MicroPython Projects

Periodic scheduling using timers

There may be applications where every task that needs to be executed is periodic, such as a push button that needs to be sampled every 10 milliseconds; a display that needs to be updated 60 times per second; or a sensor that is sampled at 10 Hz or interrupts when a value has gone out of range. In purely periodic systems, developers can architect their software to use periodic timers to execute tasks. Each timer can be set up to represent a single task that is executed at the desired rate. When the timer interrupt fires, the task executes.

When using periodic timers for task scheduling, it's important to keep in mind that the task code will be executed from an interrupt handler. Developers should follow best ...