diff --git a/platformio.ini b/platformio.ini
index 6471c7b..8b6401a 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -292,6 +292,9 @@ build_flags =
 	-DARDUINO_LILYGO_T3_S3_V1_X
 	-DARDUINO_USB_MODE=1
 	-DLOG_DATA_JSON=1
+	-DTX_PIN=12 # TX pin on the Lora board, hook up to RX pin on Pi
+	-DRX_PIN=16 # not used but still need to be defined
+	-DSEEK_ON_X=1 # seek on X, so use HW serial port to log JSON
 
 [env:seek-on-mavic-lr1121]
 platform = espressif32
@@ -322,6 +325,9 @@ build_flags =
 	-DARDUINO_LILYGO_T3_S3_V1_X
 	-DARDUINO_USB_MODE=1
 	-DLOG_DATA_JSON=1
+	-DTX_PIN=12 # TX pin on the Lora board, hook up to RX pin on Pi
+	-DRX_PIN=16 # not used but still need to be defined
+	-DSEEK_ON_X=1 # seek on X, so use HW serial port to log JSON
 
 [env:native]
 platform = native
diff --git a/src/main.cpp b/src/main.cpp
index 39e80bf..aa63139 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -235,13 +235,11 @@ uint64_t scan_start_time = 0;
 // platformio config flag -DLOG_DATA_JSON
 // #define LOG_DATA_JSON true
 
+#ifdef SEEK_ON_X
 #define SERIAL_PORT 1
 
-#define TX_PIN 12
-#define RX_PIN 16 // not used
-
-// Create HardwareSerial instance (UART 1 or 2)
 HardwareSerial SerialPort(SERIAL_PORT);
+#endif
 
 // #define WEB_SERVER true
 
@@ -795,11 +793,19 @@ void logToSerialTask(void *parameter)
                 continue;
             }
 
+#ifdef SEEK_ON_X
             SerialPort.printf("{\"low_range_freq\": %" PRIu64
                               ", \"high_range_freq\": %" PRIu64 ", "
                               "\"value\": \"%" PRIi16 "\"}\n",
                               frequency_scan_result.begin, frequency_scan_result.end,
                               highest_value_scanned);
+#else
+            Serial.printf("{\"low_range_freq\": %" PRIu64
+                          ", \"high_range_freq\": %" PRIu64 ", "
+                          "\"value\": \"%" PRIi16 "\"}\n",
+                          frequency_scan_result.begin, frequency_scan_result.end,
+                          highest_value_scanned);
+#endif
         }
     }
 }
@@ -969,10 +975,12 @@ void setup(void)
 #ifdef LOG_DATA_JSON
     Serial.begin(115200);
 
-    // Initialize custom Serial port
+#ifdef SEEK_ON_X
+    // Initialize custom Serial port on the hardware using pins
     // Parameters: baud rate, serial config, RX pin, TX pin
     SerialPort.begin(115200, SERIAL_8N1, RX_PIN, TX_PIN);
 #endif
+#endif
 
 #ifdef LILYGO
     setupBoards(); // true for disable U8g2 display library