Subject:
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Re: LMD18200
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Wed, 8 Apr 1998 22:29:07 GMT
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Original-From:
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Scott Mitchell Simon <SMS7@saynotospamARL.WUSTL.EDU>
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Reply-To:
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Scott Simon <sms7@arl.wustlNOSPAM.edu>
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Viewed:
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1603 times
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<FontFamily><param>Courier New</param>We've used the Wirz boards with great success here at Washington University.
I can answer both of your questions at once, since they're the same thing.
YES. Take the drivers off the handyboard, because now the wirz boards will
connect to those sockets. If you have the bridged 18200 board, then each
socket can control 2 boards. If you have the non-bridged version (ie, the wirz
board will control 2 motors independently) then each socket connects to two
boards.
Here's how the pinnouts go for the non-bridged version:
Wirz Board Connector: L293D Pin:
---------------------------------------------------------
--------
3 (M1 PWM) 1 (Chip Select 1)
4 (M2 PWM) 9 (Chip Select 2)
5 (M1 Brake) No Equivalent (Use a digital
output to brake the motor,
or tie it low)
6 (M2 Brake) same
7 (M1 Direction) 2 (input 1, dont need in2)
8 (M2 Direction) 10 (input 3, dont need in4)
9 (M1 Thermal) none (goes high when chip
overheats)
10 (M2 Thermal) same
11 (M1 Current) Analog signal of current draw
12 (M2 Current) same
If you have the bridged 18200 board, then for each
motor use a single board per motor. In the bridged
version the M1,M2 pins are connected, so use whichever
ones you want. Just connect the first board to the M1
L293 equivalents and the second to the M2 equivalent
pins.
Hope this helps!!!
> I just bought the motor driver kit from wirz
electronics, and I have
<color><param>7F00,0000,0000</param>> finished putting it all together. My question is, do I take the motor
> drivers off of the HB and put them on the wirz board, or do I leave them
> on the HB.
</color>
<color><param>7F00,0000,0000</param>>
> Question 2: Assuming I have figured out #1(see above) where do I connect
> the wirz board to? Should I be using the servo routines, or does it plug
> in where the motor drivers on the HB go?
>
> Thanks everyone,
> Mike
>
>
</color>
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<nofill>
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Message has 1 Reply:
 | | Re: LMD18200
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| With the non-bridged board, each socket will control 2 boards. So for board 1, you'll connect to pins 1 and 2 in the socket, and for board 2 connect to pins 9 and 10. The other pins you can do as you please (for the brake, current sense, and thermal (...) (27 years ago, 9-Apr-98, to lugnet.robotics.handyboard)
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Message is in Reply To:
| | LMD18200
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| I just bought the motor driver kit from wirz electronics, and I have finished putting it all together. My question is, do I take the motor drivers off of the HB and put them on the wirz board, or do I leave them on the HB. Question 2: Assuming I (...) (27 years ago, 8-Apr-98, to lugnet.robotics.handyboard)
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