diff --git a/.gitignore b/.gitignore
index eea6179..a2c7af8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,3 @@
 /target
-/build
+/embedded/build
 /.idea
\ No newline at end of file
diff --git a/embedded/main/apple.c b/embedded/main/apple.c
index 76d1247..70ed3ac 100644
--- a/embedded/main/apple.c
+++ b/embedded/main/apple.c
@@ -26,11 +26,11 @@ uint8_t target[6] = {0xBC, 0xDD, 0xC2, 0x82, 0x82, 0x9E};
 
 typedef struct
 {
-    char char_value[30];
-    int int_value;
-    float float_value;
-    bool bool_value;
-} example_message_t;
+    uint8_t mac[6];
+    float temperature;
+    float battery_voltage;
+    unsigned long up_time;
+} sensor_message_t;
 
 void app_main(void)
 {