finally can compile the bme driver

main/main.c

@@ -11,13 +11,8 @@
 #include <esp_https_server.h>
 #include "bme280.h"
 
-// pin numbers specific to this TTGO board
-#define SDA_PIN GPIO_NUM_21
-#define SCL_PIN GPIO_NUM_22
-
 static const char *TAG = "BME280";
 
-
 /* An HTTP GET handler */
 static esp_err_t root_get_handler(httpd_req_t *req);
 static httpd_handle_t start_webserver(void);
@@ -34,6 +29,11 @@ static const httpd_uri_t root = {
 };
 
 
+
+void my_i2c_setup(void);
+void my_bme280_init(void);
+extern struct bme280_dev bme280; // from bme280_sup.c
+
 void app_main(void)
 {
     static httpd_handle_t server = NULL;
@@ -60,6 +60,10 @@ void app_main(void)
      * examples/protocols/README.md for more information about this function.
      */
     ESP_ERROR_CHECK(example_connect());
+
+    my_i2c_setup();
+    my_bme280_init();
+
 }
 
 static esp_err_t root_get_handler(httpd_req_t *req)