RoboSavvy Forum

Zig100 wireless control using Labview

2009-04-05T13:33:40+01:00

Hi guys,

Ive got a little stuck, ive got to the stage where there is a zigbee connection between my PC and the CM5 and data gets transmitted
(by the PC) and received (by the CM5) but the CM5 dosnt recognise the data.

this is the setup;

In the CM5 the BCP is connection_test.bpg and is coded as follows:
START
LABEL LOOP
IF (CM-5/RX REMOCON DATA ARRIVE) != 0 then LOAD (CM-5/AUX LED = 1)
JUMP LOOP
END

on the PC side, the labview blockdiagram is as follows:

as expected when i press the arrow keys or PgUp or PgDwn or the test button, the TxD LED on the Zig2Serial board lights up and the RxD light on the CM5 lights up.
However the AUX LED should also light up with the BCP above loaded, but it doesnt!!

Ive tried servo movements (if the AUX LED is faulty), ive tried different variations on the package format but to no avail.
I suspect its my package format, but if i send the string "FF5501FE08F7" the AUX led light dosnt come on!
I think im missing something obvious, so if anybody can spot it i would be delighted!

Statistics: Posted by donstokesy — Sun Apr 05, 2009 1:33 pm

Tx and RX between PC and CM5 running a BCP using Zig100

2008-10-25T06:06:03+01:00

Do any lights turn on when you plug in the battery?

If so, please try BioBluePC. This may be the only way to quickly test the link without making your own code.

Statistics: Posted by srobot — Sat Oct 25, 2008 6:06 am

Tx and RX between PC and CM5 running a BCP using Zig100

2008-10-25T04:58:09+01:00

Well apparently that should work. Thats the method outlined to configure the zigbee connection.

Statistics: Posted by Zwolsee — Sat Oct 25, 2008 4:58 am

Re: zig2serial problem still

2008-10-25T00:33:01+01:00

Zwolsee wrote:
I'm pressing SHIFT+1 and pressing the reset button but nothing pops up in the terminal.

That does not work for me either.

Have you tried BioBluePC? Make sure you load the correct BCP and MTN to the CM-5 and play the program on the CM-5 before connecting on BioBlue.

I don't have my setup in front of me so I can't check your pins.

Statistics: Posted by srobot — Sat Oct 25, 2008 12:33 am

zig2serial problem still

2008-10-25T00:01:59+01:00

Hey,
Ive connected my power supply to the zig2serial board. I used ground as the pin where the arrow is pointing to and +5V as the pin with J10 above it. I then connected it to my laptop with a USB2serial adaptor and opened up the robot terminal but I can't connect to it still. I'm pressing SHIFT+1 and pressing the reset button but nothing pops up in the terminal. Can anyone help?

Zwolsee

Statistics: Posted by Zwolsee — Sat Oct 25, 2008 12:01 am

Re: Zig2serial issue

2008-10-24T04:26:39+01:00

Zwolsee wrote:
From what ive read this is because I need an external 5V power supply right?

That is correct.

Zwolsee wrote:
If so what pins does this power need to be connected to?

You have two options:

1) Buy a USB2Dyamixel and get the power through USB
2) Solder a plug to J10, and power with a battery.

Option 1 is much cleaner, although this will cost you more money (about $60 USD, or 40 GBP).

Zwolsee wrote:
Also once I have established a wireless link could anyone offer some example code or some explanation for the steps needed to achieve sending values from my PC to the robot via a zigbee link. That is, any variables I need to enable, or protocol needed?

You can use BioBluePC:

http://www.bipedrobots.co.uk/index.aspx?id=294

If you are looking to make your own control program look around on the forum, there are a few posts on how to do it.

--srobot

Statistics: Posted by srobot — Fri Oct 24, 2008 4:26 am

Zig2serial issue

2008-10-24T02:31:16+01:00

Hey guys I am new to this forum and the bioloid but ive just bought a zigbee set with a zig2serial and am experiencing a few problems. I currently have my robot reading values from my com port in my robot C program using the RxD8(). This works fine via a serial link but now I want to switch to wireless transmission. Ive noticed that my zig2serial board doesn't power up and I can't connect to it in the robot terminal. From what ive read this is because I need an external 5V power supply right? If so what pins does this power need to be connected to?
Also once I have established a wireless link could anyone offer some example code or some explanation for the steps needed to achieve sending values from my PC to the robot via a zigbee link. That is, any variables I need to enable, or protocol needed?

Thanks guys any help would be much appreciated.

