84 lines
1.8 KiB
C++
84 lines
1.8 KiB
C++
#include <WiFi.h>
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#include <HTTPClient.h>
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#include<SPI.h>
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#include <MFRC522.h>
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#define SS_PIN 5
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#define RST_PIN 9//not used for esp32
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byte readCard[4];
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MFRC522 mfrc522(SS_PIN, RST_PIN);
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const char* ssid = "TL";
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const char* password = "a6de45eae0632f44de6a92511e";
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const char* serverName = "https://informatik.hs-bremerhaven.de/online/qrcorona/weiterverarbeiten.php";
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int freq = 2000;
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int channel = 0;
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int resolution = 8;
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void sendData(String key) {
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HTTPClient http;
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http.begin(serverName);
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http.addHeader("Content-Type", "application/x-www-form-urlencoded");
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String httpRequestData = String("roomname=TestRaum&fromtime=12:34&totime=12:35&qr="+key);
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int httpResponseCode = http.POST(httpRequestData);
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Serial.println(httpResponseCode);
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}
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void setup() {
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Serial.begin(115200);
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delay(10);
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Serial.println();
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Serial.print("Verbinde zu: ");
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Serial.println(ssid);
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// Bring Up Wifi
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WiFi.begin(ssid, password);
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while (WiFi.status() != WL_CONNECTED) {
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delay(100);
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Serial.print(".");
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}
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Serial.println();
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Serial.print("IP: ");
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Serial.println(WiFi.localIP());
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// init RFID
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SPI.begin();
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mfrc522.PCD_Init();
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// Piep
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// ledcSetup(channel, freq, resolution);
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// ledcAttachPin(27, channel);
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// for (int i = 0; i<20000; i=i+100){
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// ledcWriteTone(channel, i);
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// Serial.println(i);
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// delay(200);
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// }
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}
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void loop() {
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if(WiFi.status()== WL_CONNECTED){
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if ( ! mfrc522.PICC_IsNewCardPresent()) {
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return;
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}
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if ( ! mfrc522.PICC_ReadCardSerial()) {
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return;
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}
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String CardID="";
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Serial.println(F("Scanned PICC's UID:"));
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for ( uint8_t i = 0; i < 4; i++) {
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readCard[i] = mfrc522.uid.uidByte[i];
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Serial.print(readCard[i], HEX);
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CardID=CardID+String(readCard[i], HEX);
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}
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sendData(CardID);
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Serial.println("");
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mfrc522.PICC_HaltA();
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}
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} |