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Paperduino 2.0 with Circuit Scribe - Paper Arduino

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Picture of Paperduino 2.0 with Circuit Scribe - Paper Arduino
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What if making an Arduino, or wiring up an Arduino was as easy as printing one out? In this tutorial we printed our own Arduino Pro Mini board using a pen plotter and the Electroninks Circuit Scribe (a rollerball pen with highly conductive ink). Within 15 minutes we printed the board, placed components down with glue or tape, and uploaded a sketch.

Materials needed:
Circuit Scribe conductive ink pen
Silhouette SD plotter
8.5x11" glossy photo paper
Electroninks Arduino connection kit
FTDI cable
USBtinyISP bootloader or a pre-bootloaded Arduino chip
Superglue (Loctite gel) or Z-tape

Software:
EAGLE PCB (if you want to modify the board)
Arduino IDE
Silhouette Studio

Downloads:
Paperduino 2.0 Schematics and Layout (EAGLE)

Components list:
View BOM (ordering list) on Google Spreadsheet
2x 10 uF capacitors (1206 package)
3x 0.1 uF capacitor (1206)
2x 10 KOhm resistors (1206)
330 Ohm resistor (1206)
ATmega328P-AU
Red LED (1206)
Green LED (1206)
5V voltage regulator (5 pin)
8 MHz resonator
Tactile switch
 
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Step 1: Editing the layout in EAGLE

Picture of Editing the layout in EAGLE
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Our Paperduino design is based on the open source design for the Arduino Pro Mini. We used EAGLE PCB to design the board.

Download a schematic
The Arduino Pro Mini board schematic can be found on the Arduino website.
Our final Paperduino 2.0 EAGLE files can be found here.

Adapting the board for paper
In order to make the schematic paper-friendly, we replaced the blocks of pin headers with our own custom round pad. Through-hole components such as the pin headers are difficult to use on flexible surfaces like paper. We added the new pad design to our Electroninks component library. Since the pen plotter only prints lines, but not fill patterns, the pads were composed of overlapping concentric circles. The tool path for plotting will be shown in Step 3.

We also replaced the package for many of the small components with the 1206 package (meaning 1.2mm long x 0.6mm wide) so they would be easier to mount later on.

Designing the board layout
In the board layout, we set the top layer line width to 0.6 mm to match the width of the pen trace.

We designed the board layout so the Paperduino could be printed on one layer. In many cases, the surface mount components act as jumpers. It is important to keep components close together to minimize line resistance between them.

In EAGLE PCB, the component pads will not be filled in by the pen plotter when exported as a DXF -- only the outlines will be drawn. To solve this issue, overlay the pads with meandering line features so they will be filled by a raster pattern.

Finally, if any lines require a paper jumper (like our digital pins 1, 2, and 3), they can be created in the bottom layer (blue). After the first layer is printed, paper stickers can be place over the lines and the bottom DXF layer can be used to print over the stickers. We will publish a jumper sticker tutorial in a future Instructable.
tz15 months ago

You won't be able to get the pen until July 2014. You should really say that somewhere near the top since this "instructable" can't be done until then unless you already contributed on kickstarter and got a preview.

The link to actually get a pen is at: www.electroninks.com/shop/

sbouli6 months ago

Hi,

none of your download (in dropbox) are working anymore .. I bought a silhouette portrait just to try to built your paperduino ;)

please provide the eagle and schematics by other means ...

Stéphane

a french circuit scribe baker ;)

Electroninks (author)  sbouli6 months ago
Sorry about that Stephane! We moved from dropbox to Google Drive. We've updated the link, or try directly here: https://drive.google.com/folderview?id=0B93k_zS-W3aQOFo2cVpxV1dZRE0&usp=sharing

Let us know how it goes!
Were can I order the pen
Electroninks (author)  Ibraheem Bokhari7 months ago
You can grab the pen here: http://www.kickstarter.com/projects/electroninks/circuit-scribe-draw-circuits-instantly
MrCruz7 months ago
I'm wondering if there's any way to do double sided circuits.
Electroninks (author)  MrCruz7 months ago
Yep! You could flip the page over (if both side are the same texture). Vias can be made by punching holes and drawing through the hole. Or you could try using a brad, or paperclip. :)
a staple might work too.
tovey r-philp7 months ago
It depends on the staple form.

If the staple is squished flat like copiers do, then yes, it would likely work provided the coating does not prevent contact.

A typical stapler that bends the staple arms into a curve underneath the paper and allows the staple to rock back and forth would likely give you poor contact and cause issues with the project.

Then there's the issue of resistance in the staple material as well.

Certainly an idea to test out.
agis687 months ago
that's a revolution....only imagine the possibilities
msemtd7 months ago
Wonderful! I see it is called Paperduino 2.0 - is it in any way related to Guilherme Martins' Paperduino? (See http://lab.guilhermemartins.net/2009/05/06/paperduino-prints/ )
guibot msemtd7 months ago
This project is so completely amazing!!! The relation I see with my "paperduino" is only the name!!

This Paperduino is so much cooler!! I'm sure I will replicate it, and by the way, I have just backed the conductive pen on kickstarter :D
Electroninks (author)  guibot7 months ago
We called it Paperduino 2.0 to pay homage to Guilherme, since he created the first one! Glad you like it, and thanks for backing us!
rmgb7 months ago
I would definitely suggest the Silhouette pen adapter. It holds pens a lot better than tape.
prakis7 months ago
Circuit Scribe looks like magic for me, and with ink-jet cartridge its a hobby home factory.
destroid757 months ago
this is really awesome but getting an arduino uno seems much cheaper on my side of the world
nwlaurie7 months ago
Excellent project - now all we need is an ink-jet cartridge with conductive ink in it!
SayntCigol7 months ago
I would love to see this pen in the silhouette form factor (so you don't have to tape it up)
Electroninks (author)  SayntCigol7 months ago
How about a 3D printed holder? It's just a cylinder that is hollow. We can post a part for that.. no problem. :)
If only I had a 3D printer... hmmm gonna have to get my tools list prioritized
It looks like Silhouette makes an adapter that works with ball point pens: http://www.silhouetteamerica.com/shop/materials/sketch-pens/item-number/pen-holder-3t
annecost7 months ago
This is brilliant on a number of levels! I am vey excited about the circuit scribe and funded on kickstarter. Great way to teach my kids about circuits. I've been on the fence about getting a Silhouette but your MAcGyver move here shows there's a lot more possibilities with the device. Bravo!
bill20097 months ago
This is wonderful. The use of the Z tape is brilliant. I had been thinking about trying it for mounting smt components on a pcb for quickly trying something out but i wasn't sure it would work. I'll do it for sure now.
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