Skip to content

boards /rodeo-power-barrel

Render of the Rev-B rodeo-power-barrel at an angle: a black board with a barrel jack and a USB-C receptacle along its front edge, two power inductors, an electrolytic capacitor, a white eight-pin connector and a two-pin auxiliary output.
Rev-B— three-quarter view · CAD render

Daughterboard

rodeo-power-barrel

Built, untested

For builds that need more current than a USB port will give. The barrel jack takes 7–20 V — a 9 V or 12 V adapter in practice — and wins automatically when it is plugged in, while USB stays connected for data and takes over again if the adapter is pulled. A second regulator feeds an auxiliary 5 V output for LED strips, kept off the motherboard’s supply on purpose.

adapter
5.5 × 2.1 mm, centre positive, 7–20 V
switchover
barrel takes priority, USB is the fallback
aux output
separate 5 V rail for LED strips
Built, untested

It came back from JLC with the rest of the run and is on the bench. Bring-up has been done with the USB-C board, so nothing on this one — the barrel jack, the switchover, the auxiliary 5 V — has been powered up or measured yet.

More views

Top and bottom, from the KiCad files

  • Render of the top of the Rev-B rodeo-power-barrel: USB-C and the barrel jack (labelled DC IN 7–20 V, centre positive) along the top edge, the regulators and inductors in the middle, and the eight-pin motherboard connector and AUX 5V 3A MAX output along the bottom.
    Rev-B— top · CAD render
  • Render of the back of the Rev-B rodeo-power-barrel: the words USB-C + BARREL POWER SUPPLY, the revision and licence, and a large RODEO wordmark running off the bottom edge.
    Rev-B— bottom · CAD render

Files

Published with the board

Nothing here sits behind a sign-up. Fork a satellite, respin it, and the host still reads it.

  • .kicad_pro KiCad project Schematic, layout, footprints. link pending the public repo
  • .zip Gerbers Fab-ready, plus drill maps. link pending the public repo
  • .csv BOM + CPL Parts and placements. link pending the public repo
  • src Firmware Where the board has its own. link pending the public repo

The rest of the family

Want in?

Rodeo goes to Kickstarter in January 2027. The waitlist hears first, and day-one backers are planned to get an early-bird price. One email to confirm, then nothing until there is news.

You will get one email asking you to confirm. Nothing else until there is something to say, and unsubscribe from any of it.