QWIIC RFID module stopped working, now returning lots of -1's

Qwiic System
1

When I bring a valid RFID tag close to the sensor, I hear the normal beep. However, there is no sign of the tag id when getting a list of tags via example 5 from the library. What’s weird is last time I used it, a few months ago, everything worked.

RFID Tag: -1-1-1-1-1-1 Scan Time: 4294967.50
RFID Tag: -1-1-1-1-1-1 Scan Time: 4294967.50
...16 more times...
RFID Tag: -1-1-1-1-1-1 Scan Time: 4294967.50
RFID Tag: -1-1-1-1-1-1 Scan Time: 4294967.50

Micro-controller: Sparkfun Blynk board

Help would be appreciated :slight_smile:

2

I know that you’ve already posted an issue in the Repo, so many thanks! If anyone else is interested in following along, you can do so here:

https://github.com/sparkfun/SparkFun_Qw … y/issues/2

Otherwise I’ll post back here when a solution is discovered.

3

It looks like a fix is in place: https://github.com/sparkfun/SparkFun_Qw … y/issues/2. The library for the Qwiic RFID was asking for more bytes than was necessary which was causing the Blynk board to act erratically.