Mastodawn

New #HacksterCafe this week, ft. @bunnie : The Dabao microcontroller (powered by Baochip-1x) just wrapped up its @crowdsupply campaign!
This chip helps make secure features easy to build and standardize across the hardware industry. We'll chat about its open "BIO" (Baochip I/O) and package that's easy to inspect via IRIS (infra-red in-situ) imaging, plus other projects bunnie has been working on 👀

March 31, 10:30am PDT / April 1, 1:30am CST:
▶️ https://www.youtube.com/watch?v=dBod87GMk6Y
▶️ https://www.linkedin.com/events/7444453348906471424

bunnie Mar 20

One of my favorite features of the Baochip-1x is the BIO. It's an I/O coprocessor that is based on the PicoRV32, with custom register extensions to allow direct access to GPIOs from the ISA.

Read more about the BIO at this blog post: https://www.bunniestudios.com/blog/2026/bio-the-bao-i-o-coprocessor/ I go in-depth into the architecture and its trade-offs relative to the PIO, and conclude by working through a couple of coding examples.

bunnie Mar 10

I built a microcontroller for high-assurance applications on TSMC 22nm. I call it the "Baochip-1x". Read more about what it is and how it came about at this blog post: https://www.bunniestudios.com/blog/2026/baochip-1x-a-mostly-open-22nm-soc-for-high-assurance-applications/

bunnie Mar 3

Tom Marble Mar 2

Dabao has launched!!!

Open hardware, firmware, software from @bunnie !

https://www.crowdsupply.com/baochip/dabao/updates/our-campaign-has-launched

Our Campaign Has Launched!

Today marks the start of the Dabao campaign. If you're interested in open source hardware, security, or trust, I'm offering you a chance to order some of the first evaluation boards for a mostly-open, security-oriented microcontroller. Dabao is an evaluation board for the Baochip-1x SoC, a microcontroller that raises the bar on inspectable hardware, bringing you a system-on-chip (SoC) that you can check from the silicon all the way to the software.

Crowd Supply

bunnie Dec 30

Interested in the Dabao evaluation board for the Baochip-1x? Sign up here to be notified when they are going on sale: https://www.crowdsupply.com/baochip/dabao

Dabao Evaluation Board for Baochip-1x

A powerful new RISC-V microcontroller with mostly open RTL

Crowd Supply

bunnie Dec 30

If you missed my talk with Xobs at #39c3, the recording is now up: https://media.ccc.de/v/39c3-xous-a-pure-rust-rethink-of-the-embedded-operating-system

Learn about Xous, the pure-Rust OS we've been working on, and the Baochip-1x, a full custom silicon chip that will soon be available, purpose-built to run Xous!

Xous: A Pure-Rust Rethink of the Embedded Operating System

Xous is a message-passing microkernel implemented in pure Rust, targeting secure embedded applications. This talk covers three novel aspe...

media.ccc.de

bunnie Dec 14

I'll be presenting some of my latest work on Xous & Baochip with @Xobs at #39C3 on Day two, 11PM room One:

https://fahrplan.events.ccc.de/congress/2025/fahrplan/event/xous-a-pure-rust-rethink-of-the-embedded-operating-system

Hope to see you there!

For more on Baochip, checkout bluesky: https://bsky.app/profile/baochip.com or read the source at github: https://github.com/baochip/baochip-1x

The TL;DR is that Baochip is a "mostly-open" RTL SoC in 22nm TSMC, purpose-built for Xous and expressly packaged for IRIS inspection. It packs in five RISC-V CPU cores (one Vexriscv CPU at 350MHz, and four PicoRV's at 700MHz), 2MiB on-chip SRAM and 4MiB on-chip RRAM (basically FLASH).

I'm aiming to have the chip broadly available by early 2026. Right now I have first silicon. You can follow development & ask questions on the Baochip discord at https://discord.gg/yesbcPF9Xy

Sorry, no website yet - I suck at marketing - but hey, at least the source code is up!

bunnie Dec 13

Nice! thanks for sharing that! You even got the standard cell area to resolve pretty nicely.

https://social.v.st/users/cibomahto/statuses/115712249480442375

bunnie Dec 13

Matt Mets Dec 13

If you get some electronics from a dude in a sketchy Amsterdam cafe, you might want to inspect it before trusting it- luckily he made that easy to do! Here are some IRIS-style backside IR photos of the Baochip by @bunnie

I used a 60degree, 1064nm power LED from Aliexpress as a light source, and imaged it using an RPi HQ camera with the IR filter removed mounted to our stereo inspection microscope.

bunnie Dec 10

Had the pleasure of speaking with Sera Evcimen for her "Builder's Circle" podcast to talk about open hardware & hardware startups.

Watch our conversation on LinkedIn at https://www.linkedin.com/posts/seraevcimen_hardware-openhardware-innovation-activity-7404157962736340993--38A or listen on Spotify at https://open.spotify.com/episode/7IxX5YhzWjTa5fZS50hMz2?si=59ae9546df1440e4&nd=1&dlsi=2ccd79edad8a4400

Ironically I use neither of those services but then again I live under a rock as far as the modern Internet goes.

#hardware #openhardware #innovation #electricalengineering #deephardware #thebuildercircle #podcast #hardwarestartups | Sera E.

🚨 New Episode Drop! 🚨 I had the absolute honor of hosting bunnie huang; the voice, mind, and rebel spirit behind hacking hardware on The Builder Circle™: The Hardware Startup Success Podcast. 💥 Bunnie has shaped the world of open hardware more than most people realize. From challenging closed ecosystems to building tools that democratize innovation, his work not only changed how products get built… but who gets to build them. In this episode we go deep on: ⚙️ What “open” actually means; beyond buzzwords 🔐 Why openness can become a competitive moat 📦 What companies should reconsider about IP strategy 🛠️ The messy truth of making hardware accessible If you care about hardware, accessibility, or the future of making physical products open, this is the one to listen to. 🎧 Listen here: https://lnkd.in/gMFHrYZY #hardware #openhardware #innovation #electricalengineering #deephardware #thebuildercircle #podcast #hardwarestartups

Github	https://github.com/bunnie
Twitter	@bunniestudios
Blog	https://bunniestudios.com
Bluesky	@bunnie.org
About	https://bunnie.org