これはわかりにくい！！

コンパイルすると “deprecated”（廃止された）の警告が出ていた
特にエラーではなかったので、とりあえず無視を決め込んでいたのだが、ソース清書時点で見直した

よくよく読むと、pin_sccb_～を使えと書いてある

C:/Users/xxxx/nwc-esp32s/main/main.c:94:3: warning: 'pin_sscb_sda' is deprecated: please use pin_sccb_sda instead [-Wdeprecated-declarations]
   94 |   config.pin_sscb_sda = SIOD_GPIO_NUM;
      |   ^~~~~~
In file included from C:/Users/xxxx/nwc-esp32s/main/include/cam.h:1,
                 from C:/Users/xxxx/nwc-esp32s/main/main.c:26:
C:/Users/xxxx/esp/v5.3.1/esp-idf/components/esp32-camera/driver/include/esp_camera.h:123:13: note: declared here
  123 |         int pin_sscb_sda __attribute__((deprecated("please use pin_sccb_sda instead")));           /*!< GPIO pin for camera SDA line (legacy name) */
      |             ^~~~~~~~~~~~
C:/Users/xxxx/nwc-esp32s/main/main.c:95:3: warning: 'pin_sscb_scl' is deprecated: please use pin_sccb_scl instead [-Wdeprecated-declarations]
   95 |   config.pin_sscb_scl = SIOC_GPIO_NUM;
      |   ^~~~~~
C:/Users/xxxx/esp/v5.3.1/esp-idf/components/esp32-camera/driver/include/esp_camera.h:127:13: note: declared here
  127 |         int pin_sscb_scl __attribute__((deprecated("please use pin_sccb_scl instead")));           /*!< GPIO pin for camera SCL line (legacy name) */
      |             ^~~~~~~~~~~~

pin_sscb_sda を pin_sccb_sda　・・・　？？？

あ、あああああ！

sscb を sccb ね

というわけで、変更

  config.pin_sccb_sda = SIOD_GPIO_NUM;
  config.pin_sccb_scl = SIOC_GPIO_NUM;

警告は出なくなった＼(^o^)／