My project to periodic read virtual pin can be applied by both read_handler and read_virtual_pin_handler functions. What is it different to be used exactly?
It wold be helpful if you re-worded your question, and explained more about what it is that you’re trying to achieve.
As it stands, your question is rather ambiguous and it would be much easier to answer if you clarified the question and supplied some context.
Thank you for your prompt response again. I’d like to say sorry for my misunderstanding to raise this stupid question. Both of them are not keyword in Blynk, they can be any. Please ignore this stupid question and close this case.