add optional hardware uart num for esp32

Author: arduino12

library.json

@@ -1,6 +1,6 @@
 {
   "name": "rdm6300",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "keywords": "rdm6300, rfid",
   "description": "A simple library to interface with rdm6300 rfid reader.",
   "repository":

library.properties

@@ -1,5 +1,5 @@
 name=Rdm6300
-version=1.0.1
+version=1.0.2
 author=Arad Eizen
 maintainer=Arad Eizen <https://github.com/arduino12>
 sentence=A simple library to interface with rdm6300 rfid reader.

src/rdm6300.cpp

@@ -7,11 +7,11 @@
 #include <Arduino.h>
 
 
-void Rdm6300::begin(int rx_pin)
+void Rdm6300::begin(int rx_pin, uint8_t uart_nr)
 {
 	/* init serial port to rdm6300 baud, without TX, and 20ms read timeout */
 #ifdef ARDUINO_ARCH_ESP32
-	_serial = new HardwareSerial(1);
+	_serial = new HardwareSerial(uart_nr);
 	_serial->begin(RDM6300_BAUDRATE, SERIAL_8N1, rx_pin, -1);
 #else
 	_serial = new SoftwareSerial(rx_pin, -1);

src/rdm6300.h

@@ -3,25 +3,25 @@
  * Arad Eizen (https://github.com/arduino12) 23/09/18.
  */
 
-#ifndef RDM6300_h
-#define RDM6300_h
+#ifndef _RDM6300_h_
+#define _RDM6300_h_
 
 #ifdef ARDUINO_ARCH_ESP32
 	#include <HardwareSerial.h>
 #else
 	#include <SoftwareSerial.h>
 #endif
 
-#define RDM6300_PACKET_SIZE 14
-#define RDM6300_PACKET_BEGIN 0x02
-#define RDM6300_PACKET_END 0x03
-#define RDM6300_NEXT_READ_MS 220
-#define RDM6300_BAUDRATE 9600
+#define RDM6300_BAUDRATE		9600
+#define RDM6300_PACKET_SIZE		14
+#define RDM6300_PACKET_BEGIN	0x02
+#define RDM6300_PACKET_END		0x03
+#define RDM6300_NEXT_READ_MS	220
 
 class Rdm6300
 {
 	public:
-		void begin(int rxPin);
+		void begin(int rxPin, uint8_t uart_nr=1);
 		bool update(void);
 		uint32_t get_tag_id(void);
 		bool is_tag_near(void);