I'm fairly new to Arduino (other than a 2 week course a few years ago).
I have quite a complex project and I'm basically just wanting to know if its possible. I want to read a QR code and then send the decoded string to a web page/server which would then check the decoded string and send back a boolean value to the Arduino board which should open a small valve(water) if true for a set period of time.
Is this possible. Thank you in advance for any advice, Ross