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Forum Index : Microcontroller and PC projects : Hardware Standards
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donmck Guru  Joined: 09/06/2011 Location: AustraliaPosts: 1313 |
There is a list of compatible Cards at: http://www.themaximitecomputer.com/maximite-control/ And I am updating this list when I get new information. Cheers Don... https://www.dontronics.com |
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| donmck Guru Joined: 09/06/2011 Location: AustraliaPosts: 1313 |
Is it the 31st of June yet? Just waiting for the 48 hours to be up. Fortunately, even the Arduino guys can't agree on signal names, so ours must be correct. :-) http://www.practicalmaker.com/blog/arduino-shield-design-sta ndards I see they are using a double set of stacker pins for BNC connectors for instance, and they are looking for better solutions. I think the only solution is to double up on the stacker pins. If you used stackers that were higher, you would then need 6 pin high, 6 pin standard, 8 pin high, 8 pin standard. Solder the standard to standard boards, and the high to the high component boards. I don't think so. If the high board is fitted at the top of the stack, then you don't need high. Argument could go on forever, just use an extra set of stackers if you need them I think is the simple solution. Cheers Don... https://www.dontronics.com |
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| donmck Guru Joined: 09/06/2011 Location: AustraliaPosts: 1313 |
Do I have time for a supplementary question? The Arduino bus. Is there a set of pin numbers, or a numbering system, for pin identification? Even the groups of four individual pins don't seem to have a name. It's like getting on the bus without a ticket to ride. Sound like a song title. Thanks Cheers Don... https://www.dontronics.com |
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| donmck Guru Joined: 09/06/2011 Location: AustraliaPosts: 1313 |
Well my watch says it is the 31st of June, so the 48 hours is up, and no last minute requests to declare the mating of these two great products as unlawful, so I now declare the bus signals as being correct. Do we need a ring or anything? A bottle of bubbly? Thanks Chuck, for acting as cupid (yes, I did say cupid) :-) on this occasion, and I hope it doesn't come back to bite you on the back side too hard, at some stage in the future. And thanks Bill for tying my shoe laces together before I went off in another direction. I am totally convinced that the stacking arrangement is the right way of doing this, and that the Arduino bus seems to be the only logically way to go. I see there are all sorts of Arduino names, and variants: HueyDuino, DuweyDuino, and LouieDuino may well be there too, as well as KitchenSinkDuino. So I guess I can live with a DonDuino, as I am calling my first conversion board. I'll try drawing up a table. It would be nice to have some Pin Numbers, or group names of the sets of pins, on the Arduino bus, but we can live without it for now. It will fall out eventually. Cheers Don... https://www.dontronics.com |
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VK6MRG Guru Joined: 08/06/2011 Location: AustraliaPosts: 347 |
Hay Don, Just so I can get my head around what is happening here, you are designing a maximite to Auduino pinout converter board? With maybe some extra power or the provision for extra power and that it? If that’s all then it shouldn't matter too much if the pinouts are a bit different from one type of Arduino product or another as you could always bring out a new/another series of the "DonDuino" as we or the Arduino changes. Sounds like a great idea. And may be a similar system could be used to develop other dedicated boards to add to the maximite.  Its easier to ask forgiveness than to seek permission! ............VK6MRG.............VK3MGR............ |
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| donmck Guru Joined: 09/06/2011 Location: AustraliaPosts: 1313 |
That is basically it Matthew. To summarize, Cap'n Bill sold me on the Arduino stacker concept, Chuck endorsed that, and threw me a set of suitable signals. I have been working on a converter board. It has already gone through the mixer a few times in our mini committee, however it will be either a sea of holes in the middle, or a power supply. A lot depends on how this version lays out. It may well be that power supplies for Arduino stacks are already ebayable getable for el-cheapo-ay-able prices. Is ebayable a word? AND/OR any of the others? We are old and creative, we don't have time for the niceties, we need to get on with it. So we may be wasting our time, and users want just a convertor, or a convertor with a little bit of proto area so that you can add a simple sensor or what have you. But I have something up my sleeve which I won't let out just yet, and it is the Pièce de résistance and I don't want the Chinese rip off merchants to get in ahead of me. Cheers Don... https://www.dontronics.com |
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| pito Newbie  Joined: 09/06/2011 Location: Posts: 25 |
Hi Don, the chipkit's UNO32 "arduino" board could be populated with mx695F512H or mx795F512H (Maximite's chips) as the pin layout is the same except 2 pins, which have other functions on mx695/795: RF2 ### U1RX/SDI1/RF2 RF6 ### U1RTS/BCLK1/SCK1/INT0/RF6 and the UART1 is at: RD2 U1RX/OC3/RD2 RD3 U1TX/OC4/RD3 So practically  you can modify the chipkit's "core" definitions (wiring, pins) and boards.txt in order to run "arduino" on Maximite hardware or to run Maximite on UNO32 hardware (plus minus). P.
