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Asai Thambi
RF\SPI.cpp.o: In function `SPIClass::begin()’:
C:\Users\Mathi\Documents\Arduino\libraries\RF/SPI.cpp:24: undefined reference to `SPIClass::pinMode(unsigned char, unsigned char)’
C:\Users\Mathi\Documents\Arduino\libraries\RF/SPI.cpp:25: undefined reference to `SPIClass::pinMode(unsigned char, unsigned char)’
C:\Users\Mathi\Documents\Arduino\libraries\RF/SPI.cpp:26: undefined reference to `SPIClass::pinMode(unsigned char, unsigned char)’
C:\Users\Mathi\Documents\Arduino\libraries\RF/SPI.cpp:28: undefined reference to `SPIClass::digitalWrite(unsigned char, unsigned char)’
C:\Users\Mathi\Documents\Arduino\libraries\RF/SPI.cpp:29: undefined reference to `SPIClass::digitalWrite(unsigned char, unsigned char)’
C:\Users\Mathi\Documents\Arduino\libraries\RF/SPI.cpp:30: undefined reference to `SPIClass::digitalWrite(unsigned char, unsigned char)’
admin
Please provide more info/details on this error. What did you do, did you copied the library folder into proper folder etc.
markee albia
sir can i ask about the details of this project? i need some help for my school project..i dont what to buy and how much it will cost..
admin
It’s everything on the website, nothing more.
meheer
sir thankyou for helping me can you please tell where will the led be put
-regards meheer shukla
admin
it’s all in the code:
#define redLed 7
#define greenLed 6
#define blueLed 5
Eme
I am ready to buy… please how can I get code for MF522 and NC door lock latch and Adriano? send details to my email address.
admin
I’m not selling anything.
Matt
hello, thanks for great code. I have a question. Can I add card uid to eeprom from list befor upload this code? For example: eeprom.write(position,uid), eeprom.write(2,ABCDEFGH)
Ali
Im copied all code and library,but I have a this error.
C:\Users\ALI~1\AppData\Local\Temp\arduino_modified_sketch_137175\sketch_nov08a.ino: In function ‘boolean checkTwo(byte*, byte*)’:
C:\Users\ALI~1\AppData\Local\Temp\arduino_modified_sketch_137175\sketch_nov08a.ino:388:16: warning: NULL used in arithmetic [-Wpointer-arith]
if ( a[0] != NULL ) // Make sure there is something in the array first
^