Axiometa BrodBoost-C is a USB Type-C breadboard power supply with a simple design that powers both rails of a breadboard with voltage adjustable between 3.3V or 5V. It also includes an on/off switch, an LED indicator, and built-in fuse protection.
BrodBoost-C specifications:
- Output voltage – Adjustable: 3.3V or 5V DC
- Maximum current – 1A
- Ports
- USB Type-C connector for power input
- 2x 2×5 2.54 mm breadboard-compatible power and ground rails
- 2x 3-pin 2.54 mm selection headers with 2x jumper caps
- Safety – Short circuit protection
- Input filtering – Ferrite bead for noise suppression and decoupling capacitors
- Misc – Red Power LED, ON/OFF power switch
- Voltage regulation:
- 5.0 V selected by USB CC Pins (5.1 k resistors)
- 3.3 V step-down regulation via AMS1117-3.3
- Dimensions – 54 x 19.5 x 11.4 mm
- Weight – About 20 grams
We’ve written about several breadboard power supplies over the years including the Toaster board with 5 to 16V adjustable voltage, the SwitchTrick switching power supply board, and the MEGO portable breadboard power supply with a built-in battery. We also covered a USB Type-C breadboard power supply last month, namely the XIAO Powerbread supporting 5V and 3.3V power rails, but also integrating a power meter function. The BrodBoost-C has a much simpler design just delivering 3.3V to 5V power to both rails.
The BrodBoost-C is also open-source hardware with the KiCad schematics and PCB layout, Gerbers, and BoM released on the product page where you’ll also find the STEP file for the 3D model.
Axiometa launched its breadboard power supply on Crowd Supply with a $5000 funding goal. You can pledge $32 with free worldwide shipping to get the BrodBoost-C shipped by Jul 11, 2025. It looks a little pricey compared to the XIAO Powerbread going for $19.99 on Seeed Studio, but users need to add a few dollars to get a XIAO ESP32/RP2040 board, and the price does not include shipping. I could also find a cheap USB-C breadboard power supply on AliExpress for about $5 to $6 shipped.
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.
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