The current vi I am attaching writes to the serial port once and the data receieved from the same serial port is read, parsed, and represented on the temperature/humidity graph. Here when I press the 'request' button, either '1' or '2' is written to the serial port. Now, I want to write '1' or '2' to the serial port at regular intervals of 5 minutes for 20 times; this will be done by just pressing a button 'request past hour temp/humidity' once.
Any help is appreciated.