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Topic: PCBs for Arduino project? (Read 1 time) previous topic - next topic

Robin2

I have started developing a temperature controller for my fridge (the why is a long story) and when I got to the stage of designing a stripboard shield to hold the various extra bits (leds, resistors, transistors, 5v power supply etc) I suddenly realized that it requires very little extra effort to put a standalone 8Mhz 328 chip (I already have one) on the stripboard and header pins for an FTDI cable (I already have one) so there is no need for the Uno board at all.

I was also reading this other topic http://forum.arduino.cc/index.php?topic=179754.0 and this Chipkit product http://www.digilentinc.com/Products/Detail.cfm?NavPath=2,892,1174&Prod=CHIPKIT-DP32 caught my eye. I wonder is there an equivalent for an Atmega328?

I have seen various references in various Topics on this forum to PCBs that are available for building Arduino clones but I can't remember them now and I haven't been able to find a list of them anywhere so that I can compare them. Also I don't actually recall seeing one that has space for additional parts.

I have no interest in designing and making a custom PCB - it makes no sense for a one-off project and I will be quite happy using stripboard unless there is a convenient alternative.

...R

Coding Badly


http://shop.evilmadscientist.com/productsmenu/tinykitlist/230
http://shop.evilmadscientist.com/productsmenu/tinykitlist/74-atmegaxx8

http://www.adafruit.com/products/795

http://www.freetronics.com/collections/arduino/products/eleven#.UfTcwW2yWZQ

Robin2

Thanks for those links, but they aren't quite what I have in mind.

The Evilmadscientist product is too small and hasn't enough space for building a complete project and the other two are just as expensive as an Uno.

...R

fungus

Putting a Mega328 onto stripboard is easy, the tricky part is all the other components.

IMHO those boards offer very little advantage (apart from having the Mega328 pinout printed on them).

No, I don't answer questions sent in private messages (but I do accept thank-you notes...)

mrburnette

Sometimes, you can get a bit aggressive with the "PU" DIPs:
http://www.instructables.com/id/Build-A-FLAT-duino/
Not a pretty pig, but functional and inexpensive for one-off projects.


Ray

mrburnette

Quote
IMHO those boards offer very little advantage (apart from having the Mega328 pinout printed on them).


Ummmm..... Agreed.
My suspicions are that many hobbyist-enthusiast simply gravitate to labeling as the Arduino physical/logical mapping is an uncomfortable topic.  Worst, it is often inconsistent!

Capitalism, long live capitalism... Selling stuff to the masses they do not need  :D

Ray

LarryD

Quote
IMHO those boards offer very little advantage (apart from having the Mega328 pinout printed on them).

The way you have it in your schematic isn't the same as how you have it wired up!

mrburnette

Ummmm... a 30-cent sticker for a $2.00 chip seems a bit excessive.  Do people really do this?  Rhetorical question!  OF course they do or the labels would not be advertised.

Free: http://forums.adafruit.com/viewtopic.php?f=44&t=18957&p=98175#p98175

And... I've seen others on the web without the logo and with wrap-down skirts and so on...  Just buy a roll of double-stick tape and have at it.


LarryD


Ummmm... a 30-cent sticker for a $2.00 chip seems a bit excessive.  Do people really do this?  Rhetorical question!  OF course they do or the labels would not be advertised.

Free: http://forums.adafruit.com/viewtopic.php?f=44&t=18957&p=98175#p98175

And... I've seen others on the web without the logo and with wrap-down skirts and so on...  Just buy a roll of double-stick tape and have at it.


Yes, free is nice:
http://dl.dropboxusercontent.com/u/2295566/BLOG/arduino%20label/ARDUINO%20BREADBOARD%2028%20PIN%20LABELS.ai
The way you have it in your schematic isn't the same as how you have it wired up!

Nick Gammon

I use strip boards for projects like that, here is an example:



http://www.gammon.com.au/forum/?id=11165

I've also used the EvilMadScientist board for projects where I only need a few extra parts. Saves a bit of mucking around.
Please post technical questions on the forum, not by personal message. Thanks!

More info:
http://www.gammon.com.au/electronics

CrossRoads

Not as neatly labelled ...
Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

Jack Christensen

Here's an approach I took for a circuit that I use occasionally but did not want to dedicate the various modules to, so I soldered female headers to the protoboard.

The microcontroller is an AFI DC Boarduino; a Pro Mini would work nicely as well. With its built-in 5V supply, the Boarduino relieved me from the task of having to wire up a power supply on the protoboard.



MCP79411/12 RTC ... "One Million Ohms" ATtiny kit ... available at http://www.tindie.com/stores/JChristensen/

Robin2

Hi Nick,

I haven't come across the sort of stripboard you have used - it's probably what I'm looking for. It looks easier to use than Veroboard. Is there a brandname or a UK supplier?

Your project looks very neat - but why not use your phone???? :)   :)

....R

fungus


I haven't come across the sort of stripboard you have used - it's probably what I'm looking for. It looks easier to use than Veroboard. Is there a brandname or a UK supplier?


PCBs that have the same connections as a breadboard?

Search for "breadboard pcb" on eBay.
No, I don't answer questions sent in private messages (but I do accept thank-you notes...)

Nick Gammon


Hi Nick,

I haven't come across the sort of stripboard you have used - it's probably what I'm looking for. It looks easier to use than Veroboard. Is there a brandname or a UK supplier?


This is what it looks like:



I don't know any more than that, except I probably bought it from Jaycar in Australia.

Quote
Your project looks very neat - but why not use your phone???? :)   :)


I don't think I have seen a single "alarm" app that sounds Monday to Friday but not on Saturday/Sunday. Surely millions of people must want that?
Please post technical questions on the forum, not by personal message. Thanks!

More info:
http://www.gammon.com.au/electronics

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