diff --git a/fhem/CHANGED b/fhem/CHANGED
index 1b51aacd5..be1c634dc 100644
--- a/fhem/CHANGED
+++ b/fhem/CHANGED
@@ -1,6 +1,5 @@
 # Add changes at the top of the list. Keep it in ASCII, and 80-char wide.
 # Do not insert empty lines here, update check depends on it.
-  - feature:  10_MYSENSORS_DEVICE: heartbeat, alive check, sleep and RSSI
   - change:  74_AMADtasker: AMAD Taskerproject change to new battery states
   - feature: 49_SSCamSTRM: new attr hideDisplayName regarding to Forum #88667
   - bugfix:  49_SSCam: global vars
diff --git a/fhem/FHEM/10_MYSENSORS_DEVICE.pm b/fhem/FHEM/10_MYSENSORS_DEVICE.pm
index 1d536350f..8bcc6a7a5 100755
--- a/fhem/FHEM/10_MYSENSORS_DEVICE.pm
+++ b/fhem/FHEM/10_MYSENSORS_DEVICE.pm
@@ -20,7 +20,7 @@
 #     You should have received a copy of the GNU General Public License
 #     along with fhem.  If not, see <http://www.gnu.org/licenses/>.
 #
-# $Id$id$
+# $Id$
 #
 ##############################################
 
@@ -28,10 +28,7 @@ use strict;
 use warnings;
 
 my %gets = (
-	# "version" => 1,
-	"heartbeat" => 1, #request node to send hearbeat, MySensorsCore.cpp L 429
-	# "presentation" => 1, #request node to redo presentation, MySensorsCore.cpp L 426
-	"RSSI" => 1, #request RSSI values (available only for recent versions, not for all transceiver types
+  "version"   => "",
 );
 
 sub MYSENSORS_DEVICE_Initialize($) {
@@ -42,7 +39,6 @@ sub MYSENSORS_DEVICE_Initialize($) {
   $hash->{DefFn}    = "MYSENSORS::DEVICE::Define";
   $hash->{UndefFn}  = "MYSENSORS::DEVICE::UnDefine";
   $hash->{SetFn}    = "MYSENSORS::DEVICE::Set";
-  $hash->{GetFn}    = "MYSENSORS::DEVICE::Get";
   $hash->{AttrFn}   = "MYSENSORS::DEVICE::Attr";
   
   $hash->{AttrList} =
@@ -274,35 +270,6 @@ sub Set($@) {
   }
 }
 
-sub Get($@) {
-	my ($hash, @a) = @_;
-	my $type = $hash->{TYPE};
-	return "\"get $type\" needs at least one parameter" if(@a < 2);
-	if(!defined($gets{$a[1]})) {
-		my @cList = map { $_ =~ m/^(file|raw)$/ ? $_ : "$_:noArg" } sort keys %gets;
-		return "Unknown argument $a[1], choose one of " . join(" ", @cList);
-	}
-	my $command = $a[1];
-	COMMAND_HANDLER: {
-		$command eq "version" and do {
-		sendMessage($hash->{IODev}, radioId => $hash->{radioId}, cmd => C_INTERNAL, ack => 0, subType => I_VERSION);
-		last;
-		};
-		$command eq "heartbeat" and do {
-			sendMessage($hash->{IODev}, radioId => $hash->{radioId}, cmd => C_INTERNAL, ack => 0, subType => I_HEARTBEAT_REQUEST);
-			last;
-		};
-		$command eq "presentation" and do {
-			sendMessage($hash->{IODev}, radioId => $hash->{radioId}, cmd => C_INTERNAL, ack => 0, subType => I_PRESENTATION);
-			last;
-		};
-		$command eq "RSSI" and do {
-			sendMessage($hash->{IODev}, radioId => $hash->{radioId}, cmd => C_INTERNAL, ack => 0, subType => I_SIGNAL_REPORT_REQUEST);
-			last;
-		};
-	}
-}
-
 sub Attr($$$$) {
   my ($command,$name,$attribute,$value) = @_;
 
