Control Uno via Bluetooth and Hyperterminal Using Input File and Create Output PC File.
Use an input text file from the PC to control the Arduino Uno and process the data to an output text file located on the laptop or PC. Specific LEDs will light on and off depending upon the int numeric value read from the laptop or PC using Bluetooth. A response will be written back to the text output data file on the laptop or PC.
This is an older video and at that time I did not include the Fritzing wiring schematic or the step by step description of the sketch code. I have been storing the video clips .ino sketch files on my codebender site for your convenience. The file name will have the word "Bluetooth" in it, but this concept works for any one who wants to read/write to a laptop or PC using Bluetooth.
I am not sure this is the code I used. But you should be able to download the sketch here:
http://www.mediafire.com/file/p85fgj8...