[M] Move files

CardReader/src/main.cpp

@@ -0,0 +1,121 @@
+#include <Arduino.h>
+
+#include <Wire.h>
+#include <PN532_I2C.h>
+#include <PN532.h>
+#include <FastLED.h>
+#include <types.h>
+
+constexpr u8 NUM_LEDS = 7;
+constexpr u8 BR_DIM = 8;
+constexpr u8 BR_BRIGHT = 14;
+CRGB leds[NUM_LEDS];
+
+PN532_I2C pn532i2c(Wire);
+PN532 nfc(pn532i2c);
+
+constexpr u8 UID_LENGTH = 8;
+u8 prevIDm[UID_LENGTH];
+u32 prevTime;
+
+void setup()
+{
+    // Add initial delay to allow the serial monitor to catch up
+    delay(500);
+
+    // Initialize serial port
+    USBSerial.begin(115200);
+    USBSerial.println("Hello!");
+
+    // Initialize I2C communication
+    Wire.setPins(GPIO_NUM_4, GPIO_NUM_5);
+
+    // Initialize the LED
+    CFastLED::addLeds<NEOPIXEL, GPIO_NUM_6>(leds, NUM_LEDS);
+    FastLED.setBrightness(BR_DIM);
+
+    // Find the PN532 NFC module
+    nfc.begin();
+    u32 versiondata;
+    while ((versiondata = nfc.getFirmwareVersion()) == 0)
+    {
+        USBSerial.println("Didn't find PN53x board");
+        delay(100);
+    }
+
+    // Got ok data, print it out!
+    USBSerial.print("Found chip PN5");
+    USBSerial.println(versiondata >> 24 & 0xFF, HEX);
+    USBSerial.print("Firmware ver. ");
+    USBSerial.print(versiondata >> 16 & 0xFF, DEC);
+    USBSerial.print('.');
+    USBSerial.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);
+    nfc.SAMConfig();
+
+    // Clear the IDm buffer
+    memset(prevIDm, 0, UID_LENGTH);
+}
+
+void led_animation()
+{
+    FastLED.setBrightness(BR_BRIGHT);
+    CRGB colors[] = {CRGB::LimeGreen, CRGB::Black, CRGB::Gold, CRGB::Black};
+
+    for (const auto color : colors)
+    {
+        for (u8 i = 1; i < NUM_LEDS; i++)
+        {
+            leds[i] = color;
+            FastLED.show();
+            delay(35);
+        }
+    }
+
+    FastLED.setBrightness(BR_DIM);
+}
+
+void foundCard(const u8* uid, const u8 len, const char* cardType)
+{
+    // Check if the same card is present
+    if (memcmp(uid, prevIDm, UID_LENGTH) == 0 && millis() - prevTime < 3000)
+    {
+        delay(5);
+        return;
+    }
+
+    USBSerial.printf("\nFound a %s card!\n", cardType);
+    USBSerial.print("UID Value: ");
+    for (u8 i = 0; i < len; i++)
+        USBSerial.print(uid[i], HEX);
+    USBSerial.println("");
+
+    led_animation();
+
+    memcpy(prevIDm, uid, UID_LENGTH);
+    prevTime = millis();
+}
+
+void loop()
+{
+    u8 idm[UID_LENGTH] = {0};
+    u8 pmm[8];
+    u16 systemCode;
+
+    // Wait for an FeliCa type cards.
+    // When one is found, some basic information such as IDm, PMm, and System Code are retrieved.
+    leds[0] = CRGB::BlueViolet;
+    FastLED.show();
+    if (nfc.felica_Polling(0xFFFF, 0x00, idm, pmm, &systemCode, 5) == 1)
+        foundCard(idm, UID_LENGTH, "FeliCa");
+
+    // Wait for an ISO14443A type cards (MIFARE, etc.).  When one is found
+    u8 uidLength;
+    leds[0] = CRGB::OrangeRed;
+    FastLED.show();
+    if (nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A, idm, &uidLength, 5) == 1)
+        foundCard(idm, uidLength, "ISO14443A");
+}