Add gps baud rate options

projecthorus · Nov 22, 2024 · 1aacd2f · 1aacd2f
1 parent 21ea764
commit 1aacd2f
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Showing 2 changed files with 7 additions and 3 deletions.
diff --git a/start_tx.sh b/start_tx.sh
@@ -19,10 +19,11 @@ TXFREQ=443.500
 # Allowed values are from 2 through 17 dBm.
 TXPOWER=17
 
-# GPS Port
+# GPS Port and baud rate
 # Note that we only support uBlox GPS units
 # set this to none to disable GPS support
 GPSPORT=/dev/ttyACM0
+GPSBAUD=115200
 
 # Image settings
 # Image scaling - Scale the 'native' image resolution of the attached camera by this much
@@ -89,7 +90,7 @@ sleep 10
 # --waitforlock 10      Wait for up to 10 minutes before timing out and continuing anyway
 # --lockcount 60        Wait for 60 sequential valid 3D fixed before exiting (2 Hz update rate, so 60 -> 30 seconds)
 # --locksats 6          Only consider a fix as valid if it has more than 6 SVs in use.
-#python3 ublox.py --waitforlock 10 --lockcount 60 --locksats 6 $GPSPORT
+#python3 ublox.py --waitforlock 10 --lockcount 60 --locksats 6 --baudrate $GPSBAUD $GPSPORT
 
 
 # Start the main TX Script.
@@ -125,6 +126,7 @@ python3 tx_picamera2_gps.py \
     --serial_port $SERIALPORT \
     --tx_power $TXPOWER \
     --gps $GPSPORT \
+    --gpsbaud $GPSBAUD \
     --resize $TX_IMAGE_SCALING \
     --whitebalance $WHITEBALANCE \
     --exposure $EXPOSURE \

diff --git a/tx/tx_picamera2_gps.py b/tx/tx_picamera2_gps.py
@@ -22,6 +22,7 @@
 parser = argparse.ArgumentParser()
 parser.add_argument("callsign", default="N0CALL", help="Payload Callsign")
 parser.add_argument("--gps", default="none", help="uBlox GPS Serial port. Defaults to /dev/ttyACM0")
+parser.add_argument("--gpsbaud", default=115200, type=int, help="uBlox GPS Baud rate. (Default: 115200)")
 parser.add_argument("--logo", default="none", help="Optional logo to overlay on image.")
 parser.add_argument("--rfm98w", default=0, type=int, help="If set, configure a RFM98W on this SPI device number.")
 parser.add_argument("--frequency", default=443.500, type=float, help="Transmit Frequency (MHz). (Default: 443.500 MHz)")
@@ -137,7 +138,8 @@ def handle_gps_data(gps_data):
 try:
 	if args.gps.lower() != 'none':
 		gps = ublox.UBloxGPS(port=args.gps, 
-			dynamic_model = ublox.DYNAMIC_MODEL_AIRBORNE1G, 
+			dynamic_model = ublox.DYNAMIC_MODEL_AIRBORNE1G,
+			baudrate= args.gpsbaud,
 			update_rate_ms = 1000,
 			debug_ptr = tx.transmit_text_message,
 			callback = handle_gps_data,