Made it work on Gustavs PC

main/CMakeLists.txt

@@ -2,7 +2,5 @@
 #                    INCLUDE_DIRS "."
 #                    )
 
-set(COMPONENT_SRCDIRS ".")
-set(COMPONENT_ADD_INCLUDEDIRS ".")
-
-register_component()
+idf_component_register(SRCS "main.c" "mqtt.c" "readTemps.c" "wifi.c"
+                       INCLUDE_DIRS ".")

main/main.c

@@ -9,6 +9,7 @@
 #include "wifi.h"
 #include "mqtt.h"
 #include "readTemps.h"
+#include "esp_chip_info.h"
 
 esp_chip_info_t chip_info;
 

main/mqtt.c

@@ -12,7 +12,11 @@
 #include <stddef.h>
 #include <string.h>
 #include "esp_wifi.h"
+#if ESP_IDF_VERSION_MAJOR >= 5
+#include "esp_chip_info.h"
+#else
 #include "esp_system.h"
+#endif
 #include "nvs_flash.h"
 #include "esp_event.h"
 #include "esp_netif.h"

main/wifi.c

@@ -12,7 +12,11 @@
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 #include "freertos/event_groups.h"
+#if ESP_IDF_VERSION_MAJOR >= 5
+#include "esp_chip_info.h"
+#else
 #include "esp_system.h"
+#endif
 #include "esp_log.h"
 #include "driver/gpio.h"