diff --git a/CMakeLists.txt b/CMakeLists.txt
index f9d47f6..292c585 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -16,6 +16,7 @@ add_executable(Modele_RPiPico
 
 target_link_libraries(Modele_RPiPico
   hardware_uart 
+  hardware_pwm
   pico_stdlib
   pico_multicore
 )
diff --git a/main.c b/main.c
index ce2833b..890f148 100644
--- a/main.c
+++ b/main.c
@@ -4,11 +4,21 @@
  * SPDX-License-Identifier: BSD-3-Clause
 */
 #include "pico/stdlib.h"
+#include "hardware/pwm.h"
 #include <stdio.h>
 
 void main(void)
 {
 	stdio_init_all();
+
+	gpio_set_function(25, GPIO_FUNC_PWM);
+	pwm_set_enabled(4, true);
+	pwm_set_chan_level(4, PWM_CHAN_B, 30000);
+	
+
+	
+	
+
 	while(1){
 		printf("Exemple\n");
 		sleep_ms(1000);