Internals === RTOS and the SDK for ESP32 bring up some new screws and bolts. In this document, we will list at least some of them. ##Tasks## Rtos supports a simple form of tasks. These tasks get a priority on start and some other information. | Task | Stack | Priority | | --- | --- | --- | | espruinoTask | 10000 | 5 | ##Interrupt Level## Each realtime OS uses interrupts, and so does RTOS. There are some predefined or reserved for future use. For more info see esp-idf/components/esp32/include/soc/soc.h line 259ff.. In this list we have all interrupts handled for Espruino | Intr num | level | descripton | | --- | --- | --- | | 18 | 1 | GPIO interrupt used for setWatch |