use static timer for blink rockets

epicardium/modules/leds.c

@@ -129,6 +129,7 @@ int epic_leds_get_rocket(int led)
 	return ret;
 }
 
+static StaticTimer_t blink_timer_data[3];
 static TimerHandle_t blink_timer[] = { NULL, NULL, NULL };
 
 static void rocket_timer_callback(TimerHandle_t blink_timer)
@@ -142,12 +143,13 @@ void epic_leds_blink_rocket(int led, uint8_t value, int millis)
 	int ticks  = millis * (configTICK_RATE_HZ / 1000);
 	int32_t id = led;
 	if (blink_timer[id] == NULL) {
-		blink_timer[id] = xTimerCreate(
+		blink_timer[id] = xTimerCreateStatic(
 			"blinktimer",
 			ticks,
 			pdFALSE,
 			(void *)id,
-			rocket_timer_callback
+			rocket_timer_callback,
+                        &blink_timer_data[id]
 		);
 		epic_leds_set_rocket(led, value);
 	}