Driving a roboclaw motor controller with the basic stamp

PAPCH · 2012-03-25 08:06

Hello, I would like to drive a roboclaw motor controller with my basic stamp. Would someone please tell me the equivalent of this BasicAtom pro line ( Serout P15, i19200, [128, 5, 127, (260 & 0X7F)] ) for a Basic Stamp 2? Thank you in advance for your help.

ratronic · 2012-03-25 15:33

PAPCH to use the serout command in PBASIC, click on Help, then click on PBASIC Language Reference, then scroll down the command list to "serout" and click on it for information on how to use the command in PBASIC from the BASIC Stamp Editor menu.

Edit: when I say click on help I mean the book icon with question mark in it on the right end of all of the icons at the top of the editor

erco · 2012-03-25 19:06

@PAPCH:

Please decode the BA command ( Serout P15, i19200, [128, 5, 127, (260 & 0X7F)] )

lanternfish · 2012-03-27 23:26

( Serout P15, i19200, [128, 5, 127, (260 & 0X7F)] ) is the same for both chips.

Serout on Port 15 @ 19200 baud

Data output is [128, 5,127, (260 AND 0x7F)]

If you go to the AtomPro website you can download the AtomPro manual. On pg 211 there is a guide to converting Basic Stamp programs to AtomPro MBasic. So you should be able to easily reverse the proces.

PAPCH · 2012-03-28 04:39

I checked the basic stamp manual and I didn't see any baud rate of 19200 for the Serout command. Please help me to convert the line (Serout P15, i19200, [128, 5, 127, (260 & 0X7F)]) into pbasic. I desperately need it for my project.

Thanks in advance.

ratronic · 2012-03-28 09:02

Now that lanternfish interpereted the Mbasic code I am posting how to calclate the baudrate # (how I came up with 32 for 19200) for the BS2's as it doesn't show for that high of a baud rate in the help manuel. This is from the BasicStamp syntax reference manuel. Also I'm not sure whether a BS2 can do math in the serout statement maybe one of the Stamp experts can jump in and correct me if I am wrong. But here is one way you could do it.

' {$STAMP BS2}
' {$PBASIC 2.5}

'constants
Baud  CON 32  '19200 baud for BS2
TxPin CON 15  'BS2 transmit pin

'variables
a VAR Byte
b VAR Byte
c VAR Byte
d VAR Byte

'program

DO

a = 128
b = 5
c = 127
d = (a + b + c) & $7f

SEROUT TxPin, Baud, [a, b, c, d]

LOOP

PAPCH · 2012-03-29 09:32

Thanks a lot im going to see if it works. :-)

Publison · 2012-03-29 09:39

In reality, the BS2 can not communicate very well over 9600 baud. Can you set your RoboClaw to accept this baud rate?

Jim

Driving a roboclaw motor controller with the basic stamp

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