Help to design a PCB for my PI design!

[ivconic]

Second tought; did i used right dip there? It is pdip or what? Just listed first page of this topic and saw photo .... not pdip there!?
Shame... however, small piggy can be put over main pcb with narrowed clearence if needed....on Atmel place...
Never worked with Atmels so far...that's why am i confused...

[1843]

Hi 1843,

A few months ago, I was working on a very similar design using a Microchip dsPIC30 series microcontroller. I could not achieve much sensitivity when sampling right after the preamp stage, as you are also doing in your design.

I am curious about the algorithm that you are using in your program. Can you please explain your algorithm?

Of course, why not? Use PM please.

Preliminary...

Now...we need only .hex for Atmel....

Waiting You and Carl to decide which one of opamps is best i decided to put both; NE5534 and TL071....booooahahahahahahaaaa!

Ivconic,

You seem don't have any experience in designing PCB... Have you used autoroute?
Please see the Minediver-1 from pulsedetektor.de... it has an ATmega8...

Because of using classic offset adjustment, any opamps can be tested and used.
NE5532 is better than TL072.

Best regards,
1843

[ivconic]

Of course, why not? Use PM please.



Ivconic,

You seem don't have any experience in designing PCB... Have you used autoroute?
Please see the Minediver-1 from pulsedetektor.de... it has an ATmega8...

Because of using classic offset adjustment, any opamps can be tested and used.
NE5532 is better than TL072.

Best regards,
1843

Ha,ha,ha...what makes you think that way? I am not using autoroute at all.
All was routed manually. Of course always can be better and better.
Except Atmel issue here i dont see other problems, reffering signal paths.
All the major "hot spots" are solved pretty descently.
Personally i would like to hear more detailed remarks. Keep on mind that i limited this previously, saying it will be single layer, through hole and with conventional components...
Minediver...yes i will check that. BTW those project from there are not some reference for to be taken seriously... Neither one from there worth minute of our attention here. Take my words or think whatever you want...same to me.
But hey, never mind... you keep asking post by post someone to draw pcb so i wanted just to start this from point zero. Better to have some start than nothing? Or maybe is better to continue asking for pcb next 120 pages here?

What was with code for that Atmel? I dont see it?
Never mind...forget...act like i never posted anything here. Would be good admin to delete my previous posts...
Sheeeshhh...

[barry]

I happy to have a shot at design of PCB. Will start on it tonight. If I get good progress I will post up progress and hopefully some input from someone who knows RF design better than me.

[1843]

Ha,ha,ha...what makes you think that way? I am not using autoroute at all.
All was routed manually. Of course always can be better and better.
Except Atmel issue here i dont see other problems, reffering signal paths.

Repost the PCB again, I'm showing you a list of obvious errors!

A few errors I remember are:
1. The first opamp was in non-inverting configuration, while the second(TL071 in your case) was in inverting...
2. I didn't see any FB resistor for the second opamp!
3. The battery connector only supplied the 7660 chip!

I'm sorry for you...
1843

[ivconic]

Yes you are right. But i respected your schematic!? I dont have any other schematic here!?!?!
I also feel very,very sorry for your case...pitty!

[1843]

Yes you are right. But i respected your schematic!? I dont have any other schematic here!?!?!
I also feel very,very sorry for your case...pitty!

Where of my schematic has two opamps opposite in gain configuration? Please show it.

Update your PCB with respect to my second schematicHERE. There's only a dual opamp(TL072), and nothing else.

Regards,
1843

[1843]

Final schematic

Here's the final schematic.


Best regards,
1843

[erolunall]

Hello

Dear 1843

Will you give source code for Amtel ?
How can people use your good designed PI?

Best Wishes
Erol

[1843]

Hello

Dear 1843

Will you give source code for Amtel ?
How can people use your good designed PI?

Best Wishes
Erol

Hi,

First of all for using my PI, you don't need the source code... only .Hex file...
Secondly there's no PCB layout to build this PI at the moment. We have to wait until someone design that.

Best regards,
1843

[Carl-NC]

You may be asking a lot, for someone to design you a PCB but not willing to share your code.

[1843]

You may be asking a lot, for someone to design you a PCB but not willing to share your code.

The PCB is for all, not me!
When you buy a kit (eg PD3200 or Goldpic), do they give you source code?

In my opinion, people need source code for PI's like Clone-PI or Miner to play with it, maybe...

Best regards,
1843

[porkluvr]

You don't want help designing a board, you want someone to design the board for you. It would probably help if you gave a list of preferred footprints or lead spacings you desire. We can probably guess that your opamp would be a dip-8, but what about your crystal? Capacitors lead spacings (note the plural)? Would 100 mil be OK for your ribbon cable, or 50mil, or what?

Are those TO-220 regulators, or TO-92? What is the trimpot(s) footprint?

This would be simple to do in Cadsoft Eagle, and would probably even fit the freeware version's 3-1/2" X 4-1/4" allowance.

What would someone get in return for turning out a PCB pattern to your satisfaction?

[Carl-NC]

The PCB is for all, not me!
When you buy a kit (eg PD3200 or Goldpic), do they give you source code?

That's fine, it's your project so you should do with it what you want. All I'm saying is, you may have trouble getting someone to do a layout for you if the project is not completely open.

Why don't you lay it out yourself? It's a simple circuit, and there are many options available.

- Carl

[porkluvr]

Eagle schematic

Schematic fits on 8-1/2 X 11. Eagle's schematics are normally butt-ugly. I modify 99.9% of all the symbols I use, and I don't like junction dots
cluttering up a drawing. I think it looks better that way.

Time to go work some more on "Elderadoo" PCB (argh).