@@ -513,7 +480,7 @@ sub onSetMessage($$) {
 			readingsSingleUpdate($hash, $reading, $value, 1);
 		};
 		Log3 ($hash->{NAME}, 4, "MYSENSORS_DEVICE $hash->{NAME}: ignoring C_SET-message ".GP_Catch($@)) if $@;
-		refreshInternalMySTimer($hash,"Alive") if $hash->{timeoutAlive}; #deactivate in case of wanted reduction of alive to internal (heartbeat/battery/smartsleep) messages
+		refreshInternalMySTimer($hash,"Alive") if $hash->{timeoutAlive};
 	} else {
 		Log3 ($hash->{NAME}, 5, "MYSENSORS_DEVICE $hash->{NAME}: ignoring C_SET-message without payload");
 	};
@@ -535,199 +502,107 @@ sub onRequestMessage($$) {
 }
 
 sub onInternalMessage($$) {
-	my ($hash,$msg) = @_;
-	my $name = $hash->{NAME};
-	my $type = $msg->{subType};
-	my $typeStr = internalMessageTypeToStr($type);
-	INTERNALMESSAGE: {
-		$type == I_BATTERY_LEVEL and do {
-			# readingsSingleUpdate($hash, "batterylevel", $msg->{payload}, 1);
-			# Log3 ($name, 3, "MYSENSORS_DEVICE $name: batterylevel is deprecated and will be removed soon, use batteryPercent instead (Forum #87575)");
-			readingsSingleUpdate($hash, "batteryPercent", $msg->{payload}, 1);
-			refreshInternalMySTimer($hash,"Alive") if $hash->{timeoutAlive};
-			Log3 ($name, 4, "MYSENSORS_DEVICE $name: batteryPercent $msg->{payload}");
-			last;
-		};
-		$type == I_TIME and do {
-			if ($msg->{ack}) {
-				Log3 ($name, 4, "MYSENSORS_DEVICE $name: response to time-request acknowledged");
-			} else {
-				sendClientMessage($hash,cmd => C_INTERNAL, childId => 255, subType => I_TIME, payload => time);
-				Log3 ($name, 4, "MYSENSORS_DEVICE $name: update of time requested");
-			}
-			last;
-		};
-		$type == I_VERSION and do {
-			$hash->{$typeStr} = $msg->{payload};
-			last;
-		};
-		$type == I_ID_REQUEST and do {
-			$hash->{$typeStr} = $msg->{payload};
-			last;
-		};
-		$type == I_ID_RESPONSE and do {
-			$hash->{$typeStr} = $msg->{payload};
-			last;
-		};
-		$type == I_INCLUSION_MODE and do {
-			$hash->{$typeStr} = $msg->{payload};
-			last;
-		};
-		$type == I_CONFIG and do {
-			if ($msg->{ack}) {
-				Log3 ($name, 4, "MYSENSORS_DEVICE $name: response to config-request acknowledged");
-			} else {
-				readingsSingleUpdate($hash, "parentId", $msg->{payload}, 1);
-				sendClientMessage($hash,cmd => C_INTERNAL, childId => 255, subType => I_CONFIG, payload => AttrVal($name,"config","M"));
-				Log3 ($name, 4, "MYSENSORS_DEVICE $name: respond to config-request, node parentId = " . $msg->{payload});
-			}
-			last;
-		};
-		$type == I_FIND_PARENT and do {
-			$hash->{$typeStr} = $msg->{payload};
-			last;
-		};
-		$type == I_FIND_PARENT_RESPONSE and do {
-			$hash->{$typeStr} = $msg->{payload};
-			last;
-		};
-		$type == I_LOG_MESSAGE and do {
-			$hash->{$typeStr} = $msg->{payload};
-			last;
-		};
-		$type == I_CHILDREN and do {
-			readingsSingleUpdate($hash, "state", "routingtable cleared", 1);
-			Log3 ($name, 3, "MYSENSORS_DEVICE $name: routingtable cleared");
-			last;
-		};
-		$type == I_SKETCH_NAME and do {
-			#$hash->{$typeStr} = $msg->{payload};
-			readingsSingleUpdate($hash, "SKETCH_NAME", $msg->{payload}, 1);
-			last;
-		};
-		$type == I_SKETCH_VERSION and do {
-			#$hash->{$typeStr} = $msg->{payload};
-			readingsSingleUpdate($hash, "SKETCH_VERSION", $msg->{payload}, 1);
-			last;
-		};
-		$type == I_REBOOT and do {
-			#$hash->{$typeStr} = $msg->{payload};
-			last;
-		};
-		$type == I_GATEWAY_READY and do {
-			$hash->{$typeStr} = $msg->{payload};
-			last;
-		};
-		$type == I_REQUEST_SIGNING and do {
-			$hash->{$typeStr} = $msg->{payload};
-			last;
-		};
-		$type == I_GET_NONCE and do {
-			$hash->{$typeStr} = $msg->{payload};
-			last;
-		};
-		$type == I_GET_NONCE_RESPONSE and do {
-			$hash->{$typeStr} = $msg->{payload};
-			last;
-		};
-		$type == I_HEARTBEAT_REQUEST and do {
-			#$hash->{$typeStr} = $msg->{payload};
-			eval {
-				sendMessage($hash->{IODev},radioId => 0, childId => 0, cmd => C_INTERNAL, ack => 0, subType => I_HEARTBEAT_RESPONSE);
-			};
-			refreshInternalMySTimer($hash,"Alive") if $hash->{timeoutAlive};
-			last;
-		};
-		$type == I_PRESENTATION and do {
-			#$hash->{$typeStr} = $msg->{payload};
-			last;
-		};
-		$type == I_DISCOVER_REQUEST and do {
-			#$hash->{$typeStr} = $msg->{payload};
-			last;
-		};
-		$type == I_DISCOVER_RESPONSE and do {
-			#$hash->{$typeStr} = $msg->{payload};
-			last;
-		};
-		$type == I_HEARTBEAT_RESPONSE and do {
-			readingsSingleUpdate($hash, "heartbeat", "last", 0);
-			refreshInternalMySTimer($hash,"Alive") if $hash->{timeoutAlive};
-			$hash->{$typeStr} = $msg->{payload};
-			last;
-		};
