NEED HELP with StampBug 2 kit (#5-953)

RYAN'S dISTRICT · 2006-05-03 19:40

hello i just had StampBug 2 kit (#5-953) on my birthday
i built the bug i uploaded the software ( code) from my pc on it and it started walking

but please can you modify for me the default code ( or a new one) so that i make it do anything other than walking in that manner
it can be dancing making tricks and such stuff or a nice walking way

Please help me guys

A.C. fishing · 2006-05-03 20:56

Is there an online website about this StampBug? I have never heard of it.

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-Never Underestimate the power of human stupidity.

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RYAN'S dISTRICT · 2006-05-03 20:58

donno its from u guys but
plz help me

Paul Baker · 2006-05-03 21:21

Stamp bug is a Milford Instruments product, a Parallax distributor. http://www.milinst.com/

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1+1=10

Jon Williams · 2006-05-03 21:22

Parallax does not [noparse][[/noparse]currently] make anything called StampBug. Are their any other labels on it? Can you upload a photo?

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Jon Williams
Applications Engineer, Parallax

Gadgetman · 2006-05-03 21:31

The Stampbug 2 was made by Milford Instruments in England.
(http://www.milinst.com )

It's a Hexapod-type(6-legged) robot with an OEM BS2 built into it, if I'm not mistaken.

While I doubt Parallax is supporting it, the PBasic manuals downloadable from Parallax and all their other freebies should still be valid for the StampBug.

So, I'll just congratulate you on taking the first step on the road to learning to program, then point you to these pages:

http://www.parallax.com/html_pages/downloads/basicstamps/documentation_basic_stamp.asp
Here you download the Basic Stamp Manual.

http://www.parallax.com/html_pages/downloads/software/software_basic_stamp.asp
Here you download the latest version of the Editor.

http://www.parallax.com/html_pages/downloads/sw/sw.asp
And the StampWorks documents will also teach you a lot.

And finally, you should hang out in the 'Robotics' part of the forum here.

For others interested in how it looks and the program listing,
http://www.robotwinkel.nl/pdf/Manuals/Lopende_Robots/bug2.pdf
That is the User manual.

Isn't Google fun?

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RYAN'S dISTRICT · 2006-05-04 15:27

thx dude that what i mean
Please can u tell me weather there is a style of moving that bug other than normal walking by useing the code with the floppy disk that i had with the bug or i can be creative in the bug moves

If there is premade codes ( other than walking) that will be great if u give me a link where i can find them

Gadgetman · 2006-05-04 15:44

I'm afraid that without seeing the program that was included with the robot, there's very little we can do to help you as according to the documentation, it has some sort of dedicated co-processor for handling the servo-movements.

The commands needed to change how it walks should be in the program source.
Could you post it as an attachment here?
(but don't paste it into a post. It'll jsut end up garbled)

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RYAN'S dISTRICT · 2006-05-04 15:53

ok i atatched it

Gadgetman · 2006-05-04 17:54

Great!

The trick here is the subroutines. Lets take a look at 'forward':

forwards:                'walk one step forwards- provide gait, lift, speed
    high right_eye:low left_eye
    servo=middle
    serout tx\flow,baud,[noparse][[/noparse]command,midptm-lift]
    gosub finished        'wait for weight to shift

Here it orders it to move the middle servo, then calls a subrutine, 'finished', to wait for it to finish that movement.

    servo=right
    serout tx\flow,baud,[noparse][[/noparse]command,midptr+gait]
    servo=left
    serout tx\flow,baud,[noparse][[/noparse]command,midptl+gait]
    gosub finished

And now it ordered the other two servos to move, then wait for it to finish.

    low right_eye:high left_eye
    servo=middle
    serout tx\flow,baud,[noparse][[/noparse]command,midptm+lift]
    gosub finished        'time for weight to shift
    servo=right
    serout tx\flow,baud,[noparse][[/noparse]command,midptr-gait]
    servo=left
    serout tx\flow,baud,[noparse][[/noparse]command,midptl-gait]
    gosub finished
    return

Another set of servo movements.
If you want to see more clearly what they do, insert a PAUSE command in the places where I broke up the code.
If you want it to walk with a different gait you'll need to change the order and direction the servos move. (It probably moves in the optimal gait already, though)

Also, the 'finished' rutine checks the feelers to see if they are touching something, and if so decides whether or not to call one of the other rutines.

The easiest changes that can be done is to set the speed to something else, which can be done by setting the 'speed' variable either higher or lower(a max of 15).

Changes that can be done in the 'finished' rutine, f.example, is to add a photodiode to the system, then add a test in this rutine.
Then you could make it speed up in strong light, and slow down in low light/darkness?

But before you do that I suggest you read the documents I pointed you towards.
Just be careful not to use I/O-pins 0 to 7 when you experiment, as these are already taken by the servo controls.

And of course, 'make haste slowly'.

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RYAN'S dISTRICT · 2006-05-04 18:19

what do u mean by "Just be careful not to use I/O-pins 0 to 7 when you experiment, as these are already taken by the servo controls.
"
and where can i change the speed ?

Gadgetman · 2006-05-04 18:34

If you do anything to those pins you might start the servos moving unintentionally.

To set another speed, see this piece of code in the first third of the source code:

start:                'Normal motion
    feeler_flag=1        'arm feelers
    speed=6            'set to moderate speed 
    gosub forwards        'start by moving forwards
    goto start            'repeat until something happens

Also, the 'feeler_flag' variable...
If it's set to '0' it will ignore the sensors and just barge on like a pint-sized ramrod...

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RYAN'S dISTRICT · 2006-05-04 18:45

editing the code in anyway will it cause any hardware damage for the bug ? cuz i want to learn its langauge on trail and error
i installed the default code now i use the softeware and click run and it will overwrite the data on the bug ?

Gadgetman · 2006-05-04 20:15

Very little you do can do physical damage to the hardware.
It's just that you may not want it to suddenly jump across the table when you were trying to get a LED to blink...

Yes, using RUN on the PC will overwrite the data on the bug.

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RYAN'S dISTRICT · 2006-05-04 20:29

by the way can u give me tricks such as the speed trick

Gadgetman · 2006-05-04 20:33

I already did.
I told you which variable to change, and even posted the section of code where you should do it.

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NEED HELP with StampBug 2 kit (#5-953)

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