The firmware that’s on the Attiny can be found on the github page: https://github.com/sparkfun/SparkFun_Qwiic_RFID_ID-XXLA/tree/master/Firmware/ATtiny85_Firmware/Qwiic_RFID_IDXXLA
I changed it myself. Not exactly sure what I did. Could just be that I changed the number of readings from 20 to 1.
To do the reset I just wrote a function in my arduino code to toggle the reset pin on the reader after a certain number of succesfull readings, thus restarting the reader so it never reaches 20 readings.
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