diff --git a/node1.c b/node1.c
index 96c4479..4691fec 100644
--- a/node1.c
+++ b/node1.c
@@ -129,15 +129,10 @@ int main() {
   pms5003_init(&pms_config, uart1, 20, 21, 18, 19);
 
   struct repeating_timer timer_30;
-  // add_repeating_timer_ms(LOOP_INTERVAL_MS, cb_30, NULL, &timer_30);
-  absolute_time_t blink_time = make_timeout_time_ms(5000);
-  comms_led_blink();
+  add_repeating_timer_ms(LOOP_INTERVAL_MS, cb_30, NULL, &timer_30);
   while (true) {
-    if(time_reached(blink_time)) {
-      comms_led_blink();
-      blink_time = make_timeout_time_ms(5000);
-    }
     comms_led_update();
+    sleep_us(100);
     tight_loop_contents();
   }
 }