diff --git a/FHEM/00_CUL.pm b/FHEM/00_CUL.pm
index 9bbcfe1a8..cc590b39e 100755
--- a/FHEM/00_CUL.pm
+++ b/FHEM/00_CUL.pm
@@ -87,7 +87,7 @@ CUL_Define($$)
   my $name = $a[0];
   my $dev = $a[2];
   return "FHTID must be H1H2, with H1 and H2 hex and both smaller than 64"
-                if($a[3] !~ m/^[0-6]\d[0-6]\d$/);
+                if(uc($a[3]) !~ m/^[0-6][0-9A-F][0-6][0-9A-F]$/);
   $hash->{FHTID} = uc($a[3]);
   $hash->{MOBILE} = 1 if($a[4] && $a[4] eq "mobile");
   $hash->{STATE} = "defined";
@@ -555,6 +555,8 @@ CUL_SimpleWrite($$)
   my ($hash, $msg) = @_;
   return if(!$hash || !defined($hash->{PortObj}));
   $hash->{PortObj}->write($msg . "\n");
+  #Log 1, "CUL_SimpleWrite $msg";
+  select(undef, undef, undef, 0.01);
 }
 
 #####################################
@@ -581,7 +583,7 @@ CUL_Write($$$)
     while(length($msg) > $moff) {
       my $snd = substr($msg,6,4) .
                 substr($msg,$moff,2) . "79" . substr($msg,$moff+2,2);
-      $hash->{PortObj}->write("T$snd\n");
+      CUL_SimpleWrite($hash, "T$snd");
       $moff += 4;
     }
     return;
diff --git a/FHEM/11_FHT.pm b/FHEM/11_FHT.pm
index f6c1aadd8..953edd79e 100755
--- a/FHEM/11_FHT.pm
+++ b/FHEM/11_FHT.pm
@@ -267,6 +267,7 @@ FHT_SetState($$$$)
 {
   my ($hash, $tim, $vt, $val) = @_;
 
+  return "Ignoring FHZ state" if($vt =~ m/^FHZ:/);
   $vt =~ s/^FHZ://;
   return "Undefined type $vt" if(!defined($c2b{$vt}));
   return undef;
diff --git a/FHEM/91_sequence.pm b/FHEM/91_sequence.pm
new file mode 100755
index 000000000..aac60a85d
--- /dev/null
+++ b/FHEM/91_sequence.pm
@@ -0,0 +1,117 @@
+##############################################
+package main;
+
+use strict;
+use warnings;
+use Time::HiRes qw(gettimeofday);
+
+#####################################
+sub
+sequence_Initialize($)
+{
+  my ($hash) = @_;
+
+  $hash->{DefFn} = "sequence_Define";
+  $hash->{UndefFn} = "sequence_Undef";
+  $hash->{NotifyFn} = "sequence_Notify";
+  $hash->{AttrList} = "disable:0,1 loglevel:0,1,2,3,4,5,6";
+}
+
+
+#####################################
+# define sq1 sequence reg1 [timeout reg2]
+sub
+sequence_Define($$)
+{
+  my ($hash, $def) = @_;
+  my @def = split("[ \t]+", $def);
+
+  my $name = shift(@def);
+  my $type = shift(@def);
+  
+  return "Usage: define <name> sequence <re1> <timeout1> <re2> ".
+                                            "[<timeout2> <re3> ...]"
+    if(int(@def) % 2 == 0 || int(@def) < 3);
+
+  # "Syntax" checking
+  for(my $i = 0; $i < int(@def); $i += 2) {
+    my $re = $def[$i];
+    my $to = $def[$i+1];
+    eval { "Hallo" =~ m/^$re$/ };
+    return "Bad regexp 1: $@" if($@);
+    return "Bad timeout spec $to"
+        if(defined($to) && $to !~ m/^\d*.?\d$/);
+  }
+
+  $hash->{RE} = $def[0];
+  $hash->{IDX} = 0;
+  $hash->{MAX} = int(@def);
+  $hash->{STATE} = "initialized";
+  return undef;
+}
+
+#####################################
+sub
+sequence_Notify($$)
+{
+  my ($hash, $dev) = @_;
+
+  my $ln = $hash->{NAME};
+  return "" if($attr{$ln} && $attr{$ln}{disable});
+
+  my $n = $dev->{NAME};
+  my $re = $hash->{RE};
+  my $max = int(@{$dev->{CHANGED}});
+
+  for (my $i = 0; $i < $max; $i++) {
+    my $s = $dev->{CHANGED}[$i];
+    $s = "" if(!defined($s));
+    next if($n !~ m/^$re$/ && "$n:$s" !~ m/^$re$/);
+
+    RemoveInternalTimer($ln);
+    my $idx = $hash->{IDX} + 2;
+    Log GetLogLevel($ln,5), "sequence $ln matched $idx";
+    my @d = split("[ \t]+", $hash->{DEF});
+
+
+    if($idx > $hash->{MAX}) {   # Last element reached
+
+      Log GetLogLevel($ln,5), "sequence $ln triggered";
+      DoTrigger($ln, "trigger");
+      $idx  = 0;
+
+    } else {
+
+      $hash->{RE} = $d[$idx];
+      my $nt = gettimeofday() + $d[$idx-1];
+      InternalTimer($nt, "sequence_Trigger", $ln, 0);
+
+    }
+
+    $hash->{IDX} = $idx;
+    $hash->{RE} = $d[$idx];
+    last;
+  }
+  return "";
+}
+
+sub
+sequence_Trigger($)
+{
+  my ($ln) = @_;
+  my $hash = $defs{$ln};
+  my @d = split("[ \t]+", $hash->{DEF});
+  $hash->{RE} = $d[0];
+  $hash->{IDX} = 0;
+  Log GetLogLevel($ln,5), "sequence $ln timeout";
+}
+
+sub
+sequence_Undef($$)
+{
+  my ($hash, $name) = @_;
+  RemoveInternalTimer($name);
+  return undef;
+}
+
+1;