Chapter 2

1. What characteristics define a real-time embedded system?
   • They are event driven and do not poll inputs.
   • They are deterministic; given the same initial conditions, they produce the same outputs in the same time frame.
   • They are often resource constrained in some manner, such as the following:
     • Clock speed
     • Memory
     • Energy consumption
   • The use of a dedicated microcontroller-based processor.
   • May have a RTOS to manage system tasks.
2. What four scheduling algorithms are commonly used with MicroPython?
   • Round robin scheduling
   • Periodic scheduling using timers
   • Cooperative scheduling
   • MicroPython threads

3. What best practices should a developer follow when using callbacks in MicroPython?
   • Keep interrupt service routines (ISRs) short and fast.
   • Perform measurements to understand interrupt timing and latency.
   • Use interrupt priority settings to emulate preemption.
   • Make sure task variables...