ESP-EYE: is it possible to activate the device as iBeacon?

[krambriw]

So I have a number of ESP-EYE's running since long, working very well using the camera_web_server example. Now I was just thinking, could it be possible to also make them act as iBeacons? I have seen there are a number of bluetooth examples in the esp-idf like ble_adv and ble_ibeacon

But how would you add such an example to the camera_web_server project to build and flash both to the esp32?

[XiaochaoGONG]

I've not tested that example, but I might give you an advice.

1. Copy the files from idf/examples/bluetooth/ble_ibeacon/main to esp-who/components/ble_ibeacon (need to mkdir ble_ibeacon)
2. Rename the app_main in the ibeacon_demo.c with ibeacon_start (actually whatever name)
3. Call the function in the real app_main in camera_web_server

[krambriw]

Thank you for helping me out, I have followed your advice. When I do make -j5 I get this error message:

CC build/main/app_main.o C:/msys32/home/EG/esp/esp-who/examples/single_chip/camera_web_server/main/app_main.c: In function 'app_main': C:/msys32/home/EG/esp/esp-who/examples/single_chip/camera_web_server/main/app_main.c:32:5: error: implicit declaration of function 'ibeacon_start' [-Werror=implicit-function-declaration] ibeacon_start(); ^ cc1.exe: some warnings being treated as errors make[1]: [/home/EG/esp/esp-who/esp-idf/make/component_wrapper.mk:286: app_main.o] Fel 1 make: [C:/msys32/home/EG/esp/esp-who/esp-idf/make/project.mk:505: component-main-build] Fel 2

[krambriw]

My app_main.c in the camera_web_server

include "app_camera.h"

include "app_wifi.h"

include "app_httpd.h"

void app_main() { app_wifi_main(); app_camera_main(); app_httpd_main(); ibeacon_start(); }

[XiaochaoGONG]

missing the declaration of ibeacon_start, put void ibeacon_start(); above.

[krambriw]

Yes, I figured out, thanks. It builds correctly without errors during make and the result can be flashed. But the ibeacon doesn't start. Also tried just with ibeacon but no success

void app_main()
{
/*app_wifi_main();
app_camera_main();
app_httpd_main();*/
ibeacon_start();
} 

I then tried to build the sample in esp-idf itself, flashed it to the esp-eye and the ibeacon started! So means the bluetooth in the esp-eye is functioning correctly

[krambriw]

I tried like this of course

void app_main()
{
/*app_wifi_main();
app_camera_main();
app_httpd_main();*/
void ibeacon_start();
} 

[XiaochaoGONG]

Please check your sdkconfig file to see if there is IBEACON_MODE like macros.

[krambriw]

Yes, it looks ok if I compare with the sdkconfig in the esp-idf ble_ibeacon project Something is missing...

sdkconfig.txt

[krambriw]

After many attempts, I just once saw "register callback" in the monitor log from the "IBEACON_DEMO" module. But then everything else did not continue, the camera did not work, the wifi did not connect, the web server did not start. So a kind of blocking happened I could not re-create this anymore. But it showed that the function call at least is happening but for some reason it does not work, maybe a memory problem, maybe is asking too much from the esp-eye Attached is the normal result from monitor when camera is working, and ibeacon is not. There is a warning about window overflow make_monitor.txt

[XiaochaoGONG]

Hi, from the log, I don't see any warning about window overflow, all seem normal. I note that you allocate 5 frames, do you need that many ? I suggest to make allocation from PSRAM implicitly. Go to make menuconfig, then Component config --> ESP32-specific --> SPI Ram config --> SPI RAM access method, chose Make RAM allocatable using malloc() as well.

[krambriw]

Thanks for looking into this I made those changes, allocate also just 1 frame but sorry, no difference, still not working

[krambriw]

seems this is not possible