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 Post subject: Re: Make your own functional motion tracker
PostPosted: Sat Jun 10, 2017 1:43 am 

Country: United States
I have been looking through things and it looks like we might be able to use pin 11, 13, or 15 and then an unused ground pin. I will post updates once I get a second build to test with.

And a source I looked at:
https://www.element14.com/community/doc ... berry-pi-b

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 Post subject: Re: Make your own functional motion tracker
PostPosted: Mon Jun 12, 2017 9:29 pm 

Country: United States
OK looks like I am getting a good feel for the new way to do init scripts.

do this on your pi:
"sudo nano /etc/init.d/mts"

paste this:
#!/bin/sh
### BEGIN INIT INFO
# Provides: mts
# Required-Start: $local_fs $remote_fs
# Required-Stop: $remote_fs
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: motiontrackerservice
### END INIT INFO
# Author: Ian Bremner and knoxvilles_joker
PATH=/boot/mts
DESC="Motion Tracker Service"
NAME=mts
DAEMON=/boot/mts/mts
DAEMON_ARGS=""
PIDFILE=/var/run/$NAME.pid
SCRIPTNAME=/etc/init.d/$NAME
# Exit if the package is not installed
[ -x $DAEMON ] || exit 0
# Read configuration variable file if it is present
[ -r /etc/default/$NAME ] && . /etc/default/$NAME
# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.sh
# Define LSB log_* functions.
. /lib/lsb/init-functions
#
# Function that starts the daemon/service
#
do_start()
{
# Return
# 0 if daemon has been started
# 1 if daemon was already running
# 2 if daemon could not be started
start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON --test > /dev/null \
|| return 1
start-stop-daemon --start --quiet --background --make-pidfile --pidfile $PIDFILE --exec $DAEMON -- \
$DAEMON_ARGS \
|| return 2
}
#
# Function that stops the daemon/service
#
do_stop()
{
# Return
# 0 if daemon has been stopped
# 1 if daemon was already stopped
# 2 if daemon could not be stopped
# other if a failure occurred
start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE --name $NAME
RETVAL="$?"
[ "$RETVAL" = 2 ] && return 2
rm -f $PIDFILE
return "$RETVAL"
}
case "$1" in
start)
[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC " "$NAME"
do_start
case "$?" in
0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
esac
;;
stop)
[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
do_stop
case "$?" in
0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
esac
;;
status)
status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
;;
restart|reload|force-reload)
log_daemon_msg "Restarting $DESC" "$NAME"
do_stop
case "$?" in
0|1)
do_start
case "$?" in
0) log_end_msg 0 ;;
1) log_end_msg 1 ;; # Old process is still running
*) log_end_msg 1 ;; # Failed to start
esac
;;
*)
# Failed to stop
log_end_msg 1
;;
esac
;;
*)
echo "Usage: $SCRIPTNAME {start|stop|status|restart|reload|force-reload}" >&2
exit 3
;;
esac
:




hit ctrl+x
hit enter

place all files for script here: /boot/mts/
name the motiontracker script: mts

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 Post subject: Re: Make your own functional motion tracker
PostPosted: Tue Jun 13, 2017 6:54 pm 

Country: United States
And I have been doing some digging on the audio filter portion. There are boards out there where you only have to solder a couple of wires (ideal)
https://forums.adafruit.com/viewtopic.php?f=50&t=118828



https://othermod.com/product/audio-filter-board/
https://oshpark.com/shared_projects/qUEOjE0n

Now it took some digging but these are the parts to buy:
The resistors used are:
150 Ohm
270 Ohm
capacitors are:
33n (nano) Farads
10u (micro) Farads

And where to buy them:
https://www.newark.com

I will update once I get parts in. Going the Oshpark route it appears the board can be made for 10 dollars or so.

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 Post subject: Re: Make your own functional motion tracker
PostPosted: Sun Nov 05, 2017 10:43 pm 

Country: United States
Umm, I think I stumbled upon a different sound solution for the raspberry pi:

https://learn.adafruit.com/adafruit-max ... y-pi-usage

This is all prebuilt. I can test once I get my pi laptop rig built out.

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