Change PWM freq

Robotito/src/motors/motors.c

@@ -105,7 +105,7 @@ esp_err_t motor_stop(motor_h_t *m)
 esp_err_t motor_start(motor_h_t *m)
 {
     mcpwm_config_t pwm_config;
-    pwm_config.frequency = 1000 * FRECUENCY;    //frequency = 500Hz,
+    pwm_config.frequency = 15000 * FRECUENCY;    //frequency = 500Hz,
     pwm_config.cmpr_a = 0;    //duty cycle of PWMxA = 0
     pwm_config.cmpr_b = 0;    //duty cycle of PWMxb = 0
     pwm_config.counter_mode = MCPWM_UP_COUNTER;