From Nisha Kumar:
An overview of the DC503 party badge as seen at DefCon 2018
Hi! My name is Nisha, and I made a party bangle for my friend, Miki, to take with her to DefCon25. It was my first fully-formed electronics project and it posed some interesting challenges due to its unusual form factor. You can read about my experiences with that project here.
Soon after DefCon25, I was approached by r00tkillah to make over a 100 of something similar for the DC503 party at DefCon26. The plan was to combine the power of the BMD-300 SoC by Rigado used in the Wagon Badge from the previous year with my Neopixel bangle form factor. We would call it “The Banglet” and it was going to be awesome.
In passive mode, the banglet’s LEDs light up when detecting nearby Bluetooth devices. The number of LEDs that are lit correspond to the number of BT devices detected and their colors are based on each device’s mac address.
From Cynthia Huang on the Tindie blog:
Tindie has been a favorite platform for creative makers for quite some time now. Hundreds of thousands of hardware craftsmen, hackers, and enthusiasts gather here, share their ideas and create a lot of amazing products.
Three years ago Tindie published an article that used the tools of data science to look at what makes a product successful. It’s been a very popular article, providing insight to the inventors who build their communities of customers through Tindie. With so many new products and sellers since the previous article, we were inspired to dig into the numbers once again to determine if the criteria for selling a successful product on Tindie has changed over the years.
There were so many amazing unofficial badges at DEF CON this year that I can’t possibly cover them all in one shot. I tried to see every badge and speak with every badge maker — like a hardware safari.
via All the Badges of DEF CON 26 (vol 2) — Hackaday
When you have a complex task that would sap the time and energy of your microprocessor, it makes sense to offload it to another piece of hardware. We are all used to this in the form of the graphics chipsets our computers use — specialised processors whose computing power in that specific task easily outshines…
via A Motion Coprocessor Without The Proprietary Layer — Hackaday
Last time on Circuit VR, we looked at creating a very simple common emitter amplifier, but we didn’t talk about how to select the capacitor values, or much about why we wanted them.
via Circuit VR: A Tale Of Two Transistors — Hackaday