ProtothreadsArduino

Protothreads are extremely lightweight stackless threads designed for severely memory constrained systems.

Protothreads provides a blocking context on top of an event-driven system, without the overhead of per-thread stacks. The purpose of protothreads is to implement sequential flow of control without complex state machines or full multi-threading.

Main features:

• No machine specific code - the protothreads library is pure C/C++
• Does not use error-prone functions such as longjmp()
  • It uses Labels as Values
• Very small RAM overhead
• Provides blocking wait without full multi-threading or stack-switching

Based on:

• Protothreads for Arduino
• Protothread.h