-		$type == I_LOCKED and do {
-			$hash->{$typeStr} = $msg->{payload};
-			last;
-		};
-		$type == I_REGISTRATION_REQUEST and do {
-			$hash->{$typeStr} = $msg->{payload};
-			last;
-		};
-		$type == I_REGISTRATION_RESPONSE and do {
-			$hash->{$typeStr} = $msg->{payload};
-			last;
-		};
-		$type == I_DEBUG and do {
-			$hash->{$typeStr} = $msg->{payload};
-			last;
-		}; 
-		$type == I_SIGNAL_REPORT_REVERSE and do {
-			#$hash->{$typeStr} = $msg->{payload};
-			readingsSingleUpdate($hash, "rssi_DEVICE", $msg->{payload}, 1) if ($msg->{payload} > -256 );
-			last;
-		}; 
-		$type == I_SIGNAL_REPORT_RESPONSE and do {
-			#$hash->{$typeStr} = $msg->{payload};
-			readingsSingleUpdate($hash, "rssi_at_IODev", $msg->{payload}, 1) if ($msg->{payload} > -256 );
-			last;
-		}; 
-		$type == I_PRE_SLEEP_NOTIFICATION and do {
-			#$hash->{$typeStr} = $msg->{payload};
-			readingsSingleUpdate($hash, "nowSleeping", "1", 0);
-			refreshInternalMySTimer($hash,"Alive") if $hash->{timeoutAlive};
-			last;
-		}; 
-		$type == I_POST_SLEEP_NOTIFICATION and do {
-			#$hash->{$typeStr} = $msg->{payload};
-			readingsSingleUpdate($hash, "nowSleeping", "0", 0);
-			refreshInternalMySTimer($hash,"Alive") if $hash->{timeoutAlive};
-			#here we can send out retained and outstanding messages
-			$hash->{nexttry} = -1;
-			MYSENSORS::Timer($hash);
-			my $retainedMsg;
-			while (defined($retainedMsg = shift @{$hash->{retainedMessagesForRadioId}})) {
-				sendClientMessage($hash,$retainedMsg);
-			};
-			last;
-		};
-	}
+  my ($hash,$msg) = @_;
+  my $name = $hash->{NAME};
+  my $type = $msg->{subType};
+  my $typeStr = internalMessageTypeToStr($type);
+  INTERNALMESSAGE: {
+    $type == I_BATTERY_LEVEL and do {
+      readingsSingleUpdate($hash, "batterylevel", $msg->{payload}, 1);
+      Log3 ($name, 4, "MYSENSORS_DEVICE $name: batterylevel $msg->{payload}");
+      last;
+    };
+    $type == I_TIME and do {
+      if ($msg->{ack}) {
+        Log3 ($name, 4, "MYSENSORS_DEVICE $name: response to time-request acknowledged");
+      } else {
+        sendClientMessage($hash,cmd => C_INTERNAL, childId => 255, subType => I_TIME, payload => time);
+        Log3 ($name, 4, "MYSENSORS_DEVICE $name: update of time requested");
+      }
+      last;
+    };
+    $type == I_VERSION and do {
+      $hash->{$typeStr} = $msg->{payload};
+      last;
+    };
+    $type == I_ID_REQUEST and do {
+      $hash->{$typeStr} = $msg->{payload};
+      last;
+    };
+    $type == I_ID_RESPONSE and do {
+      $hash->{$typeStr} = $msg->{payload};
+      last;
+    };
+    $type == I_INCLUSION_MODE and do {
+      $hash->{$typeStr} = $msg->{payload};
+      last;
+    };
+    $type == I_CONFIG and do {
+      if ($msg->{ack}) {
+        Log3 ($name, 4, "MYSENSORS_DEVICE $name: response to config-request acknowledged");
+      } else {
+        readingsSingleUpdate($hash, "parentId", $msg->{payload}, 1);
+        sendClientMessage($hash,cmd => C_INTERNAL, childId => 255, subType => I_CONFIG, payload => AttrVal($name,"config","M"));
+        Log3 ($name, 4, "MYSENSORS_DEVICE $name: respond to config-request, node parentId = " . $msg->{payload});
+      }
+      last;
+    };
+    $type == I_FIND_PARENT and do {
+      $hash->{$typeStr} = $msg->{payload};
+      last;
+    };
+    $type == I_FIND_PARENT_RESPONSE and do {
+      $hash->{$typeStr} = $msg->{payload};
+      last;
+    };
+    $type == I_LOG_MESSAGE and do {
+      $hash->{$typeStr} = $msg->{payload};
+      last;
+    };
+    $type == I_CHILDREN and do {
+      readingsSingleUpdate($hash, "state", "routingtable cleared", 1);
+      Log3 ($name, 3, "MYSENSORS_DEVICE $name: routingtable cleared");
+      last;
+    };
+    $type == I_SKETCH_NAME and do {
+      $hash->{$typeStr} = $msg->{payload};
+      readingsSingleUpdate($hash, "SKETCH_NAME", $msg->{payload}, 1);
+      last;
+    };
+    $type == I_SKETCH_VERSION and do {
+      $hash->{$typeStr} = $msg->{payload};
+      readingsSingleUpdate($hash, "SKETCH_VERSION", $msg->{payload}, 1);
+      last;
+    };
+    $type == I_REBOOT and do {
+      $hash->{$typeStr} = $msg->{payload};
+      last;
+    };
+    $type == I_GATEWAY_READY and do {
+      $hash->{$typeStr} = $msg->{payload};
+      last;
+    };
+    $type == I_REQUEST_SIGNING and do {
+      $hash->{$typeStr} = $msg->{payload};
+      last;
+    };
+    $type == I_GET_NONCE and do {
+      $hash->{$typeStr} = $msg->{payload};
+      last;
+    };
+    $type == I_GET_NONCE_RESPONSE and do {
+      $hash->{$typeStr} = $msg->{payload};
+      last;
+    };
+  }
 }
 
