Build Choices

Pay attention! There are several different hardware variants, each requiring a different firmware binary, indicated in the filename:

• T32 - for standard O_C hardware with Teensy 3.2
• T32+VOR - for Plum Audio 1uO_C / OCP / OCP X hardware with Variable Output Range (VOR)
• T40 - for standard O_C hardware with Teensy 4.0 (or 4.1, uncommon)
• NLM+cardOC - for the Northern Light Modular Easel card module with Teensy 4.0
• T41 - for all new O_CT4.1 aka ORN8 hardware with 8-channel I/O

Release builds typically include Hemispheres + all the Applets, and a variety of other Apps (check the release notes for details)

Roll your own! Generate a custom O_C firmware for Teensy 3.2 with your choice of Apps! (Read and leave a comment on the Discussion, and a robot will build it for you.)

Teensy 4.0 releases for O_C hardware include almost all of the available Apps.

Teensy 4.1 releases for ORN8 hardware have a multi-boot system, with Quadrants and the new Audio DSP subsystem in the primary slots. All legacy Apps are still available in a secondary boot slot. Hold ‘Z’ on startup for the Boot Menu.

VOR

Files with “+VOR” are only for Plum Audio / 4ROBOTS hardware variants equipped with a Variable Output Range circuit - O&C Plus, 1uO_c, & OCP X. These modules can also use the standard T32 firmware if VOR is disabled via the jumper (set to ‘NV’).

Other standard 8HP uO_C, After Later uO_C 1U, or full-size 14HP O_C modules should be installed without VOR - your outputs will behave strangely otherwise!

Flipped Operation

As of v1.8.3, flipping the screen/controls is a calibration option. No need for a special “_flipped” build!

In Setup/About, you’ll see two arrows in the title bar. Up/Down indicates screen flip; Left/Right indicates controls & IO reversal. If you need to change either, dual-press the UP+DOWN buttons to cycle through. Return to main menu and it will save; power cycle to take effect.