182 lines
5.7 KiB
C++
182 lines
5.7 KiB
C++
/* Pin layout used:
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* -----------------------------------------------------------------------------------------
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* MFRC522 ESP32C6
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* Reader/PCD Feather
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* Signal Pin Pin
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* -----------------------------------------------------------------------------------------
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* SPI SS 1 SDA(SS) SDA/4
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* SPI SCK SCK SCK
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* SPI MOSI MOSI MOSI
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* SPI MISO MISO MISO
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*
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*/
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#include <WiFiManager.h> // https://github.com/tzapu/WiFiManager
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#include <HTTPClient.h>
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#include <MFRC522v2.h> // https://github.com/OSSLibraries/Arduino_MFRC522v2
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#include <MFRC522DriverSPI.h>
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#include <MFRC522DriverPinSimple.h>
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#include <MFRC522Debug.h>
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#define SS_PIN SDA
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#define RGB_BRIGHTNESS 4 // Change neopixel brightness (max 255)
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MFRC522DriverPinSimple ss_1_pin(SS_PIN); // Configurable, take an unused pin, only HIGH/LOW required, must be different to SS 2.
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MFRC522DriverSPI driver_1{ss_1_pin};
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MFRC522 reader{driver_1}; // Create MFRC522 instance.
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const char *rootCACertificate = R"string_literal(
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-----BEGIN CERTIFICATE-----
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MIIFazCCA1OgAwIBAgIRAIIQz7DSQONZRGPgu2OCiwAwDQYJKoZIhvcNAQELBQAw
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TzELMAkGA1UEBhMCVVMxKTAnBgNVBAoTIEludGVybmV0IFNlY3VyaXR5IFJlc2Vh
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cmNoIEdyb3VwMRUwEwYDVQQDEwxJU1JHIFJvb3QgWDEwHhcNMTUwNjA0MTEwNDM4
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WhcNMzUwNjA0MTEwNDM4WjBPMQswCQYDVQQGEwJVUzEpMCcGA1UEChMgSW50ZXJu
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ZXQgU2VjdXJpdHkgUmVzZWFyY2ggR3JvdXAxFTATBgNVBAMTDElTUkcgUm9vdCBY
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MTCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAK3oJHP0FDfzm54rVygc
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h77ct984kIxuPOZXoHj3dcKi/vVqbvYATyjb3miGbESTtrFj/RQSa78f0uoxmyF+
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0TM8ukj13Xnfs7j/EvEhmkvBioZxaUpmZmyPfjxwv60pIgbz5MDmgK7iS4+3mX6U
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A5/TR5d8mUgjU+g4rk8Kb4Mu0UlXjIB0ttov0DiNewNwIRt18jA8+o+u3dpjq+sW
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T8KOEUt+zwvo/7V3LvSye0rgTBIlDHCNAymg4VMk7BPZ7hm/ELNKjD+Jo2FR3qyH
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B5T0Y3HsLuJvW5iB4YlcNHlsdu87kGJ55tukmi8mxdAQ4Q7e2RCOFvu396j3x+UC
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B5iPNgiV5+I3lg02dZ77DnKxHZu8A/lJBdiB3QW0KtZB6awBdpUKD9jf1b0SHzUv
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KBds0pjBqAlkd25HN7rOrFleaJ1/ctaJxQZBKT5ZPt0m9STJEadao0xAH0ahmbWn
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OlFuhjuefXKnEgV4We0+UXgVCwOPjdAvBbI+e0ocS3MFEvzG6uBQE3xDk3SzynTn
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jh8BCNAw1FtxNrQHusEwMFxIt4I7mKZ9YIqioymCzLq9gwQbooMDQaHWBfEbwrbw
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qHyGO0aoSCqI3Haadr8faqU9GY/rOPNk3sgrDQoo//fb4hVC1CLQJ13hef4Y53CI
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rU7m2Ys6xt0nUW7/vGT1M0NPAgMBAAGjQjBAMA4GA1UdDwEB/wQEAwIBBjAPBgNV
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HRMBAf8EBTADAQH/MB0GA1UdDgQWBBR5tFnme7bl5AFzgAiIyBpY9umbbjANBgkq
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hkiG9w0BAQsFAAOCAgEAVR9YqbyyqFDQDLHYGmkgJykIrGF1XIpu+ILlaS/V9lZL
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ubhzEFnTIZd+50xx+7LSYK05qAvqFyFWhfFQDlnrzuBZ6brJFe+GnY+EgPbk6ZGQ
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3BebYhtF8GaV0nxvwuo77x/Py9auJ/GpsMiu/X1+mvoiBOv/2X/qkSsisRcOj/KK
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NFtY2PwByVS5uCbMiogziUwthDyC3+6WVwW6LLv3xLfHTjuCvjHIInNzktHCgKQ5
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ORAzI4JMPJ+GslWYHb4phowim57iaztXOoJwTdwJx4nLCgdNbOhdjsnvzqvHu7Ur
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TkXWStAmzOVyyghqpZXjFaH3pO3JLF+l+/+sKAIuvtd7u+Nxe5AW0wdeRlN8NwdC
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jNPElpzVmbUq4JUagEiuTDkHzsxHpFKVK7q4+63SM1N95R1NbdWhscdCb+ZAJzVc
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oyi3B43njTOQ5yOf+1CceWxG1bQVs5ZufpsMljq4Ui0/1lvh+wjChP4kqKOJ2qxq
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4RgqsahDYVvTH9w7jXbyLeiNdd8XM2w9U/t7y0Ff/9yi0GE44Za4rF2LN9d11TPA
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mRGunUHBcnWEvgJBQl9nJEiU0Zsnvgc/ubhPgXRR4Xq37Z0j4r7g1SgEEzwxA57d
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emyPxgcYxn/eR44/KJ4EBs+lVDR3veyJm+kXQ99b21/+jh5Xos1AnX5iItreGCc=
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-----END CERTIFICATE-----
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)string_literal";
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void read_card(char reader_uid[]);
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void send_uid(char reader_uid[]);
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void setup() {
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#ifdef DEBUG
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Serial.begin(115200);
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while (!Serial) delay(10);
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#endif
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reader.PCD_Init(); // Init each MFRC522 card.
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#ifdef DEBUG
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MFRC522Debug::PCD_DumpVersionToSerial(reader, Serial); // Show details of PCD - MFRC522 Card Reader details.
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#endif
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}
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void loop() {
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if (reader.PICC_IsNewCardPresent() && reader.PICC_ReadCardSerial()) {
