ljos/MFRC522

MFRC522 compiling error -please help

mark2019ski opened this issue · 2 comments

mark2019ski commented

Hello, I got my Arduino and I’m trying to set up a MFRC52210 system to open an electromagnetic lock for a false bottom drawer. I’m having an issue because when I hit compile on my Arduino sketch it gives me a error code, “error compiling for board Arduino/genuine Uno”. I’m not sure what to do I would really love some help. I am a beginner at this so I’m probably doing something wrong.

The exact error code that gives me is
fork/exec /Users/mark2019/Library/Arduino15/packages/arduino/tools/avr-gcc/4.9.2-atmel3.5.4-arduino2/bin/avr-g++: no such file or directory
Error compiling for board Arduino/Genuino Uno.

This is the code I’m using----

/* Start of Code */

/* Simple RFID Arduino Sketch(RC522)

Created by Yvan / https://Brainy-Bits.com
This code is in the public domain...
You can: copy it, use it, modify it, share it or just plain ignore it!
Thx!

The MFRC522 Library used, was created by LJOS here: https://github.com/ljos/MFRC522
The FastLED Library used, was created by focalintent here: https://github.com/FastLED/FastLED/releases

*/
#include <MFRC522.h> // Include of the RC522 Library
#include "FastLED.h" // Include of the FastLED library
#include <SPI.h> // Used for communication via SPI with the Module

// WS2812 RGB Stick connection
#define led_pin 5 // Pin 5 connected to DIN of RGB Stick
#define NUM_LEDS 8 // # of WS2812 LEDs on stick
CRGB leds[NUM_LEDS]; // FastLED Library Init

#define SDAPIN 10 // RFID Module SDA Pin is connected to the UNO 10 Pin
#define RESETPIN 8 // RFID Module RST Pin is connected to the UNO 8 Pin

#define Buzzer 3 // Pin 3 connected to + pin of the Buzzer

byte FoundTag; // Variable used to check if Tag was found
byte ReadTag; // Variable used to store anti-collision value to read Tag information
byte TagData[MAX_LEN]; // Variable used to store Full Tag Data
byte TagSerialNumber[5]; // Variable used to store only Tag Serial Number
byte GoodTagSerialNumber[5] = {0x95, 0xEB, 0x17, 0x53}; // The Tag Serial number we are looking for

MFRC522 nfc(SDAPIN, RESETPIN); // Init of the library using the UNO pins declared above

void setup() {
pinMode(Buzzer, OUTPUT); // Set buzzer pin to an Output pin
digitalWrite(Buzzer, LOW); // Buzzer Off at startup
SPI.begin();
Serial.begin(115200);

FastLED.addLeds<NEOPIXEL,led_pin>(leds, NUM_LEDS); // Setup FastLED Library
FastLED.clear();

// Start to find an RFID Module
Serial.println("Looking for RFID Reader");
nfc.begin();
byte version = nfc.getFirmwareVersion(); // Variable to store Firmware version of the Module

// If can't find an RFID Module
if (! version) {
Serial.print("Didn't find RC522 board.");
while(1); //Wait until a RFID Module is found
}

// If found, print the information about the RFID Module
Serial.print("Found chip RC522 ");
Serial.print("Firmware version: 0x");
Serial.println(version, HEX);
Serial.println();
}

void loop() {

// Light up starting LED's
for (int x = 0; x < 8; x++) {
leds[x] = CRGB::Blue;
}
FastLED.setBrightness(50);
FastLED.show();

String GoodTag="False"; // Variable used to confirm good Tag Detected

// Check to see if a Tag was detected
// If yes, then the variable FoundTag will contain "MI_OK"
FoundTag = nfc.requestTag(MF1_REQIDL, TagData);

if (FoundTag == MI_OK) {
delay(200);

// Get anti-collision value to properly read information from the Tag
ReadTag = nfc.antiCollision(TagData);
memcpy(TagSerialNumber, TagData, 4); // Write the Tag information in the TagSerialNumber variable

Serial.println("Tag detected.");
Serial.print("Serial Number: ");
for (int i = 0; i < 4; i++) { // Loop to print serial number to serial monitor
Serial.print(TagSerialNumber[i], HEX);
Serial.print(", ");
}
Serial.println("");
Serial.println();

// Check if detected Tag has the right Serial number we are looking for
for(int i=0; i < 4; i++){
if (GoodTagSerialNumber[i] != TagSerialNumber[i]) {
break; // if not equal, then break out of the "for" loop
}
if (i == 3) { // if we made it to 4 loops then the Tag Serial numbers are matching
GoodTag="TRUE";
}
}
if (GoodTag == "TRUE"){
Serial.println("Success!!!!!!!");
Serial.println();
for(int x = 0; x < 8; x++) {
leds[x] = CRGB::Green;
}
FastLED.show();
for (int y = 0; y < 3; y++){
digitalWrite (Buzzer, HIGH) ;// Buzzer On
delay (50) ;// Delay 1ms
digitalWrite (Buzzer, LOW) ;// Buzzer Off
delay (50) ;// delay 1ms
}
delay(1500);
}
else {
Serial.println("TAG NOT ACCEPTED...... :(");
Serial.println();
for(int x = 0; x < 8; x++) {
leds[x] = CRGB::Red;
}
FastLED.show();
for (int y = 0; y < 3; y++){
digitalWrite (Buzzer, HIGH) ;// Buzzer On
delay (300) ;// Delay 1ms
digitalWrite (Buzzer, LOW) ;// Buzzer Off
delay (400) ;// delay 1ms
}
delay(500);
}
}
}

/* End of Code */

per1234 commented

This error has nothing to do with the MFRC522 library. It's an Arduino IDE issue.

Ask on the Arduino Forum. I'm sure we'll be able to help you with your problem over there.

Please do this:

  1. Read http://forum.arduino.cc/index.php?topic=148850
  2. If you haven't already done so, create a new thread in the appropriate section of the forum (http://forum.arduino.cc/), following all the rules.