rfid reader without checking uid

Author: tame0001

Diff for: game-engine/esp32-rfid/esp32-rfid.ino

@@ -0,0 +1,77 @@
+#include <MFRC522v2.h>
+#include <MFRC522DriverSPI.h>
+//#include <MFRC522DriverI2C.h>
+#include <MFRC522DriverPinSimple.h>
+#include <MFRC522Debug.h>
+#include "EspMQTTClient.h"
+
+MFRC522DriverPinSimple ss_pin(5); // Configurable, see typical pin layout above.
+
+MFRC522DriverSPI driver{ss_pin}; // Create SPI driver.
+//MFRC522DriverI2C driver{}; // Create I2C driver.
+MFRC522 mfrc522{driver};  // Create MFRC522 instance.
+
+uint32_t chipId = 0;
+EspMQTTClient client(
+  "DigitalAGclub",  // WiFi SSID at the maker space
+  "username",       // WiFi password
+  "192.168.0.100"  // MQTT Broker server IP
+);
+
+void onConnectionEstablished()
+// This function activate when connection is established with the broker
+{
+  Serial.printf("Connection Established\n");
+}
+
+void setup() {
+  Serial.begin(115200);  // Initialize serial communications with the PC for debugging.
+  while (!Serial);     // Do nothing if no serial port is opened (added for Arduinos based on ATMEGA32U4).
+  mfrc522.PCD_Init();  // Init MFRC522 board.
+  MFRC522Debug::PCD_DumpVersionToSerial(mfrc522, Serial);	// Show details of PCD - MFRC522 Card Reader details.
+  mfrc522.PCD_SetAntennaGain(0x70);
+	Serial.println(F("Scan PICC to see UID, SAK, type, and data blocks..."));
+  Serial.print(mfrc522.PCD_GetAntennaGain()); 
+  client.setWifiReconnectionAttemptDelay(5000);
+}
+
+void loop() {
+  client.loop();
+  if (!client.isConnected()) {
+    Serial.printf("WiFi Connection: %d\n", client.isWifiConnected());
+    Serial.printf("MQTT Connection: %d\n", client.isMqttConnected());
+    delay(1000);
+  }
+
+
+	// Reset the loop if no new card present on the sensor/reader. This saves the entire process when idle.
+	if ( !mfrc522.PICC_IsNewCardPresent()) {
+		return;
+	}
+
+	// Select one of the cards.
+	if ( !mfrc522.PICC_ReadCardSerial()) {
+		return;
+	}
+
+	// Dump debug info about the card; PICC_HaltA() is automatically called.
+  // MFRC522Debug::PICC_DumpToSerial(mfrc522, Serial, &(mfrc522.uid));
+
+  Serial.print(F("Card UID:"));
+  dump_byte_array(mfrc522.uid.uidByte, mfrc522.uid.size);
+  Serial.println();
+  delay(1000);
+  
+}
+
+/**
+ * Helper routine to dump a byte array as hex values to Serial.
+ */
+void dump_byte_array(byte *buffer, byte bufferSize) {
+    for (byte i = 0; i < bufferSize; i++) {
+        Serial.print(buffer[i] < 0x10 ? " 0" : " ");
+        Serial.print(buffer[i], HEX);
+    }
+
+    client.publish("purdue-dac/carrot", "Hello", false);
+}