I think I've answered the first question. Some Espressif examples, such as ble_spp_server call xQueueSend() from the GATT event handler, so the xxxFromISR() versions are not necessary.

I'm still unsure about the second question - any suggestions?

I have an ESP32 running as a GATT server which receives 512 bytes of data at a time from the GATT client. I want to then transmit this data over UART. A pointer to the data gets posted to a FreeRTOS queue, which is received by my uart_tx_task. I am thinking the fastest way to do this would be to hav...

Hi I've read in a few places that the BLE spec requires a packet to be retransmitted if its checksum calculated at the receiver does not match the checksum sent by the transmitter i.e. error detection. I want to confirm whether this is true, and that the ESP32 BLE stack using Bluedroid implements th...

Replying for traction. I'm also interested in seeing an answer to this.

I was looking through the gatts_table_creat_demo.c example and I noticed in the attribute table all of the characteristic value entries in the table, the "value" field (i.e. esp_attr_desc_t.value) is a pointer to char_value[4] (a literal array of 8-bit hex values). This struck me as odd because I th...

I am beginning to plan a project using an ESP32-WROVER-E and would like to measure the BLE throughput. I am looking to do OTA over BLE. I have set up two ESP32's with the throughput client and server examples provided by Espressif. Both write and notify throughput report a data rate of ~91 kB/s whic...

I am considering using an ESP32 for a new project. This project will require use of all four of the ESP32's hardware timers. I also want to use Bluetooth/BLE for this project using the ESP-IDF API. I am wanting to know if the API uses any of the hardware timers to implement the Bluetooth functions, ...