89 lines
2.3 KiB
C++
89 lines
2.3 KiB
C++
#include "hardware_rfid.hpp"
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#include <Arduino.h>
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#include <SPI.h>
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// #define DEBUG_RFID
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#ifdef DEBUG_RFID
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#define LOG(msg) Serial.println(msg)
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#else
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#define LOG(msg)
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#endif
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HardwareRfid::HardwareRfid(uint8_t ssPin, uint8_t rstPin)
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: _mfrc(ssPin, rstPin) {}
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void HardwareRfid::begin() {
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LOG("RFID begin called");
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SPI.begin(); // Initialize SPI bus
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_mfrc.PCD_Init();
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// Verify MFRC522 hardware
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uint8_t version = _mfrc.PCD_ReadRegister(_mfrc.VersionReg);
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if (version == 0x00 || version == 0xFF) {
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LOG("ERROR: Failed to detect MFRC522 hardware. Check wiring or power.");
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} else {
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LOG("MFRC522 detected, version: 0x" + String(version, HEX));
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}
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// Optional: Set antenna gain for better range
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_mfrc.PCD_SetAntennaGain(_mfrc.RxGain_max);
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LOG("RFID initialized, antenna gain set to max");
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}
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void HardwareRfid::end() {
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LOG("RFID end called");
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SPI.end(); // Stop SPI bus
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}
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void HardwareRfid::update() {
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static unsigned long lastLog = 0;
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unsigned long now = millis();
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if (now - lastLog >= 1000) {
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LOG("RFID update called");
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lastLog = now;
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}
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// Check if a new card is present
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if (!_mfrc.PICC_IsNewCardPresent()) {
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if (now - lastLog >= 1000) {
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LOG("No new card present");
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}
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return;
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}
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// Try to read the card's serial number
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if (!_mfrc.PICC_ReadCardSerial()) {
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LOG("Failed to read card serial");
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return;
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}
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// Get the UID
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uint32_t cardId = 0;
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for (byte i = 0; i < _mfrc.uid.size; i++) {
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cardId = (cardId << 8) | _mfrc.uid.uidByte[i];
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}
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LOG("Card detected, UID: 0x" + String(cardId, HEX));
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// Create the message
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hardware_SensorToControlMessage msg = hardware_SensorToControlMessage_init_zero;
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msg.sensor_id = 0; // Assuming single sensor
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msg.which_payload = hardware_SensorToControlMessage_rfid_reading_tag;
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msg.payload.rfid_reading.card_id = cardId;
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// Call the callback if set
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if (_callback) {
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LOG("Callback is set, calling it with card ID: 0x" + String(cardId, HEX));
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_callback(msg);
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} else {
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LOG("Callback not set");
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}
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// Halt the card and stop crypto
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_mfrc.PICC_HaltA();
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_mfrc.PCD_StopCrypto1();
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}
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void HardwareRfid::setCallback(RfidCallback cb) {
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_callback = cb;
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LOG("RFID callback set");
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} |