Using a SoftwareSerial to communicate with RDM6300

README.md

@@ -137,9 +137,8 @@ The following table shows the typical pin layout used for connecting readers har
 | GPIO-13 | D7 | D0 | MOSI | MOSI | |
 | GPIO-12 | D6 | D1 | MISO | MISO | |
 | GPIO-14 | D5 | | SCK | SCK | |
-| GPIO-04 | D2 | | | |   |
+| GPIO-04 | D2 | | | | TX |
 | GPIO-05 | D1 | | SS | | |
-| GPIO-03 | RX | | | | TX |
 
 For Wiegand based readers, you can configure D0 and D1 pins via settings page. By default, D0 is GPIO-4 and D1 is GPIO-5
 

src/config.esp

@@ -141,6 +141,10 @@ bool ICACHE_FLASH_ATTR loadConfiguration(Config &config)
  rfidss = hardware["sspin"];
  setupPN532Reader(rfidss);
  }
+ else if (config.readertype > READER_PN532)
+ {
+ setupRDM6300Reader();
+ }
  config.fallbackMode = network["fallbackmode"] == 1;
  config.autoRestartIntervalSeconds = general["restart"];
  config.wifiTimeout = network["offtime"];

src/magicnumbers.h

@@ -26,6 +26,10 @@
 #define WIEGANDTYPE_PICC24 24
 #define WIEGANDTYPE_PICC34 34
 
+#define RDM6300_BAUDRATE 9600
+#define RDM6300_READ_TIMEOUT 20
+#define RDM6300_RX_PIN 4
+
 // hardware defines
 
 #define MAX_NUM_RELAYS 4

src/main.cpp

@@ -46,11 +46,13 @@ Config config;
 #include "PN532.h"
 #include <Wiegand.h>
 #include "rfid125kHz.h"
+#include <SoftwareSerial.h>
 
 MFRC522 mfrc522 = MFRC522();
 PN532 pn532;
 WIEGAND wg;
 RFID_Reader RFIDr;
+SoftwareSerial *rdm6300_sw_serial = NULL;
 
 // relay specific variables
 bool activateRelay[MAX_NUM_RELAYS] = {false, false, false, false};

src/rfid.esp

@@ -153,9 +153,9 @@ void pn532Read()
 
 void genericRead()
 {
- while (Serial.available() > 0)
+ while (rdm6300_sw_serial->available() > 0)
  {
- RFIDr.rfidSerial(Serial.read());
+ RFIDr.rfidSerial(rdm6300_sw_serial->read());
  }
  if (RFIDr.Available())
  {
@@ -566,3 +566,10 @@ void ICACHE_FLASH_ATTR setupPN532Reader(int rfidss)
  }
  } while (false);
 }
+
+void ICACHE_FLASH_ATTR setupRDM6300Reader()
+{
+ rdm6300_sw_serial = new SoftwareSerial(RDM6300_RX_PIN, -1);
+ rdm6300_sw_serial->begin(RDM6300_BAUDRATE);
+ rdm6300_sw_serial->setTimeout(RDM6300_READ_TIMEOUT);
+}