[carbocation]

Is this conceptually similar to mixing a Raspberry Pi Zero with a Teensy? Or, to be more abstract and less specifically wrong, it's a general purpose computer that also has microcontrollers (which, for my interest, happen to be similar to those in the Teensy)?

[welsh]

More or less. The AM335x SoC that is inside the OSD335x has a number of smaller, more specialized CPUs in addition to the main Cortex A8 CPU. This allows you to off-load smaller, real-time tasks. There are some other good comments in this thread about using the PRUs.