diff --git a/platformio.ini b/platformio.ini
index 4c61ca0..7225048 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -294,10 +294,11 @@ build_flags =
 	-DARDUINO_USB_MODE=1
 	-DLOG_DATA_JSON=1
 	-DSERIAL_OUT
-	-DTX_PIN=12 # TX pin on the Lora board, hook up to RX pin on Pi
+	-DTX_PIN=43 # 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
 	-DBANDWIDTH=4.8
+	-DDISABLE_SDCARD
 
 [env:seek-on-mavic-lr1121]
 platform = espressif32
@@ -329,10 +330,11 @@ build_flags =
 	-DARDUINO_USB_MODE=1
 	-DLOG_DATA_JSON=1
 	-DSERIAL_OUT
-	-DTX_PIN=12 # TX pin on the Lora board, hook up to RX pin on Pi
+	-DTX_PIN=43 # 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
 	-DBANDWIDTH=4.8
+	-DDISABLE_SDCARD
 
 [env:native]
 platform = native