Oh okay! The SD.h lib seems to be straight forward - i’ll go for that…
Well my project going as following:
We are some students at my class who have a refrigerator with sodas, but the problem is that some people “forget” to note down when they take a soda == no money.
So i what to make RFID based system… Everyone have they own RFID tag. Scans it, the system verifies the tag, the refrigerator open its lock, the student takes a soda, press a button corresponding to what soda it is, the RFID tag - time - and what button is pressed is logged on the SD card! Everything will be printed on a LCD…
I know there is some “what if” errors… Like what if a student take two or more sodas when the door is open and more… But i dont really care right now 