Are The Propeller Proto Boards Being Discontinued?
idbruce
Posts: 6,197
The subject of Propeller Proto Boards possibly being discontinued came up in another thread and I am seeking a definite answer. Is it true that Parallax is discontinuing my beloved Proto Boards?
Comments
http://forums.parallax.com/showthread.php/157349-P8X32A-Q44-Shortage-Expected-place-your-orders/page2
Post #35
I'm beginning to like the project board a lot more. More features and a friendlier prototyping space.
By name and stock code, yes, but by functionality the Propeller Project Board should provide a superset of capabilities at the same price. If this doesn't make people happy we'll bring back the Prop Proto Board, but before we jump to conclusions about which one is best for our projects it would make sense to compare them in terms of features, price, etc. This comparison should probably be made from Parallax since you haven't seen the new Propeller Project Board yet.
Ken Gracey
The Proto boards had a 5V voltage regulator which was great for using the LCD and various sensors, etc while the Project board only supplied 3.3V.
Is there any chance the new version will have a 5V regulator/supply?
I've made up several LM2940 boards with a push button switch and LED to use with the QuickStart, etc when I need 5 volts but it would be nice if it was onboard...
Thanks! Didn't notice that. I don't have the project board yet.
Think you need a surface mount regulator (TO-263) or could you use a thru the hole TO-220?
Digi-Key LM2940CS-5.0 SMD 3 lead + Tab about $2.00 ea single
Darn! I just received a package from DigiKey. I would have ordered some TO-263. I guess the new board will use the same.
I got the documentation for the board but I'm sure the new board will have updated documentation.
Thanks again!
Sorry it took so long to get around to replying......
Not that I expect Parallax to build custom products or retain older products just for me, especially since I purchase boards in such small quantities, but the phase out of the Proto Board is very disturbing to me.
In my opinion, the Proto Board is a very well designed circuit board. It is especially elegant with the IO pins and supply pins coming out around the perimeter of the Propeller, in addition to the 5V regulator and the servo port hookup area. This circuit board allows for neat and tidy work, which permits easy troubleshooting for very complicated circuirty or wires that must be easily traced. Additionally, this board is an active substitute for custom made PCBs.
As you say, I have not seen a project board with the latest revisions, but I can compare the Proto Board against the latest datasheet available for the Project Board. As I see it, and although I have never purchased one, the Project Board is definitely a handy board also, but for different purposes. To me, the Project Board would be an essential product, for quick, down, and dirty prototyping, which would eventually end up at a PCB fab shop, however, I would not like trying to troubleshoot any serious wiring on that board, since all the pins basically come out from end a corner of the board. If all 32 pins were to be utilized, it would be a tad difficult to trace the wires.
Please do not misunderstand me.... I am not trying to insult the Project Board in any form or fashion... I just believe it has a totally different function than the Proto Board. If I wanted to make custom PCBs at a fab shop, I would utilize the Project Boards, but if I wanted my prototyping to be the final board, it would be the Proto Board hands down.
But as you say, I have not seen the last revision.
I guess one of the key points that I want to emphasize is this.... According to the datasheet of the last revision of the Project Board, I doubt I could achieve wiring like this that would be easy to track and troubleshoot, for a permanent solution.
Thanks for listening to my two cents.
I agree, and also the Proto board is good for Graphics and Sound projects that were developed on the Hydra and Demo boards.
Any additional input about Project Board vs. Proto Board please post a reply. - Ken
They are "tried", "tested", and "true".. It's a no-brainer.
Jeff
I like the USB version of the Proto Board, it has all the right features for building things.
A five volt regulator, the Servo headers, and easy to use Keyboard, Mouse, and VGA options.
My only complaint is the Reset button, it would be nice if there were solder pads so the Reset button could be put anywhere I wanted on a project.
It was the first Propeller I bought, And I am glad I did, It's a tough little board.
-Tommy
I think each I/O pin is available from two different locations on the Project board (though they are all from the same corner of the board). IMO having a larger prototyping area more than makes up for the having all the I/O connections on one side of the board. I've had many projects were there seemed to be plenty of prototyping area left on the (Proto) board but no one area was large enough for the component I needed to mount.
