I have a PC serial port connected to an ESP32 GPIO_1&3, mapped to UART0, which is used for console, bootloading, etc. My ESP32 UART2 is mapped to GPIO16&17, and is connected to a serial device. Under certain conditions, I need to be able to 'switch' the console uart into 'pass-through' mode, for dir...

Could you post snapshots of the nRF Connect RSSI graph of your modules, running at PWR_LVL_N12 & PWR_LVL_P9?
That should provide some clue if the modules are somehow at fault.
At least we know you can ignore the -21dBm TxPower in the advertising packet.

I'm seeing the same as you describe. I set the 'default' power for advertising using: esp_ble_tx_power_set( ESP_BLE_PWR_TYPE_DEFAULT, ESP_PWR_LVL_P9 ); This function is called prior to starting advertisment, and the flag is set in advertising data to include Tx power. According to esp_ble_power_t de...

I have a similar problem. I've opened an issue on github #2144, with details.

I have addressed some issues with my code (I was setting task priorities too high - they would have interfered with tasks internal to the bluetooth stack. I now limit my tasks to configMAX_PRIORITIES-10 (and below) to ensure the bluetooth stack can maintain real-time response). However, I have captu...

If I understand your setup correctly: - when you connect the laptop/tablet to the ESP32 (running in AP mode, no intervening router), you get a large number of dropped packets & long delays. - when you connect the laptop/tablet to the ESP32 (running in STA mode, WITH a router providing connectivity t...

In your case, I'd suggest you DON'T. I am also using u8g2 with a display on a ESP32 (started with Neils excelent example, too!). I think you'll find the display updates over I2C are pretty slow. You can optimize this by limiting updates to only portions of the screen that need it, but it's still pre...

I'm trying to work on 'link robustness' between an android platform (Panasonic FZ-B2 tablet, Android 6), and an ESP32 BLE app. Everything currently works, but the link will periodically (no set time period for this) be lost. Sometimes the link is automatically re-established, sometimes it is not. I'...