Questions about ethernetUDP programming

Using Arduino Programming Questions
#1

Hello guys

I'm working on a project with an arduino mega and ethernet shield.
I have an matrix of 96 buttons and there are 12 vertical lines and 8 horizontal lines.
I want to send an UDP packet over ethernet when 2 digital pins(lines) are together high.
I'm working with the different lines and thats the way i want to send the 96 different UDPpackets for each button.
What is the best way to program this and how i have to program this.
It's the first time i'm doing such thing with the arduino.

Thanks,

Leon

#2

96 different UDPpackets

Are the packets all completely different or are they mostly the same except for one or two bytes of data?

#3

Thanks for your reaction on my post!
I hope you can help me with my guestion.
Its data with simple commands to control a device.

The link below is a small document with the remote protocol and the commands
http://www.chamsys.be/download/manuals/magicqremoteethernet.pdf?dl=44

Greetz

Lustige Leon

#4

They are mostly the same.
It are just a few numbers are different for each button
But the command is the same

Thanks

Lustige Leon

#5

In general one would use an array of 96 elements. You can have a structure that contains multiple associated data values:

struct buttonData {int buttonType, byte buttonCode} buttonArray[96];

You can get to each field of the structure:

int type = buttonArray[index].buttonType;
byte code = buttonArray[index].buttonCode;
#6

I still don’t understand how you actually program more than one UDP packet. Could you please explain to me step by step how to do this?

Basically, I want to achieve this:
Step 1: When digital pins 22 and 40 are high, then the Arduino should send a UDP packet which contains G8-1.
Step 2: When digital pins 23 and 42 are high, then the Arduin should send a UDP packet G8-2

These two steps are the steps that I should repeat 96 times but with different UDP packets.
Could you tell me how to program this?

Many thanks in advance!

Leon

#7