arduino-RCS620S.zip が使用するシリアルポートを変更可能にする修正です。

RCS620S_port_selectable.diff

diff --git a/firmware/RCS620S/RCS620S.h b/firmware/RCS620S/RCS620S.h
index 9792859..f2a17c0 100644
--- a/firmware/RCS620S/RCS620S.h
+++ b/firmware/RCS620S/RCS620S.h
@@ -16,6 +16,15 @@
 #define RCS620S_MAX_CARD_RESPONSE_LEN    254
 #define RCS620S_MAX_RW_RESPONSE_LEN      265
 
+
+/*
+  for default Serial port, use Serial
+  for TX1/RX1,             use Serial1
+  for TX2/RX2,             use Serial2
+  for TX3/RX3,             use Serial3
+*/
+#define SERIAL_RCS620S Serial1
+
 /* --------------------------------
  * Class Declaration
  * -------------------------------- */
diff --git a/firmware/RCS620S/RCS620S.cpp b/firmware/RCS620S/RCS620S.cpp
index fe9eb01..bf0f776 100644
--- a/firmware/RCS620S/RCS620S.cpp
+++ b/firmware/RCS620S/RCS620S.cpp
@@ -309,7 +309,7 @@ void RCS620S::writeSerial(
     const uint8_t* data,
     uint16_t len)
 {
-    Serial.write(data, len);
+    SERIAL_RCS620S.write(data, len);
 }
 
 int RCS620S::readSerial(
@@ -324,8 +324,8 @@ int RCS620S::readSerial(
             return 0;
         }
 
-        if (Serial.available() > 0) {
-            data[nread] = Serial.read();
+        if (SERIAL_RCS620S.available() > 0) {
+            data[nread] = SERIAL_RCS620S.read();
             nread++;
         }
     }
@@ -335,7 +335,7 @@ int RCS620S::readSerial(
 
 void RCS620S::flushSerial(void)
 {
-    Serial.flush();
+    SERIAL_RCS620S.flush();
 }
 
 int RCS620S::checkTimeout(unsigned long t0)