From a5d8b49f38ab727cc9f3dd45506e0e840f30799d Mon Sep 17 00:00:00 2001
From: Alan Johnston <alan.b.johnston@gmail.com>
Date: Fri, 13 Mar 2026 17:59:33 -0400
Subject: [PATCH] Update pacsatsim.sh add safe mode

---
 pacsatsim.sh | 47 ++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 40 insertions(+), 7 deletions(-)

diff --git a/pacsatsim.sh b/pacsatsim.sh
index bf489175..48826249 100755
--- a/pacsatsim.sh
+++ b/pacsatsim.sh
@@ -4,6 +4,8 @@
 
 loopback=0
 vox=0
+safe=0
+
 if [ "$1" = "l" ] ; then
 
   loopback=1
@@ -14,6 +16,13 @@ elif [ "$1" = "v" ] ; then
   
 fi  
 
+FILE=/home/pi/CubeSatSim/battery_saver
+if [ -f "$FILE" ]; then
+
+  safe=1
+  
+fi  
+
 if [ ! -d "/home/pi/PacSat" ]; then
 
   echo "Setting up PacSatSim default configuration"
@@ -71,8 +80,6 @@ if [ ! "$callsign" = "$oldcallsign" ] ; then
   
 fi
 
-
-
 sudo /etc/init.d/alsa-utils stop
 sudo /etc/init.d/alsa-utils start
 
@@ -141,25 +148,51 @@ echo
 
 sudo usermod -a -G gpio pi
 
-if [ "$loopback" = "1" ]; then
+if [ "$safe" = "1" ] ; then
+
+  echo "Safe mode - battery saver"
+#  sudo /home/pi/CubeSatSim/pacsatsim-d.sh &
+
+  direwolf -P+ -D1 -qd -dp -r 48000 -c /home/pi/CubeSatSim/direwolf/direwolf-pacsatsim-pwm-loopback.conf -t 0 &
+
+  arecord -D plughw:CARD=Loopback,DEV=1 -f S16_LE -r 48000 -c 1 | csdr convert_s16_f | csdr gain_ff 4000 | csdr convert_f_samplerf 20833 | sudo rpitx -i- -m RF -f 434900 &
+
+
+elif [ "$loopback" = "1" ] ; then
 
   echo "Using audio loopback"
-  sudo /home/pi/CubeSatSim/pacsatsim-d.sh &
+#  sudo /home/pi/CubeSatSim/pacsatsim-d.sh &
+
+  direwolf -P+ -D1 -qd -dp -r 48000 -c /home/pi/CubeSatSim/direwolf/direwolf-pacsatsim-loopback.conf -t 0 &
 
 elif [ "$vox" = "1" ]; then
 
   echo "Using Soundcard Audio TX and RX (VOX)"
-  sudo /home/pi/CubeSatSim/pacsatsim-dj.sh &
+#  sudo /home/pi/CubeSatSim/pacsatsim-dj.sh &
+
+  direwolf -P+ -D1 -qd -dp -r 48000 -c /home/pi/CubeSatSim/direwolf/direwolf-pacsatsim-jp14-half.conf -t 0 &
 
 else
 
   echo "Using TXC FM transceiver"
-  sudo /home/pi/CubeSatSim/pacsatsim-df.sh &
+#  sudo /home/pi/CubeSatSim/pacsatsim-df.sh &
+
+  pwm=1
+
+  if [ "$pwm" = "1" ] ; then  
+
+    direwolf -P+ -D1 -qd -dp -r 48000 -c /home/pi/CubeSatSim/direwolf/direwolf-pacsatsim-pwm.conf -t 0 &
+
+  else
+
+    direwolf -P+ -D1 -qd -dp -r 48000 -c /home/pi/CubeSatSim/direwolf/direwolf-pacsatsim-jp14.conf -t 0 &
+
+  fi
 
 fi
 
 #  arecord -D plughw:CARD=Loopback,DEV=1 -f S16_LE -r 48000 -c 1 | csdr convert_s16_f | csdr gain_ff 14000 | csdr convert_f_samplerf 20833 | sudo rpitx -i- -m RF -f 434900 &
-##  arecord -D plughw:CARD=Loopback,DEV=1 -f S16_LE -r 48000 -c 1 | csdr convert_s16_f | csdr gain_ff 4000 | csdr convert_f_samplerf 20833 | sudo rpitx -i- -m RF -f 434900 &
+## arecord -D plughw:CARD=Loopback,DEV=1 -f S16_LE -r 48000 -c 1 | csdr convert_s16_f | csdr gain_ff 4000 | csdr convert_f_samplerf 20833 | sudo rpitx -i- -m RF -f 434900 &
 
 ##  echo "Don't close the direwolf window or the Pacsatsim will stop running."