Statistics: Posted by Zwolsee — Fri Oct 24, 2008 2:31 am

Tx and RX between PC and CM5 running a BCP using Zig100

2007-06-26T10:28:23+01:00

Thanks again.Dewey, Since i just bought it a week ago, so there are still some setting that I missed.
enjoy your vacation roycepipkins, looking forward to hearing your C project.
Thank you...

cheers

ryann2k1

Statistics: Posted by ryann2k1 — Tue Jun 26, 2007 10:28 am

Tx and RX between PC and CM5 running a BCP using Zig100

2007-06-26T08:10:09+01:00

The Zig2Serial board has 3 LEDs. Two are used to show the Tx and Rx of the Serial line connected to the PC (which in my case is via a Serial to USB converter). The third LED is the staus of the Zig100.

The circuit diagram suggested in the Zig100 Robotis Manual to interface the Zig100 is in effect the circuit of the Robotis Zig2Serial Board. I presume they published this circuit because at the time the Zig2Seial Board was not available as a stock item from them. Beware however there are some differences, in particular the 'feed' of +5 volt power via pin9 as mentioned in my original post.

Dewey

Statistics: Posted by Dewey — Tue Jun 26, 2007 8:10 am

Tx and RX between PC and CM5 running a BCP using Zig100

2007-06-26T07:50:47+01:00

I made an error in my earlier post, in case anyone ever needs it. The resistor should be connected to ground and the LED leads should be reversed from my first description. Pin 3 goes from open circuit to short-to-Vcc. I was looking at the wrong LED schematic when I made my post.

Anyway, I've just made the leap to C. I haven't gotten very far yet an I'm about to go on vacation for two weeks.

StuartL should be posting his async dynamixel library soon. I look forward to that as I think it'll be a good bit nicer than the fairly raw thing they give you in the examples.

Here is a post that describes the structure of the motion data in the MCUs flash.
http://forums.tribotix.info/forum1/76.html
Getting such motion data to play back in C just as it would in the motion editor should be a short to medium leap from that information. (Maybe StuartL will make us a nice library for that too. )

Statistics: Posted by roycepipkins — Tue Jun 26, 2007 7:50 am

Tx and RX between PC and CM5 running a BCP using Zig100

2007-06-26T06:04:13+01:00

Yep, I agree with you roycepipkins,
I am referring to this site
http://www.crustcrawler.com/electronics ... 00(English).pdf
page 10. Btw, are you using C++ im programming your robot? how do you manage to control your robot motions? are there any speed latency?
thank you for sharing.

cheers,

ryann2k1

Statistics: Posted by ryann2k1 — Tue Jun 26, 2007 6:04 am

Tx and RX between PC and CM5 running a BCP using Zig100

2007-06-26T05:54:23+01:00

I don't have a zig2serial board, but I'd suspect that the LED on that board is indeed setup to be wired to pin 3 when you plug in the zig-100 module.

Statistics: Posted by roycepipkins — Tue Jun 26, 2007 5:54 am

Tx and RX between PC and CM5 running a BCP using Zig100

2007-06-26T05:43:30+01:00

Hi roycepipkins,
there is a status led on the zig2serial board,is that similar if I use ur configuration or they are different?
Thanks again for sharing....

cheers,

ryann2k1

Statistics: Posted by ryann2k1 — Tue Jun 26, 2007 5:43 am

Tx and RX between PC and CM5 running a BCP using Zig100

2007-06-26T05:18:15+01:00

Pin 3 of the Zig-100 will short itself to ground internally if you've made a connection. It will cycle between open circuit and short-to-ground if it cannot make a connection/ is still trying to make a connection.

If you hook an LED's short lead to pin3, hook the LED's long lead to one lead of a 220 Ohm resistor and finally hook the other lead of the 220 Ohm resistor to your 3.3V power supply, then you will have a light that blinks when there is no connection and is on steady when there is a good connection to the remote Zig-100 module.

If you cut the LED leads down to size and can't remember which one was the short one, then look carefully for a flat portion on the circular base of the LED. That was the short lead before you cut it.

Statistics: Posted by roycepipkins — Tue Jun 26, 2007 5:18 am

Tx and RX between PC and CM5 running a BCP using Zig100

2007-06-26T05:07:06+01:00

hi Dewey,
Thank you for your answer. at this stage i just to make sure whether my pc (with zigbee100/zig2serial) can establish a wireless com with my cm-5(zib100). Finally with the help of a terminal emulator I could solve the problem . now it is time to do more programming for my project.
so what kind of project are you working with your bioloid?

thanks again....

cheers

ryann2k1

Statistics: Posted by ryann2k1 — Tue Jun 26, 2007 5:07 am