send new line

main.py

@@ -161,6 +161,7 @@ def application(env, start_response):
 
         start_response("200 OK", [('Content-Type', 'application/json')])
         print(arduino.write(message.encode()))
+        arduino.write(b'\n')
         return [json.dumps(message).encode()]
 
     if env["PATH_INFO"] == "/temps.json":