NOTE:

I have now built all of the boards I had fabricated. So once these run out, there will be no more. Thanks to everyone for making this project a success!

It's SAW: The Badge, the indie electronic badge that I created for DEFCON 27 (2019). This badge features everybody's favorite bowtie-wearing, tricycle-riding, microcassette-delivering puppet messenger of doom, Billy!

If you didn't know his name was Billy, you're not alone. But it really is. Many people call him Jigsaw, and frankly he's sick of it! So he wears his own electronic badge to remind people of his correct name. :)

This badge is really about the blinky, but with the idea that the lighting makes sense for the artwork rather than just throwing a bunch of LEDs down. There are 44 red LEDs in his cheek spirals that randomly cycle through a number of interesting animations. Meanwhile, his eyes are back-lit (red, or course) and continuously throb slowly. His bowtie and handkerchief are lit as well and are usually shown with color shades that are complementary, because Billy's obviously got style. A mode button on the back cycles through various lighting modes, and includes a test mode to confirm that all of the LEDs are working correctly.

While all that's happening, Billy's OLED name tag is reminding everyone of his real name... and maybe occasionally a few of his favorite Jigsaw taglines.

The badge also includes one SAO (shitty add-on) header (v1.69) to support your favorite SAOs. Billy comes with his favorite add-on - a little "Play Me" microcassette replica like the ones he often delivers in the films. When connected to Billy, the tape SAO will occasionally show animations to simulate tape movement. Put it on any other badge, and the tape back light will come on, but the tape won't "move". Top Secret puppet security stuff...

Billy has several random behaviors that you may notice over time...

The badge is controlled by a custom processor module that I also built (a modified version of the excellent HCC module by @idlehandsdev). It features a SAMD21 32-bit microprocessor and is Arduino Zero compatible. It's all powered by a 3.7v LiPo battery (included), with an on-badge charging circuit to charge the battery automatically whenever a power source is connected to the USB (micro B) connector. Can be a laptop, desktop, powered hub, wall adapter, etc. (none of those are included!)

I sold a bunch of these at DEFCON 27; this is the remaining stock I had, plus the last few I built with remaining components. I do not expect to build more in the future. All badges are fully assembled by me, with human pick-and-place and hot air reflow soldering (plus a few manually soldered through-hole parts).

The badge package includes:

• SAW: The Badge
• One "Play Me" SAO
• 400mAh 3.7v LiPo battery
• Lanyard
• Read Me leaflet with instructions and tips
• One SAW: The Badge sticker