I do think the central chip location of the Proto Board would be an advantage when long traces could present a problem but I still doubt I'd purchase a Proto Board once the Project Boards are available.
The main thing is I want an inexpensive Propeller board! Even if I have to buy five at a time, I'd really like a $20 Propeller board (though I could live with a $25 board).
I originally thought the surface mount area on the Project board a waste of space, until I used it. It seems like almost all my projects need at least one surface mount chip and it was really nice to have a place on the board to mount the chip (in my case it was a SOIC MCP3208)
Interesting.
I went to Parallax and i can't find either proto board.
Are they there and i just can't use the internet?
cheers,
rich
The Protoboard in question is at this link:
http://www.parallax.com/product/32212
The Project Board is at this link:
http://www.parallax.com/product/32810
Both boards are currently unavailable. Proto is out of stock and Project Board is under revision. To see all information about either board use the Parallax.com link at the top and search for 32212 for Proto or 32810 for Project Board.
aarrgghhh! Too late by two minutes!!
I think the power supply is a big deal. And in that regard, I'd think the opposite of Bruce. I'd use the Proto board for quick prototyping because it's has linear power supplies which are bullet proof. I've tried hacking around on the project boards in the past and on more than one occasion have destroyed the switching power supply circuit which causes coasterization. Once the hacking and slashing is done with my circuit, I can safely transfer the design to the project board and enclose it nicely. But, if the power supply circuit is being robustified on the new Project board, I could live with just that board as the only option.
Thanks,
Marcus
ErNa
Great for DIP sockets
(click on thumbnails for larger images)
Mounting holes are compatible with Parallax 4"x3" pcb mounting holes.
See
http://www.mikronauts.com/proto/ezaspieproto300/
and
http://www.mikronauts.com/proto/ezaspieproto600/
respectively.
Yeah but on the Propeller board prototyping area.
Nice boards BTW!
You mean like this?
(click on thumbnail for larger image)
Sapieha did a beautiful job on the layout (as usual)
http://www.mikronauts.com/parallax-propeller/propteus/
Catches:
- not smt
- I can't sell as cheaply as Parallax (I don't own/manufacture the Propeller, and don't have the volume Parallax does)
Linked pads are great when you are using the board in a way which takes advantage of the links but I find more often than not the various linked pads just get in the way of using the prototyping area the way I want.
As long as the prototyping area doesn't have a ground pour between the pads, I can just lay a wire down on one side of the board to join whatever pins I want where I want.
If anyone is taking votes, I vote against linking pads except at the edges of the board (as done on the Proto boards).
The Vss bus on the Proto boards can be very useful but just as often (probably more often than not) it blocks me from placing components where I'd like.
I was just reviewing the Project board's pdf and I like the way the buses are done on it. The power and ground lines on the Project board are all kept near the edge of the board leaving the central prototyping area free from dividing lines.
http://forums.parallax.com/showthread.php/146944-Propeller-Project-Board-USB-VGA-issues?highlight=Project%2C+VGA
I don't see any huge changes to the layout. But hey, Parallax may surprise us.
Bruce, why don't you start another thread with a poll for the Proto Board to continue?
Remember you asked for opinions!
I really like the prop activity and the prop-boe but not the quickstart so much. I've considered making a ribbon cable that will allow me to extending the pins from the quickstart to a breadboard. I would really like a prop-boe type board that only consume the prop pins
As far as the project/proto boards go I never did like the proto board having the prop in the center of the board but would like having a project board that uses a prop plug rather then onboard usb.
Hello Parallax Staff,
I love the USB version of the Proto Board (seems to be gone?) ... please bring it back! If I had known they were about to disappear ... I would have ordered a dozen of them! GIVE THE CUSTOMERs WHAT THEY WANT. That doesn't mean I will not purchase other products as well ... example, I still use the PPDB for many projects ... but it doesn't come close to the Proto version. (Size, Weight, Cost, etc.)
... Tim
PS - Could you pass me a apple fritter please?