uFerris
A Versatile Learner Board for Rust Embedded Beginners
🦀 In stock. Shipping worldwide.
🔓 100% open source hardware & software — Hardware repo · BSP crate
🎁 Bundle deal — order both boards with Simplified Embedded Rust & get 20% off
"Software comes from heaven when you have good hardware.”- Ken Olsen
Why uFerris?
Learning embedded Rust shouldn't mean fighting your hardware. Every tutorial picks a different board, a different MCU, a different toolchain — so half the battle is just making the example compile on the silicon you happen to own.
uFerris is one reference platform that works across multiple MCUs. Swap the brain on top, keep the peripherals underneath. Focus on Rust, not on rewiring your dev setup.
One board, many MCUs — Seeed XIAO header accepts ESP32-C3 / C6 / S3, RP2040, RP2350, nRF52840, SAMD21, RA4M1, and more
Every standard peripheral on board — GPIO, timers/counters, ADC, PWM, UART, I²C, SPI — no breadboard required
Build a complete embedded product replica — sensors, actuators, display, storage, battery
A single reference for the Embedded Rust ecosystem — book, examples, and BSP crate all target this hardware
Fully open source — schematics, board files, and the BSP crate are all public. Fork it, modify it, learn from it, contribute to it.
What’s in the Family
uFerris Megalops Baseboard - $24.99
The standalone learner board. Onboard components cover every standard peripheral you’ll meet in embedded development. Drop in a Seeed XIAO module to pick your MCU and start coding.
uFerris Megalops Power Extension Board - $14.99
Cuts the USB cord. 2×AAA battery holder, onboard current-measurement circuit (so you can see exactly how much your firmware sips), and a microSD slot for SPI exercises and data logging. Stacks directly onto the Megalops Baseboard.
Built for Learning
uFerris is fully integrated as the hands-on companion for the Simplified Embedded Rust series. Both the and the . Every chapter, every example, every project, designed to work on uFerris.
Specifications
uFerris Megalops Baseboard
MCU
User-supplied via Seeed XIAO 14-pin header
Compatible XIAO modules
ESP32-C3, ESP32-C6, ESP32-S3, RP2040, RP2350, SAMD21, nRF52840, RA4M1 (any Seeed XIAO-pinout module)
Operating voltage
3.3 V
Power input
USB-C (via XIAO) or Power Extension Board
Headers & Connectors
1x SWD Debug 6-pin Header,
1x Qwiic Connector,
1x Xiao Compatible Header,
2x Board Expansion Headers,
1x Coin Cell Battery Holder
Onboard Components
3x LEDs,
5x Push buttons,
1x LDR,
1x Buzzer,
1x RTC,
1x I/O Expander
2x Slide Switches,
1× 7-segment Display (4-digit)
uFerris Megalops Power Extension Board
Battery
2× AAA, Regulated to 5 V
Headers & Connectors
2x Board Expansion Headers,
1x microSD Card Holder
1x AAA Battery Holder
Storage
microSD slot (SPI)
Onboard Components
1x Power Measurement Circuit
Order Now
In stock and shipping worldwide. Bundle both boards with Simplified Embedded Rust and get 20% off.
Open Source & Documentation
uFerris is open source, top to bottom. The hardware design, the firmware, and the supporting Rust crates are all public. You can study them, learn from them, fork them, or contribute back.
Hardware Repository: schematics, board files, BOM, and gerbers.
Board Support Package (BSP) Repository: board support crate source code, board coverage, and example code. Issues, pull requests, and discussions are welcome on all repos.
For Press & Reviewers
Working on a piece to review uFerris? We’re happy to provide review units, a press kit, and technical Q&A. uFerris is fully open source. Schematics, board files, and the Rust BSP are all public, so you’re welcome to dig in before pitching.
Contact: [email protected]
