I was struggling with removing 'delay' and substituting with a simple FSM, but it quickly got out of hand once I got beyond a simple demo, so your framework is absolutely great for parallel activities - thanks! I have an existing simple ESP8266WebServer-based website showing some readings. It uses AJAX to update sensor data to avoid whole page refresh. Do you have any suggestions about where to start this sort of thing using your framework? TIA @tinkerspy