I'm trying to get an NFC reader (PN532 module, HW-147C model) working with my ESP32C6 using SPI. I tried using multiple libraries (seeed-studio, Adafruit, and some on github, but nothing worked).
This is the wiring (not my picture but this is how it is) (the switch are 1 up and 2 down)
I've been running the Example in NDEF library (readtag). When I upload the Seeed-Studio example iso14443a_uid.ino (with CS pin set to GPIO5), the Serial Monitor shows:
The module is not being detected. The power LED on the PN532 is lit (red light), indicating the module has power
Does anyone know how to solve this issue?
yes the wiring definetly changed.
For the code I'm using the example code that doesnt ask to define pins
/**************************************************************************/
/*!
This example will attempt to connect to an ISO14443A
card or tag and retrieve some basic information about it
that can be used to determine what type of card it is.
Note that you need the baud rate to be 115200 because we need to print
out the data and read from the card at the same time!
To enable debug message, define DEBUG in PN532/PN532_debug.h
*/
/**************************************************************************/
/* When the number after #if set as 1, it will be switch to SPI Mode*/
#if 0
#define NFC_INTERFACE_SPI
#include <SPI.h>
#include <PN532_SPI.h>
#include <PN532_SPI.cpp>
#include "PN532.h"
PN532_SPI pn532spi(SPI);
PN532 nfc(pn532spi);
/* When the number after #elif set as 1, it will be switch to HSU Mode*/
#elif 0
#define NFC_INTERFACE_HSU
#include <PN532_HSU.h>
#include <PN532_HSU.cpp>
#include <PN532.h>
PN532_HSU pn532hsu(Serial1);
PN532 nfc(pn532hsu);
/* When the number after #if & #elif set as 0, it will be switch to I2C Mode*/
#else
#define NFC_INTERFACE_I2C
#include <Wire.h>
#include <PN532_I2C.h>
#include <PN532_I2C.cpp>
#include <PN532.h>
PN532_I2C pn532i2c(Wire);
PN532 nfc(pn532i2c);
#endif
void setup(void) {
Serial.begin(115200);
Serial.println("Hello!");
nfc.begin();
uint32_t versiondata = nfc.getFirmwareVersion();
if (! versiondata) {
Serial.print("Didn't find PN53x board");
while (1); // halt
}
// Got ok data, print it out!
Serial.print("Found chip PN5"); Serial.println((versiondata>>24) & 0xFF, HEX);
Serial.print("Firmware ver. "); Serial.print((versiondata>>16) & 0xFF, DEC);
Serial.print('.'); Serial.println((versiondata>>8) & 0xFF, DEC);
// Set the max number of retry attempts to read from a card
// This prevents us from waiting forever for a card, which is
// the default behaviour of the PN532.
nfc.setPassiveActivationRetries(0xFF);
// configure board to read RFID tags
nfc.SAMConfig();
Serial.println("Waiting for an ISO14443A card");
}
void loop(void) {
boolean success;
uint8_t uid[] = { 0, 0, 0, 0, 0, 0, 0 }; // Buffer to store the returned UID
uint8_t uidLength; // Length of the UID (4 or 7 bytes depending on ISO14443A card type)
// Wait for an ISO14443A type cards (Mifare, etc.). When one is found
// 'uid' will be populated with the UID, and uidLength will indicate
// if the uid is 4 bytes (Mifare Classic) or 7 bytes (Mifare Ultralight)
success = nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A, &uid[0], &uidLength);
if (success) {
Serial.println("Found a card!");
Serial.print("UID Length: ");Serial.print(uidLength, DEC);Serial.println(" bytes");
Serial.print("UID Value: ");
for (uint8_t i=0; i < uidLength; i++)
{
Serial.print(" 0x");Serial.print(uid[i], HEX);
}
Serial.println("");
// Wait 1 second before continuing
delay(1000);
}
else
{
// PN532 probably timed out waiting for a card
Serial.println("Timed out waiting for a card");
}
}
I put the dip switches in 01 and it didnt work.
There should be no problem with the soldering. I'm trying everything I find but the cheap just seem to not be detected
I got the same problem. Them I switched the SDA and the SCK jumpers an it worked just fine. I my case they make the device with the SDA and SCK with swapped places
The problem is that you still have wiring or dip-switch error.
Scan should give 0x24 when everything is correct.
Try flipping the dip switches 1/0 or 0/1, if it doesn't solve the issue, post high quality photo presenting your pin soldering.
I can't tell from the images if your soldering is sufficient. At least control VCC and SDA , doesn't look so good.
Also, vcc and scl have both white wires, easy to make mistake and fry something.
