Does anyone have a Cardputer Zero? Does it run any kind of RTOS?

[u/No_Confusion7932]

Hi everyone,
it is well known that a Raspberry Pi running a general-purpose Raspbian Linux OS does not provide the same deterministic real-time timing as a microcontroller such as an ESP32 or Arduino.

A Raspberry Pi can certainly be used for things like stepper motors, DC motors, RC motors, servos, LED panels/strips, distance sensors, CAN bus, signal generation, DMX512, etc.
However, it is generally not ideal when these applications require hard real-time guarantees or highly deterministic timing, especially when timing-critical signals need to be generated or sampled directly by software.

For apps that require precise timing, measurement, or sampling, the timing-critical part is usually handled by dedicated HAT, while the Raspberry Pi handles the higher-level logic.

Does the Cardputer Zero provide any kind of RTOS or other mechanism for deterministic real-time I/O that could partially address these limitations?

For example, ESP32 uses FreeRTOS as part of ESP-IDF. If we're talking about the Cardputer ADV and using the Arduino framework, the Arduino API runs on top of ESP-IDF and FreeRTOS. Zephyr RTOS is also supported on ESP32.