movedown

#!/bin/bash
# deplacer vers le bas
# usage: movedown DD S ;  DD=degrees S=speed 1=high 2=med 3=low
#   
#    Copyright (C) 2010  Martin Aube
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation, either version 3 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
#    Contact: martin.aube@cegepsherbrooke.qc.ca
#
if [ "$1" = "" ]
then echo "usage: movedown DD MM SP ;  DD=degrees MM=minute SP=speed 1=high 2=med 3=low"
     exit 0
fi
if [ "$2" = "" ]
then echo "usage: movedown DD MM SP ;  DD=degrees MM=minute SP=speed 1=high 2=med 3=low"
     exit 0
fi
if [ "$3" = "" ]
then echo "usage: movedown DD MM SP ;  DD=degrees MM=minute SP=speed 1=high 2=med 3=low"
     exit 0
fi
readmount "EL" 0
read D M S < mount.tmp 
let min="$1"*60+"$2"
rm -f mount.tmp
if [ "$3" -eq 1 ] 
then echo "#:RS#" > /dev/ttyS0
let timi=11*min/6000
let timd=11*min/600-timi*10
let timc=11*min/60-timd*10-timi*100
let timm=11*10*min/60-timc*10-timd*100-timi*1000
let timn=0
elif [ "$3" -eq 2 ]
then echo "#:RM#" > /dev/ttyS0
let timi=16*min/600
let timd=16*min/60-timi*10
let timc=16*min/6-timd*10-timi*100
let timm=16*10*min/6-timc*10-timd*100-timi*1000
let timn=0
elif [ "$3" -eq 3 ]
then echo "#:RC#" > /dev/ttyS0
let timi=3*min/60
let timd=3*min/6-timi*10
let timc=3*10*min/6-timd*10-timi*100
let timm=3*100*min/6-timc*10-timd*100-timi*1000
let timn=3*1000*min/6-timm*10-timc*100-timd*1000-timi*10000
fi
sleep 0.2
echo "#:Ms#" > /dev/ttyS0
sleep $timi"."$timd$timc$timm$timn
echo "#:Qs#" > /dev/ttyS0
readmount "EL" 0
read D M S < mount.tmp 
exit 1