 sub sendClientMessage($%) {
 	my ($hash,%msg) = @_;
 	$msg{radioId} = $hash->{radioId};
 	$msg{ack} = $hash->{ack} unless defined $msg{ack};
-    unless ($hash->{nowSleeping}) {
-      sendMessage($hash->{IODev},%msg);
-      refreshInternalMySTimer($hash,"Ack") if (($hash->{ack} or $hash->{IODev}->{ack}) and $hash->{timeoutAck}); 
-    } else {
-      #write to queue if node is asleep
-      my $retainedMessagesForRadioId = $hash->{retainedMessagesForRadioId}->{$msg{radioId}};
-      unless (defined $retainedMessagesForRadioId) {
-          $retainedMessagesForRadioId = {
-            messages => [],
-          };
-          $hash->{retainedMessagesForRadioId}->{$msg{radioId}} = $retainedMessagesForRadioId;
-      }
-      my $messages = $retainedMessagesForRadioId->{messages};
-      @$messages = grep {
-          $_->{childId} != $msg{childId}
-      or $_->{cmd}     != $msg{cmd}
-          or $_->{subType} != $msg{subType}
-      } @$messages;
-      push @$messages,\%msg;
-    }
+	sendMessage($hash->{IODev},%msg);
+	refreshInternalMySTimer($hash,"Ack") if (($hash->{ack} or $hash->{IODev}->{ack}) and $hash->{timeoutAck}) ; 
 }
 
 sub rawToMappedReading($$$$) {
@@ -865,4 +740,4 @@ sub timeoutMySTimer($) {
 </ul>
 
 =end html
-=cut
\ No newline at end of file
+=cut