Hi, I have built a circuit that each time the user uses it, it does a calculation and outputs the value on an LCD. Its really a big exercise so i can learn about avr’s.
I want to extend it so that it also sends the value wirelessly to a laptop, which saves the values in a text file or better, excel file, if someone knows how to do that!
I have seen the Receiver/transmitters you can buy on spark fun, and they look perfect - simple etc etc.
I dont understand though quite how you output a value to a pin, which is connected to the transmitter. I only understand how to set the pin high or low.
I should also have a starting and finishing code so that the recevier knows somethings coming?
At the receiver end:
Receiver - avr - Serial - laptop?