I have a PIC24FJ MCU with an FT232RL USB to UART controller. My design has end users opening a serial connection to my MCU to set parameters and get debug information.
My question is: How can I tell when the end user has opened
PuTTY/etc to my device's COM port?
From what I have read, the DTR signal is not a good way to go about this as the OS decides when to raise DTR.
My use case is that I would like to display a banner with help commands as soon as the COM port is opened.