I love this! I love it so much I already ordered a set of boards and built one to show off to my friends.  I'd love to kit these and sell them through my local makerspace, but your statement "Anyone is welcome to make and distribute these at cost. I request that you honor attribution." is a bit too vague to safely do this.  I could play all sorts of games to justify my "cost" but I'd rather have your blessing to do whatever I do.  (ie, can we profit off the parts? Can we recoup processing fees?  We _are_ a non-profit if that makes any difference to you.)  Would you consider relicensing under an accepted OSHW license so it's more clear what we can do with this?  Whatever you say, I still want to thank you for this great project.  I smile every time I see it blinking.

Hi Scott.  This was pretty much a throwaway joke and I don't intend to make it into a commercial kit, although I might end up putting a few up on Tindie if I get around to it.

You are very welcome to sell kits through your makerspace as a fundraiser if you like.  If you get a good kit set up, let me know and I might buy some from you for our makerspace, too.

https://artifactory.org.au

I'm pretty pleased with how it turned out. It would be very much appreciated if you would attribute the design to me in your kit documentation.  The URL of this project would be fine.

This is so freaking cool :-) - Is there any upgrade option to 556 ?

ordered up some of the boards from JLPCB 

Bravo!!!

I'm glad to see a project like yours.
It's not a joke.
Besides being useful to those who use the '555' for several reasons, 
your project, perhaps started as a joke, actually 
is really a good example.

Certainly it would be very useful in schools, but also among adults, as well as for the 'nostalgic', your project shows how something really 'well done' can be accomplished. 
It shows how much satisfaction can be given by the design of a HW, even if it is very simple, provided it is done WELL and without taking into account how much it can make.

Someone could consider it superfluous or even useless. But you are right: it is different to play around with components to choose and put in the right sockets than to write code.
One is not better than the other, but it is good not to forget either and to be able not only to program, but also to understand a datasheet, choose components and connect them.
These are things that with your Trollduino you have also made enjoyable.
My compliments for the idea, the suggestion, the realization.

Best. Project. On. Hackaday.

Thankyou very much.  I'm glad you enjoyed the joke.

I've added the updated Gerber files (with mounting holes fixed) to the project.  This version not tested. 

Anyone is welcome to make and distribute these at cost.  I request that you honor attribution.

Well, that clearly needs a few decades of R & C values on the board with a FET switch network to connect selected combinations to the R1/R2/C terminals -- controlled by an mcu of some sort. And a library of control functions written for some relatively accessible IDE. With a programmable mcu on board, it could control other stuff too.

Brilliant!  Not only does this board replace the 90% of Arduino boards (that only ever achieved "Blink"), you also have to admire the onboard TO220 7805 1A regulator (plenty of power for all the forthcoming Trollduino Hats), and some mention must also be made of the newly coined definition for OCD, as "Output Connection Distributer (OCD)".  Hopefully just the first of a family of Trollduino boards to satisfy a "Triple Five is Alive" maker community! :-)

I like the idea of this board very much.

I myself started with the 555 and other discreet circuitry before starting out on the Arduino and I feel it gave me much benefit, so I am happy to see that other beginners will get the opportunity to start off on the right foot.

What I do see that I would like to point out is that the 555 board seems like it only supports astable mode, how would one go about making a monostable "one shot" timer for instance?  There are so many different things one can do with the 555 timer, does this board have all that flexibility?

Disclaimer: I didn't look too deep into the board build I just had a quick look and this thought crossed my mind, I was hoping maybe you could clarify for me. 

Overall the board looks great.

Great job!

I have a bin full of useless 555 chips that I could finally find a use for. This is awesome, can't wait for the gerbers.

I would like to have the gerber files for this awesome piece of technology

Feed back has provided a few ideas I like that might get included if I feel motivated, including a wholely unnecessary ISCP header and an ATMega8uF on the USB to return the error message "I am a 555 timer" when you try to download to it with the Arduino IDE. 

Through-hole coding is so 20th century... Please consider adding some SMD footprints for the sketches.

And upgrade it with a trimmer library.

Through hole is an elegant technique, for a more civilized age :)

Possible shields considered did include one with trip pots and variable cap, but it seemed like overkill fror a stupid joke board. 

I did like the idea if a 1 x 1 x 1 LED cube.  But with a filiment lamp instead of an LED.

When is Due with the 556 coming out? 🤣

Why play catchup, skip that and go straight for quad core with a 558

👍

Trollduino Mega, perhaps :)

3 555s in a row. Three 555s in a trenchcoat.

Loved it!

Thanks

OK, you win the internet!

Thanks :)