Arduino RFID tags giving different values

Using Arduino Sensors
1

Hi,

I am working on a project that uses an UHF RFID sensor to read and print the ID of UHF RFID tags which operate in 860 - 960 Mhz. My code does output an ID of a tag I scan but sometimes when I move the tag away from the sensors range and scan it again it outputs a different ID and there's even been occasions where if I leave the tag in front of the sensor it gives the same reading but it changes overtime.

Here's an example of the same tag changing its ID when I hold in front of the sensor:

Screenshot 2023-08-31 153122
Screenshot 2023-08-31 153122947×511 6.48 KB

Here is my code:

unsigned char incomingByte;

void setup() 
{
  Serial.begin(9600);  // Initialize hardware serial on RX: 0, TX: 1
  Serial.println("Start RFID read!\n");
}

void loop() 
{
  while (Serial.available() > 0) 
  {
    incomingByte = Serial.read();
    Serial.print(incomingByte, HEX);
    Serial.print(' ');
  }
  Serial.println();
  delay(1000); 
}

If anyone could let me know why I am facing these issues and how I can fix it, it would be much appreciated!

2

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.