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ee787085f9
esp-idf/examples/bluetooth/gattc_multi_connect
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Tian Hao ee787085f9 component/bt : decrease memory consumption by conn number 
1. BLE only with 9(max) connection will decrease 3K DRAM
2. BR/EDR only with 7(max) connection will decrease 16K DRAM
3. Any of BLE or BR/EDR connection number decrease will also decrease DRAM consumption
4. Decrease one BLE connection will save about 1KB DRAM
5. Decrease one BR/EDR ACL connection will save about 1.2KB DRAM
6. Decrease one BR/EDR SCO/eSCO will save 2KB DRAM.
7. fix some definition and kconfig
8. remove 1.2k of vhci tx cache and make .bss & .data to heap about 1.4K
9. modify BT Reserved Memory size and modify example to support new bt kconfig
2018-08-14 02:29:17 +00:00
..
main nvs_flash: Version compatibility check for nvs storage 2018-08-05 00:00:56 +00:00
tutorial component/bt: Update BLE examples tutorials and ReadMe files 2018-01-25 16:59:40 +08:00
Makefile t # This is a combination of 2 commits. 2017-08-08 20:15:38 +08:00
README.md component/bt: Update BLE examples tutorials and ReadMe files 2018-01-25 16:59:40 +08:00
sdkconfig.defaults component/bt : decrease memory consumption by conn number 2018-08-14 02:29:17 +00:00

README.md

ESP-IDF Gatt Client Multi Connection Demo

This is the demo of APIs to create a GATT multi-connection client. It can be used to connect to three GATT servers at the same time.

To test this demo, please run gatt_server_demo to create three GATT server devices, namely ESP_GATTS_DEMO_a, ESP_GATTS_DEMO_b and ESP_GATTS_DEMO_c, Gatt_client_multi_connection_demo will connect to these three gatt server demos, and then exchange data.

The code can be modified to connect to more devices (up to 4 devices by default). If you need to connect to more devices (more than 4 devices), you need to change BT/BLE MAX ACL CONNECTIONS in menuconfig.

Please check the tutorial for more information about this example.