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| donmck Guru Joined: 09/06/2011 Location: AustraliaPosts: 1313 |
Hi Pito, thanks, it is a matter of configuring the map to suit. I got an email yesterday from Geoff on this subject, and posted it at: http://www.dontronics-shop.com/usb-32-bit-whacker-pic32mx795 -development-board.html Cheers Don... https://www.dontronics.com |
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| donmck Guru Joined: 09/06/2011 Location: AustraliaPosts: 1313 |
As a result of this thread, I have posted a Maximite to Arduino conversion look up table at: http://www.themaximitecomputer.com/donduino-bus-convertor-ta ble/ Any product that I produce based on this conversion, I will be calling the DonDuino range. First one off the block will be a simple convertor board, so that users can get involved in the Arduino range of products, without the hard work. They will simply plug together. Hardware and software will be the full responsibility of the user, as there are no guarantees on compatibility, or support, so you are on your own. Please let me know if you find any errors in the table, or have any questions. Cheers Don... https://www.dontronics.com |
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| donmck Guru Joined: 09/06/2011 Location: AustraliaPosts: 1313 |
Here is a question for Cap'n Bill and Chuck. Check out this picture: 
Notice how it uses female up, male down, to save cost of stacker pins I guess, but isn't the bottom foot print .1 +.1 = .2" wider than the top? Cheers Don... https://www.dontronics.com |
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elproducts Senior Member  Joined: 19/06/2011 Location: United StatesPosts: 282 |
Or they have to swap the connector locations on the next layer. Its a dumb design and costs more than the true stacker design Arduino shields typically use. I stay away from that. www.elproducts.com |
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jebz Regular Member  Joined: 13/06/2011 Location: AustraliaPosts: 79 |
A cheaper way to transition to the breadboard may be a 0.3" DIL IDC connector like this one - IDC from Farnell. A 26 or 28way one is needed but a cheap way out would be a 10way and a 16way connector mated to the 0.1x0.1 26way IDC ribbon connector. This would make connection to the breadboard with a few available connection for each signal. |
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| donmck Guru Joined: 09/06/2011 Location: AustraliaPosts: 1313 |
Thanks for the clarification Chuck, I'm glad you said that because that is what I was hoping, and the direction we are going. True Stacker is so simple, that I have trouble explaining it to people. A week ago, I didn't know what the stacker pin was, or how it was used. Now I am a stacker :-) Cheers Don... https://www.dontronics.com |
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| donmck Guru Joined: 09/06/2011 Location: AustraliaPosts: 1313 |
I have used this sort of thing in the past. The problem is that you need a screw driver or similar to ease the headers out, and try not to bend or break the flimsy pins. If you use standard IDC cables, you can get monkeys to plug them in without damaging them. I know, I worked with lots of them. Did I say that? Cheers Don... Footnote before the next reply stops me editing. I may have mis-read that last message jebz. The headers are great for bread boarding. https://www.dontronics.com |
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