Hello, I'm new at Arduino programming, I am trying to make a project that disable some sensor while rfid card is tapped one time and activate them when second time tapped. I need a piece of sample to understand how to do that.
have a look at the examples for the library (MFRC522 and other RFID RC522 based modules)
Hi,
The purpose of the forum is to help with difficulties and not to write code.
Post, (using the appropriate </> tags), your best attempt at code for your project, even if it doesn't work as you need it to, and someone might be able to help you out.
Exactly what sensors and why do you want to disable them?
It is normal to just ignore them rather than disable them.
If you keep a count of how many taps you have had, the the least significant bit of that number will tell you if you have an odd or even number. So all you need to do before looking at the sensors is to use an if statement
if(tapCount & 0x01) {
// put code in here that does stuff with your sensors.
}
You will have to declare an int variable called tapCount at the start of you code just before the setup function, and increment it where you successfully detect a tap of your card.
exactly is for a car alarm system that i use a tap sensor and i want to auto deactivated when the the reader reads the uid while i am going to start driving .
thank you for your answer it really helps me