Im using ESP32 with PN532 NFC module with I2C And Im using this library https://github.com/elechouse/PN532 And using this documents https://www.elechouse.com/elechouse/images/product/PN532_module_V3/PN532_%20Manual_V3.pdf
Normally, it finds the PN532 and reads the card successfully when I scan it. However, sometimes after starting, it doesn't detect the PN532 and never finds it.It say PN53x card not found!. When I unplug and plug in the sensor cable, the ESP32 can detect the sensor, but I shouldn't have to do it this way. Therefore, if it can't find the PN532 twice, I wanted to reset it as follows:
void resetPN532() { digitalWrite(PNP532_IRQ_Pin, LOW); delay(100); digitalWrite(PNP532_IRQ_Pin, HIGH); delay(100); digitalWrite(PNP532_RSTO_Pin, LOW); delay(100); digitalWrite(PNP532_RSTO_Pin, HIGH); } This is code for the find:
` uint32_t versiondata = nfc.getFirmwareVersion(); if (Serial.available() > 0) { processCommand("command"); } if (!versiondata) { Serial.println("PN53x card not found!"); resetCounter++; if (resetCounter >= 2) { Serial.println("Reset PNP"); resetPN532(); resetCounter = 0; } return false; } ` This is my connections: enter image description here
Why I faced with this issue I dont know but how can I solve this problem ?
. When I unplug and plug in the sensor cable, the ESP32 can detect the sensor, but I shouldn't have to do it this way. Therefore, if it can't find the PN532 twice, I wanted to reset it as follows:
