diff --git a/platforms/libusb/main.c b/platforms/libusb/main.c
index b86dea2e4..c1c1ce5e6 100644
--- a/platforms/libusb/main.c
+++ b/platforms/libusb/main.c
@@ -50,6 +50,7 @@
 #include "btstack-config.h"
 
 #include <btstack/run_loop.h>
+#include <btstack/hal_led.h>
 
 #include "debug.h"
 #include "btstack_memory.h"
@@ -73,6 +74,12 @@ static void sigint_handler(int param){
     exit(0);
 }
 
+static led_state = 0;
+void hal_led_toggle(){
+    led_state = 1 - led_state;
+    printf("LED State %u\n", led_state);
+}
+
 int main(int argc, const char * argv[]){
 
 	/// GET STARTED with BTstack ///
diff --git a/platforms/posix-stlc2500d/main.c b/platforms/posix-stlc2500d/main.c
index 42a7d078a..9775d4953 100644
--- a/platforms/posix-stlc2500d/main.c
+++ b/platforms/posix-stlc2500d/main.c
@@ -80,6 +80,12 @@ static void sigint_handler(int param){
     exit(0);
 }
 
+static led_state = 0;
+void hal_led_toggle(){
+    led_state = 1 - led_state;
+    printf("LED State %u\n", led_state);
+}
+
 int main(int argc, const char * argv[]){
 
 	/// GET STARTED with BTstack ///
diff --git a/platforms/posix-wl183x/main.c b/platforms/posix-wl183x/main.c
index d38f476ab..977a8a594 100644
--- a/platforms/posix-wl183x/main.c
+++ b/platforms/posix-wl183x/main.c
@@ -79,6 +79,12 @@ static void sigint_handler(int param){
     exit(0);
 }
 
+static led_state = 0;
+void hal_led_toggle(){
+    led_state = 1 - led_state;
+    printf("LED State %u\n", led_state);
+}
+
 int main(int argc, const char * argv[]){
 
 	/// GET STARTED with BTstack ///