fix RX & TX

ladyada · ladyada · commit 0aa44475e970 · 2019-12-24T17:34:37.000-05:00
diff --git a/variants/itsybitsy_nrf52840_express/variant.h b/variants/itsybitsy_nrf52840_express/variant.h
@@ -89,8 +89,8 @@ static const uint8_t A6  = PIN_A6 ;
  * Serial interfaces
  */
 // Serial
-#define PIN_SERIAL_RX       (1)
-#define PIN_SERIAL_TX       (0)
+#define PIN_SERIAL_RX       (0)
+#define PIN_SERIAL_TX       (1)
 
 /*
  * SPI Interfaces
