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Hello everybody,

I'm working on a project where I use a Zigbee module, it is a robot. But I'm having problems with programming de coordinator programm.
What must I write to the routine while I'm sending from the end device the character for example "forward"? Must it be forward in the coordinator or with bytes?

Thanks.

Dear Aqua,

Did you check other Forum answers for your problem ? In the Flowcode 4 examples *), are 9 Zigbee examples (examples/components/zigbee). Did you check if these helps to solve your problem?

If no, please be more concrete in your question.

With kind regards,

Jan Lichtenbelt

Note *) See:
http://www.matrixmultimedia.com/Flowcode3a-X.php and click om Flowcode (4) examples

Hello Jan,
thank you for your message. I think that I just understand with the examples how to use Zigbee.

So, my problem was when I send a charcter with the end_device, the coordinator receives only one value and I didn't know how Zigbee manages to make the differences between several values.
In the coordinator programm I must assign a value as example I send forward with my end_device, I'm receiving "incoming" so to make forward I must assign incoming as forward with a calcul (incoming=forward). Did I get it right or must I do soemthing else?

Regards aqua.

Hello again,

Can someone tell me if what I said above is right? thanks

regards aqua

Hello Aqua,

Yes that sounds about right. Basically you are going to make a number of commands equal to numeric values from 0 - 255.

So you could do something like this.

0 - Stop
1 - Forwards
2 - Backwards
3 - Turn Right
4 - Turn Left

I would also have a two byte protocol so you send the command byte followed by a data byte.

for example sending 1 then 200 would tell the robot to drive forwards at speed 200.

The receiver would simply poll for incoming data. Once data is received then the receiver would poll for a second byte. Once both bytes are received the command is implemented.

Thank you for your message Benj.

Well I tested my programm with Zigbee and it works. I got some problem with the speed but now it works like a charm.

Regards Aqua