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char reader_uid[32] = "";
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readCard(reader_uid);
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sendUid(reader_uid);
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}
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else {
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delay(200);
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}
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}
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void readCard(char reader_uid[]) {
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reader.PICC_HaltA();
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reader.PCD_StopCrypto1();
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byte_to_string(reader.uid.uidByte, 4, reader_uid);
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#ifdef DEBUG
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Serial.println(reader_uid);
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#endif
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displaySuccess();
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}
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void sendUid(char reader_uid[]) {
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connectToWifi();
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postUid(reader_uid);
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}
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void connectToWifi() {
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WiFiManager wm;
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bool res;
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res = wm.autoConnect("KLUK"); // password protected ap
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if(!res) {
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#ifdef DEBUG
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Serial.println("Failed to connect");
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#endif
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displayError();
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// ESP.restart();
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}
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else {
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//if you get here you have connected to the WiFi
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#ifdef DEBUG
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Serial.println("connected...yeey :)");
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#endif
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}
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}
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void postUid(char reader_uid[]) {
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NetworkClientSecure *client = new NetworkClientSecure;
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client->setCACert(rootCACertificate);
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HTTPClient https;
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#ifdef DEBUG
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Serial.print("[HTTPS] begin...\n");
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#endif
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// configure traged server and url
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https.begin("https://mood.robiweb.net/rfid_tags"); // HTTP
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https.addHeader("Content-Type", "application/json");
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// start connection and send HTTP header and body
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int httpCode = https.POST("{\"identifier\":\"" + String(reader_uid) + "\"}");
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#ifdef DEBUG
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Serial.print("httpCode: ");
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Serial.println(httpCode);
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#endif
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if (httpCode > 0) {
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if (httpCode == HTTP_CODE_CREATED) {
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} else {
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#ifdef DEBUG
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Serial.println("Remote error while sending uid");
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#endif
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displayError();
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}
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} else {
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#ifdef DEBUG
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Serial.print("Remote error while sending uid");
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#endif
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displayError();
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}
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https.end();
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#ifdef DEBUG
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Serial.print("[HTTPS] ended...\n");
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#endif
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}
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void byte_to_string(byte array[], unsigned int len, char buffer[]) {
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for (unsigned int i = 0; i < len; i++)
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{
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byte nib1 = (array[i] >> 4) & 0x0F;
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byte nib2 = (array[i] >> 0) & 0x0F;
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buffer[i*2+0] = nib1 < 0xA ? '0' + nib1 : 'A' + nib1 - 0xA;
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buffer[i*2+1] = nib2 < 0xA ? '0' + nib2 : 'A' + nib2 - 0xA;
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}
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buffer[len*2] = '\0';
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}
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void displayError() {
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rgbLedWrite(RGB_BUILTIN, RGB_BRIGHTNESS, 0, 0); // Red
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delay(1000);
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}
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void displaySuccess() {
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rgbLedWrite(RGB_BUILTIN, 0, RGB_BRIGHTNESS, 0); // Green
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delay(1000);
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}
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