 | | To Add my 2.5 cents
|
|
I think the expansion board is A-OK as it is. (I'm being rather selfish since the Hartford Firefighting contest is in April). -Jim (28 years ago, 8-Feb-97, to lugnet.robotics.handyboard)
|
| |
| | large # of digital I/O's
|
|
Check out the 82C55. In a 40 pin package, it has 24 bits of digital bidirectional I/O, and can be bit- or byte- addressed. It's cheap (like $4 or so in quantity). The 40-pin DIP package is big, but not compared to 3 20-pin DIP packages which it can (...) (28 years ago, 8-Feb-97, to lugnet.robotics.handyboard)
|
| |
| | FW: I agree-
|
|
Servos outputs are good, but generic handyboard serial output to Scott Edward's Serial Servo Controller would be faster to implement and design, much and simpler to work with, and would be extensible to other serial projects too. (...) (28 years ago, 8-Feb-97, to lugnet.robotics.handyboard)
|
| |
| | FW: expansion board schematic posted
|
|
I'd agree with this option - I don't need any more inputs, but I do need 4 logical outputs 2-4 Hi-current outputs Serial communications 1 (preferably 2) sonar connectors I could really use that second sonar. I don't suppose there is a way you could (...) (28 years ago, 8-Feb-97, to lugnet.robotics.handyboard)
|
| |
| | Re: expansion board schematic posted
|
|
While I've only been working with the Handy Board for a week or so, I would also like to see several more outputs added. Perhaps some combination such as 8 digital (CMOS) outputs, and 8 of the dual-transistor types. If you could rig it up with (...) (28 years ago, 8-Feb-97, to lugnet.robotics.handyboard)
|
| |
| | Dum spiro spaero (While I breath, I hope)
|
|
(...) Thanks, Randy, my good man! Sorry if took a bit of playing with good old "honoris studioso". But you can't blame a guy for trying. Especially if it yields results. :) Alex. (28 years ago, 8-Feb-97, to lugnet.robotics.handyboard)
|
| |
| | IC development
|
|
(...) OK, Uncle! I apologize that, at times in the past year, IC development has taken a back seat to our 32-bit C environment and vision system development. We realize that we have made a commitment to the community to come out with IC 3.1, and we (...) (28 years ago, 7-Feb-97, to lugnet.robotics.handyboard)
|
| |
| | Re: Expansion board
|
|
Hi Everyone, We (Digital Micro Systems) have an expansion board which we've been beta-testing for a while, but have not released yet. This seems like an appropriate time to ask for any feedback regarding the design before release. Anyway, the (...) (28 years ago, 7-Feb-97, to lugnet.robotics.handyboard)
|
| |
| | Re: IC
|
|
(...) from commitments. How MITesque! That is why we had to drop HB development for our equipment and look for another platform. If you are in the same situation take a look at (URL) You might like it. Alexander A. Chaihorsky V.P. Engineering, (...) (28 years ago, 7-Feb-97, to lugnet.robotics.handyboard)
|
| |
| | (no subject)
|
|
(...) from commitments. How MITesque! That is why we had to drop HB development for our equipment and look for another platform. If you are in the same situation take a look at (URL) You might like it. Alexander A. Chaihorsky V.P. Engineering, (...) (28 years ago, 7-Feb-97, to lugnet.robotics.handyboard)
|
