ESP32 Forum

Subject : How much Heap Memory will BLE satck use in esp idf 5.0.7

Chip revision : ESP32 Chip is ESP32-D0WDQ6 (revision v1.0)

Configuration 16 Mb Flash memory, 2 Mb PSRAM

I Need this stack in my application
Zigbee
FOTA
WiFi
MQTT[Secure,Unsecure]
LED
Button
Memory Related 1 task
And BLE [Bluedroid]

Could you tell me how much minimum HEAP memory is required for BLE, Because it is using large number of heap [stack].

Regards,
Kesha

This may help a bit:
https://docs.espressif.com/projects/esp ... tack-sizes

Also, you can call esp_bt_mem_release(ESP_BT_MODE_CLASSIC_BT) to regain some RAM.