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Subject: 
Re: FW: Serial Communications.
Newsgroups: 
lugnet.robotics.handyboard
Date: 
Mon, 21 Jul 1997 19:22:00 GMT
Original-From: 
Lipsett, Mike <lipsett.mike@syncrude.&SayNoToSpam&com>
Viewed: 
298 times
  
Hi Fred:

The Mini SSC does have a TTL-mode, but it needs inverted data i/o mode.
Rather than figuring out how to do that in s/w I just used the MAX232
because it was easy and it made debugging easy into a dumb terminal program
on my PC.

I've had several requests, so I'll definitely post the code and diagram to
the group.

Cheers,
- Mike


----------
From: Fred G. Martin
To: Lipsett, Mike
Cc: Handyboard Mailing List
Subject: Re: FW: Serial Communications.
Date: Monday, July 21, 1997 11:45AM

Mike --

Doesn't the Mini SSC have a TTL-levels mode, making the MAX232
unnecessary?

Please send your serial output code, though.  that would be good to
distribute.

     -Fred

In your message you said:

Hi John:

I've used the HB to send serial command strings to a Mini SSC (for the
Lynxmotion arm).    I built a tiny daughterboard with a MAX232 that • plugged
into J6 on the board for power.  Software handshaking is minimal and the
MiniSSC works fine.  If I didn't already have the Mini SSC, I'd use a • Stamp
to control the servos, as the Duncan Orthner suggested.

If anyone wants to go the HB -> Mini SSC -> RC servo route, let me know • and
I'll post the code and wiring diagram.

Cheers,
- Mike

----------
From: John Hatton
To: 'Handyboard Mailing List'
Subject: Serial Communications.
Date: Monday, July 21, 1997 2:40AM

I am considering using two MiniSSC II servo controllers from Lynxmotion
(http://www.lynxmotion.com) to control the servos on a six leg walker
using the handyboard as the CPU. The only problem is that the MiniSSC
uses asynchronous serial communication. Is it possible to use the
asynchronous serial port on the handyboard (possibly by using a
mutliplexer to choose between the servo controllers and PC comms).

Thanks in advance for any help.

John Hatton
johnha@icsplc.co.uk




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