Comments (3)
@mattjlewis Any idea why is this happening?
from diozero.
It seems that a bad cable was causing the issue.
The code I ended up using is:
private void listen() {
log("Started listening for RFID cards...");
try (MFRC522 mfrc522 = new MFRC522(0, 0, 22)) {
while (listen) {
rfidLoop(mfrc522);
SleepUtil.sleepSeconds(1);
}
}
}
private void rfidLoop(MFRC522 rfid) {
if (!rfid.isNewCardPresent()) {
log("No card found.");
return;
}
log("Card found!");
UID uid = rfid.readCardSerial();
if (uid == null) {
log("Failed to read UID");
return;
} else {
log("Read UID: " + ConversionTools.bytesToHex(uid.getUidBytes()) + "of type " + uid.getType().getName());
}
rfid.haltA();
rfid.stopCrypto1();
}
static void log(String message) {
MainClass.log(MainClass.ANSI_YELLOW + "RFID Sensor >> " + MainClass.ANSI_RESET + message);
}
from diozero.
Excellent, good to know. The MFRC522 code is pretty complex - I ported Arduino code to Java and TBH I've not tested it that much. I've also experienced a bad cable - I was pulling my hair out tying to work out why something wasn't working that had been working.
from diozero.
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from diozero.