`I plugged in the red FTDI chip into my NyBoard 2.0 and then plugged it in via micro usb to my computer, Rx and Tx blinked for a second and power remained lit, but then I heard a high pitched squealing noise coming from one of the board (unclear which one) and one of the other lights aside from the power lights remained on. I quickly unpowered it so as not to damage it further, any idea what happened and how I can properly set it up?
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No sketch is needed to setup FTDI. NyBoard is basically an Arduino pro mini at 20 MHz. https://www.google.com/amp/s/alselectro.wordpress.com/2017/05/14/arduino-pro-mini-how-to-upload-code/amp/