RE: [WheelCommander] Wheel Commander problems

["Charley Webb" <charleyshf@xxxxxxxxxxx>]

WOW!! Thank you for getting back to me.

I am using a Basic Stamp, with the same connections as the ones in your
example.
Pin 0 - RX from WC'S TX pin J10.3
Pin 1 - Xmit to WC'S RX pin J10.1
The ground pin from the WC(J10.4) is connected to the basic stamps
ground.(Wether I have this connected or not I can see when I send a command
to the WC)

When I send the 'K' command to the WC, it goes through this process of
moving the wheels(servos) and it runs for about a minute and then stops, at
that point the green led on the WC comes back on.

So I know it's receiving commands from my basic stamp, I have also used the
serin command without timeouts to see if ANYTHING is coming from the WC,
which of course the basic stamp will stay there forever until something is
received.

I have the baud rate programmed on the WC at 9600, same as the basic stamp



I also have a Basic Atom Pro 28 pin on a botboard that I am testing now,
there are some differences in the code, however I get the same results.

I send the baud rate command before I send the calibrate command, and I have
also done the reverse.

Everything else I have tried and verified connections. 

IS there anything else I can try?

Thank you


-----Original Message-----
From: wheelcommander-bounces@xxxxxxxxxxxxxxxxx
[mailto:wheelcommander-bounces@xxxxxxxxxxxxxxxxx] On Behalf Of Pete Skeggs
Sent: Sunday, November 19, 2006 3:18 PM
To: WC-132 WheelCommander Controller Support List
Subject: Re: [WheelCommander] Wheel Commander problems

Charley Webb wrote:
> I am using a Basic Stamp module hooked to the Wheel Commander for RX and
TX
> data, the problem is that I can send data to the WC, I can also send the
> calibrate command to the WC (K), and that works, I can also set the baud
> rate on the WC, HOWEVER I cannot receive ANYTHING from the WC, it's as if
> there is nothing coming out from the TX on the WC.
>   

Hi, Charley, sorry to hear you are having trouble.

Please provide a description of exactly which pins on the WC are 
connected to exactly which pins on the Basic Stamp.  Also, please tell 
me what baud rate you are using.

Also, when you send the calibrate command, I gather that the wheels 
move, and that is how you know it works (or at least, does something).  
I assume you do not receive back the 'a' or 'n' acknowledgement bytes, 
in response to the calibrate command, right?  Do you send the calibrate 
command before or after sending the baud rate command?

Other things to try:
- use an ohm meter and confirm that the wiring on the TX line from the 
WC definitely connects between the Basic Stamp and the WC
- use the ohm meter to confirm that the TX line does not short to the 
adjacent Vdd or GND pins
- use a volt meter to confirm the voltage on the DC power input lines to 
the WC is at or above 6.2v

Sincerely,
Pete Skeggs
Nubotics Tech Support



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