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Hello. I can't connect Arduino Mega and HC-05 with Virtuino. I do everything as shown here: https://virtuino.com/index.php/virtuino/...h-tutorial , but the application does not respond in any way.  If you write a simple sketch for the terminal, and run the Bluetooth terminal on Android, then it works. So the modules are working. Tell me what I can do wrong. Thanks.
Hi,
you have to follow the instructionsof this video tutorial:
https://youtu.be/5OSOpOScMAA

You have to check the baud rate of the Serial port. It has to be the same with the baud rate of the bluetooth module.
If you can't see anything in the Serial monitor it is possible there is no communication between arduino board and bluetooth module.