Question
Afternoon
Can I get some help just recently bought an Arduino nano, rfid card reader, and led
I need help with codes to
*When an rfid reader detects a card it lights an led
*When it can't detects a card it delays for 2minutes and led blinks before turning it off
And can you like register or man a rfid card reader only accept one card
How did your rfid card reader work when you tried example code without modification in your effort to learn about how to write code for it?
a7
Hi @lizotose,
welcome to the arduino-forum.
The microcontroller-world is not superstandardised like USB-devices.
You have to take care of more things than just
"does the plug fit into the socket?"
You should post detail-information about your RFID-reader.
what kind of interface does your RFID-reader have
Serial?
I2C?
SPI?
What voltage-levels? 3.3V ? or 5V?
Which reader-chip is on your RFID-reader? RC522? or PN532?
From all these questions I hope you understand that you should post more information.
I'm pretty sure that you agree and will follow the way how to solve your problem mimimum 200 minutes faster. This requires to invest 20 minutes of your precious time to read how to speedup solving your problems.
Directly after registering you got presented informations how to speed up solving your problem.
You should really read it.
best regards Stefan