gap_start_advertising(&adv_params);
        break;

?

Posted: **Tue Oct 17, 2023 2:33 pm**

I did, but I took it out when I wanted the button to trigger advertising.
That sounds like it'll sort me out. Thank you.

ESP32 Forum

Workflow suggestions for clearing bonded devices and advertising

Workflow suggestions for clearing bonded devices and advertising

Re: Workflow suggestions for clearing bonded devices and advertising

Re: Workflow suggestions for clearing bonded devices and advertising