change how lights tick

index.js

@@ -1,6 +1,7 @@
 import * as server from './server.js';
 import * as lights from './lights.js';
 
+const cfg = JSON.parse(fs.readFileSync('./config.json'));
 
 server.recv(
   (res) => {
@@ -11,6 +12,6 @@ server.recv(
   }
 );
 
-while (true) {
+setInterval(() => {
   lights.tick();
-}
+}, cfg.sleep_time || 500);

lights.js

@@ -84,7 +84,7 @@ export function tick() {
   else {
     ws281x.render(pixels);
   }
-  ws281x.sleep(cfg.sleep_time || 500);
+  //ws281x.sleep(cfg.sleep_time || 500);
 }
 
 function fade(index) {