What MicroTaskX Is
MicroTaskX is an ultra-lightweight, high-performance micro-RTOS and multitasking framework designed for Arduino (AVR & ESP32). It maximizes CPU efficiency by eliminating blocking delays, introducing independent macro-based timers, background task scheduling with dynamic controls, and real-time CPU load profiling.
Core Features
Zero-Overlap Modular Architecture
Separates the core scheduling kernel (MTXKernel) from hardware utilities (MTXUtils) to minimize memory consumption. Each module compiles only what it needs.
Dynamic Compile-Time Configuration
C++ templates let you customize maximum task bounds (MicroTaskXKernel<MAX_TASKS>) at compile time — zero runtime overhead for task allocation.
Runtime Task Management
Built-in APIs to pause, resume, and modify task intervals dynamically during execution. One-shot tasks execute exactly once before auto-deactivating.
Independent Macro Timers
MTX_EVERY token-pasting macros create non-blocking intervals on any line of code — no callback registration, no object allocation.
Real-Time CPU Profiling
Monitor actual CPU load percentage dynamically via free idle-loop calculation. Know exactly how much headroom your firmware has.
Smart Sleep Integration
Automatic power management mapped to the next scheduled task. Idle Sleep on AVR, precise Light Sleep on ESP32 — power savings without timing drift.
Direct Port Manipulation
toggleFast<PIN>() template routine executes in a single clock cycle on AVR microcontrollers — no digitalWrite overhead.
Tech Stack
- Language: C++11/C++17
- Platforms: Arduino AVR (ATmega328P+), ESP32
- Scheduling: Compile-time configured kernel with runtime control
- Power: Automatic idle/light sleep mapped to task timing
- Profiling: Real-time CPU load via idle-loop measurement
- License: MIT