Hello,
I am currently trying to write the code for this program and don't know how to start. I just want the RFID to wait and read a card and if it has the correct code, it turns on the relay until the card is removed and waits 30 seconds until it turns off.
I don't want to use a database, I want to so that the RFID reader looks for a certain code and once it sees that, it turns on. This way I can program the RFID card to contain that code and turns on that machine. Then I want to make it so that each machine has a different code so that one card will be able to be programmed so that it can turn on any number of the machines as I like without turn on others.
Thanks
Mitchell