...hardcoding your Blynk credentials in Mega 1280, Mega 2560...
DoubleResetDetector_Generic library v1.8.0+ for other boards (not ESP32 or ESP8266). To install. check .Functional-Vlpp library v1.0.2+ to use server's lambda function. To install. check ArduinoBearSSL library for SSL (not working yet)...