Maybe if you answered my questions, we’d have a much better idea of where the issue lies.
Pete.
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Did you mean, to add virtual terminal like that?
I don’t understand your question.
Pete.
Do you mean by adding such lcd to my schematic diagram?
No, an LCD is not a serial device.
The UNO has one hardware serial port (UART), and you are using that for communication with Blynk.
Your sketch creates a second serial port using SoftwareSerial, called DebugSerial, and instructs the Blynk library to send debug data to that port…
However, you don’t have anything connected to that port, so the data from it isn’t visible via a serial monitor.
If you did that then you would see valuable information from Blynk, and would also be able to use DebugSerial.print() statements to confirm your program flow, and be certain that the functions which are supposed to be triggering your notifications are actually being called.
Hence my questions…
Pete.
I’m sorry that i have no idea to answer the questions. Can you suggest me some documentation that i can gain my knowledge on that, or can you suggest me how to solve the problem? Thank you
I can’t really help you then.
Pete.