Compile error encountered

[vernonal]

All, I am getting a compiler where I never had it before.
Did a quick update to an older script and now am getting the error listed below.
Saw that there was something similar a while back, so I have updated all libraries and and running the latest IDE.
I get this same error when I try compiling the default ESPNOW_Sensor script.
Any Ideas ?

`In file included from C:\Users\acver\OneDrive\Documents\Arduino\libraries\Farm-Data-Relay-System\examples\ESPNOW_Sensor\ESPNOW_Sensor.ino:10:
c:\Users\acver\OneDrive\Documents\Arduino\libraries\Farm-Data-Relay-System\src/fdrs_node.h: In function 'void beginFDRS()':
c:\Users\acver\OneDrive\Documents\Arduino\libraries\Farm-Data-Relay-System\src/fdrs_node.h:118:28: error: invalid conversion from 'void (*)(const uint8_t*, esp_now_send_status_t)' {aka 'void (*)(const unsigned char*, esp_now_send_status_t)'} to 'esp_now_send_cb_t' {aka 'void (*)(const wifi_tx_info_t*, esp_now_send_status_t)'} [-fpermissive]
  118 |   esp_now_register_send_cb(OnDataSent);
      |                            ^~~~~~~~~~
      |                            |
      |                            void (*)(const uint8_t*, esp_now_send_status_t) {aka void (*)(const unsigned char*, esp_now_send_status_t)}
In file included from c:\Users\acver\OneDrive\Documents\Arduino\libraries\Farm-Data-Relay-System\src/fdrs_node_espnow.h:5,
                 from c:\Users\acver\OneDrive\Documents\Arduino\libraries\Farm-Data-Relay-System\src/fdrs_node.h:46:
C:\Users\acver\AppData\Local\Arduino15\packages\esp32\tools\esp32-arduino-libs\idf-release_v5.5-07e9bf49-v1\esp32s3/include/esp_wifi/include/esp_now.h:210:54: note:   initializing argument 1 of 'esp_err_t esp_now_register_send_cb(esp_now_send_cb_t)'
  210 | esp_err_t esp_now_register_send_cb(esp_now_send_cb_t cb);
      |                                    ~~~~~~~~~~~~~~~~~~^~
exit status 1`

[kesect]

The compile error is due to a change in the ESP32 ESP-NOW API. The send callback now requires wifi_tx_info_t* instead of uint8_t*. Editing the OnDataSent function to accept wifi_tx_info_t* and accessing the MAC via info->mac will fix the issue your having. Cheers!

[vernonal]

Thanks and sorry for the delayed reply.
Sorry but I am not following... here is the OnDataSent function for the ESP32, I changed the reference as suggested but if doesn't seem to reference the 'mac' variable so I am confused about what to do with your info->mac reference

void OnDataSent(wifi_tx_info_t *mac_addr, esp_now_send_status_t status)
{
if (status == ESP_NOW_SEND_SUCCESS)
{
esp_now_ack_flag = CRC_OK;
}
else
{
esp_now_ack_flag = CRC_BAD;
}
}

Note that after I do this the script still throws an error for the OnDataSent reference.

In file included from C:\Users\acver\OneDrive\Documents\Arduino\libraries\Farm-Data-Relay-System\examples\ESPNOW_Sensor\ESPNOW_Sensor.ino:10:
c:\Users\acver\OneDrive\Documents\Arduino\libraries\Farm-Data-Relay-System\src/fdrs_node.h: In function 'void beginFDRS()':
c:\Users\acver\OneDrive\Documents\Arduino\libraries\Farm-Data-Relay-System\src/fdrs_node.h:118:28: error: invalid conversion from 'void (*)(wifi_tx_info_t*, esp_now_send_status_t)' to 'esp_now_send_cb_t' {aka 'void (*)(const wifi_tx_info_t*, esp_now_send_status_t)'} [-fpermissive]
  118 |   esp_now_register_send_cb(OnDataSent);
      |                            ^~~~~~~~~~
      |                            |
      |                            void (*)(wifi_tx_info_t*, esp_now_send_status_t)
In file included from c:\Users\acver\OneDrive\Documents\Arduino\libraries\Farm-Data-Relay-System\src/fdrs_node_espnow.h:5,
                 from c:\Users\acver\OneDrive\Documents\Arduino\libraries\Farm-Data-Relay-System\src/fdrs_node.h:46:
C:\Users\acver\AppData\Local\Arduino15\packages\esp32\tools\esp32-arduino-libs\idf-release_v5.5-07e9bf49-v1\esp32s3/include/esp_wifi/include/esp_now.h:210:54: note:   initializing argument 1 of 'esp_err_t esp_now_register_send_cb(esp_now_send_cb_t)'
  210 | esp_err_t esp_now_register_send_cb(esp_now_send_cb_t cb);
      |                                    ~~~~~~~~~~~~~~~~~~^~
exit status 1

Compilation error: exit status 1

[svdrummer]

esp_now_register_send_cb(OnDataSent);
but now (today at least !)
esp_now_register_send_cb(esp_now_send_cb_t(OnDataSent));

[vernonal]

Thanks, for others that run into this problem the above change is required in two places in the fdrs_node.h file

[timmbogner]

@vernonal Thanks a lot for bringing this up... @svdrummer & @kesect thanks for submitting solutions!
I've been pretty detached from the project lately and focused on outdoor stuff. I haven't worked on new features because I'm just a bit rusty, but I'll try to get this patched soon.

[svdrummer]

Timm, the changes only apply to ESP32 arduino ISE Version 3.3.3 onwards. Espressive changed their side and Arduino changed the wrapper on version 3.3.3. Only affects the On data sent routines as all the other routines were already changed.
May be worth a note somewhere about hardware library ESP32.