Never been one to let the carrier drop

This is a perl script that can be used to pull all the files from a DA-6400 and automatically divide them into folders based on their timestamps

#!/usr/bin/perl

$|=1;

$targetbase = “~/DownloadLocation”;

$host = “tascam”;
use Net::FTP;

use Time::Local qw ( timelocal );
use Data::Dumper;
print “Creating FTP object\n”;
$ftp = Net::FTP->new($host, Debug => 0) || die “Can’t connect to tascam”;

print “Logging in\n”;
$ftp->login(“DA-6400″,”DA-6400”) || die “Can’t login ” , $ftp->message;

print “CWD\n”;

$ftp->cwd(“/ssd/DA Files”) || die “Cannot CWD: ” . $ftp->message;

print “BIN\n”;

$ftp->binary() || die “Cannot set to bin mode: ” . $ftp->message;
my $list = $ftp->ls();
my $maxtime = 0;

my $timestamps = {};
# determine newest date

foreach $file (@{$list}) {

        next if($file eq “.”);

        next if($file eq “..”);

        next if(!($file =~ /.*.wav/));
        my $unixtime = getFileTimestamp($file);

        my $ts = getTimestamp($unixtime);
        print “file: [$file] ts: $ts\n”;

        $maxtime = $unixtime if($unixtime > $maxtime);

        $timestamps->{$unixtime} = 1;

}

foreach $ts (keys %{$timestamps}) {
        $targetstub = getTargetDir($ts);

        $targetdir = $targetbase . ‘/’ . $targetstub;

        if(! -d $targetdir) {

                mkdir $targetdir;

        } else {

                next;

        }
        $targetdir .= “/ftp”;

        if(! -d $targetdir) {

                mkdir $targetdir;

        }
        chdir $targetdir;

        print “$ts – Writing to $targetdir\n”;
        foreach $file (@{$list}) {

                next if($file eq “.”);

                next if($file eq “..”);

                next if(!($file =~ /.*.wav/));
                my $unixtime = getFileTimestamp($file);

                if($unixtime == $ts) {

                        print “Fetching $file ..”;

                        $ftp->get($file);

                        print (-s $file);

                        print “\n”;

                }

        }

}
sub getTargetDir

{

        my $time = shift;

        my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime($time);

        return sprintf(“%02d%02d%04d”,$mon+1,$mday,$year+1900);

}
sub getTimestamp

{

        my $time = shift || time();
        my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime($time);

        return sprintf(“%02d/%02d/%04d-%02d:%02d:%02d”,$mon+1,$mday,$year+1900,$hour,$min,$sec);

}
sub getFileTimestamp

{

        my $file = shift;

        my ($prefix, $datetime, $take, $channel, $name) = split(/_/, $file);
        print “Datetime: [$datetime]\n” if($main::debug);
        my ($date, $time) = split(/-/, $datetime);

        print “Date: [$date]\n” if($main::debug);
        my ($yy, $MM, $dd) = $date =~ /(\d{4})(\d{2})(\d{2})/;

        my ($hh, $mm, $ss) = $time =~ /(\d{2})(\d{2})(\d{2})/;
        print “yy: [$yy] mm: $mm dd: $dd\n” if($main::debug);
        $MM -= 1;

        $yy -= 1900;
        my $unixtime = timelocal($ss, $mm, $hh, $dd, $MM, $yy);
        return $unixtime;

}

So, I found a major lack of documentation for Device::Hue, and chatGPT had some information that I would describe as whimsically wrong.

Here’s what I ended up doing to get a working perl setup controlling my hue lights:

1) Put a valid URL in /etc/environment for the key HUE_BRIDGE
2) Put a key in /etc/environment for the key HUE_KEY
3) The following code sets lights 17 and 19 to red:

my $bridge = Device::Hue->new();

$bridge->config();

foreach $light_id (17, 19) {

   my $light = $bridge->light($light_id);

   $light->set_state( { hue => 0, sat => 254 });

   $light->commit();

}

Just a heads up that hopefully google will index and save someone else from the several hours of digging I’ve just had to do. the perl module IPC::Shareable sets SIG{CHLD} to ignore any time you include it. You can set it back to the default behavior, but until you do, waitpid() is going to return -1 and $? will contain -1 for any pid-waiting you do.

I had a couple of notes on using Net::Bluetooth from a raspberry pi to talk to a Bluetooth serial port because I couldn’t get the example code given with Net::Bluetooth to work.

The following will connect to a mac address and send and receive data from it (in this particular example, a ESP32):

#!/usr/bin/perl

use Net::Bluetooth;

use Data::Dumper;

use IO::Handle;

my $obj = Net::Bluetooth->newsocket(“RFCOMM”);
$addr = ‘C4:4F:33:58:B6:FB’;

$port = 1;
if($obj->connect($addr, $port) != 0) {

     die “connect error: $!\n”;

}
my $fh = $obj->perlfh();

$fh->autoflush(1);
sleep(1);
print “sending \n”;
print $fh “V\n”;

print “receiving\n”;
$buf = readline($fh);

print “Fetchhost: $buf\n”;

I use this a lot when writing a simple perl script that I want to take args like –flag and –database=this and –comment=”This is a comment with spaces”

while($arg = shift) { 
        if(($s1,$s2) = $arg =~ /–(.*)=(.*)/) {

                $l1 = lc $s1;

                $s2 = $a if(($a) = $s2 =~ /^\”(.*)\”$/);

                $arg{$l1} = $s2;

        } elsif(($s1) = $arg =~ /–(.*)/) {

                $l1 = lc $s1;

                $arg{$l1} = 1;

        }

}

Stick it in the top of the script, and you can then just use

if($arg{‘flag’}) {

}

$comment = $arg{‘comment’};

and so on and so forth.