diff --git a/scenes/main.tscn b/scenes/main.tscn
index 5fcc143..9803975 100644
--- a/scenes/main.tscn
+++ b/scenes/main.tscn
@@ -4,7 +4,7 @@
 
 [node name="Node2D" type="Node2D"]
 script = ExtResource("1_hsiae")
-master = 240
-red = 215
-green = 85
-blue = 135
+master = 255
+red = 130
+ip_destination = "192.168.21.27"
+update_frequency = 40
diff --git a/scripts/artnet.gd b/scripts/artnet.gd
index f0d2b26..e52c074 100644
--- a/scripts/artnet.gd
+++ b/scripts/artnet.gd
@@ -4,33 +4,58 @@ extends Node2D
 var socket = PacketPeerUDP.new()
 var data = []
 
-@export_range(0,255,1) var master = 200
+@export_range(0,255,1) var master = 0
 @export_range(0,255,1) var red = 0
-@export_range(0,255,1) var green = 200
+@export_range(0,255,1) var green = 0
 @export_range(0,255,1) var blue = 0
 
-# Called when the node enters the scene tree for the first time.
+@export var ip_destination = "127.0.0.1"
+@export_range(1,100,1) var update_frequency=10
+
+var last_update_delta=0
+
 func _ready() -> void:
-	# Server
-	socket.set_dest_address("192.168.21.27", 6454)
+	socket.set_dest_address(ip_destination, 6454)
+	print("connecting to:"+str(ip_destination))
 	data.resize(512)
 	data.fill(0)
 
-var last_update_delta=0
-# Called every frame. 'delta' is the elapsed time since the previous frame.
+
 func _process(delta: float) -> void:
 	last_update_delta+=delta
 	
-	if last_update_delta>1.0/40.0:
+	if last_update_delta>1.0/update_frequency:
 		last_update_delta=0
-		print("Update")
 		
-		data[0]=master #master dimmer
-		data[2]=red #red
-		data[3]=green #green
-		data[4]=blue #blue
+		setDMXChannel(1,master) #master dimmer
+		setDMXChannel(3,red) #red
+		setDMXChannel(4,green) #green
+		setDMXChannel(5,blue) #blue
 		sendDMX(data)
 		
+func setDMXChannel(ch,val,twobytes:bool=false):
+	if (ch-1>512):
+		print("DMX Error: Channel out of bounds")
+		return 0
+		
+	if (!twobytes):
+		data[ch-1]=val
+	else:
+		data[ch-1]=val/256
+		data[ch-1+1]=val%256
+		
+	return 1
+		
+func setDMXChannel_Array(chstart,arr:Array):
+	var ch=chstart
+	for a in arr:
+		if (ch-1<=512):
+			data[ch-1]=a
+			ch+=1
+		else:
+			print("DMX Error: Channel out of bounds")
+			return 0
+	return 1
 		
 func sendDMX(data:Array):
 	var buffer=PackedByteArray([65, 114, 116, 45, 78, 101, 116, 0, 0, 80, 0, 14]) # Art-Net\0 / OpCodeLo / OpCodeHi / ProtoHi /ProtoLow