Freertos

Covers the practical bits of FreeRTOS development: creating tasks with proper stack sizing, using queues and mutexes for inter-task communication, and enabling stack overflow detection before things crash mysteriously at 3am. The examples show actual task function signatures, queue setup with structs, and the difference between semaphores (for signaling) and mutexes (for shared resources with priority inheritance). Configuration guidance is solid, especially the FreeRTOSConfig.h essentials and stack watermark checking. The GDB section assumes you're already running OpenOCD and jumps straight to thread-aware debugging commands. If you're moving from bare metal to an RTOS or debugging why your embedded system locks up under load, this gets you oriented quickly.

skills.sh installs: 691
GitHub stars: 279
last updated: Aug 21, 2026

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Install

$ npx -y skills add mohitmishra786/low-level-dev-skills --skill freertos --agent claude-code

Installs into .claude/skills of the current project.

Files

FreeRTOS

Purpose

Guide agents through FreeRTOS application development: task creation and priorities, inter-task communication with queues and semaphores, stack overflow detection, configASSERT, and FreeRTOS-aware debugging with GDB and OpenOCD.

Triggers

"How do I create a FreeRTOS task?"
"How do I pass data between FreeRTOS tasks?"
"My FreeRTOS task is crashing — how do I detect stack overflow?"
"How do I use FreeRTOS mutexes?"
"How do I debug FreeRTOS tasks with GDB?"
"How do I configure FreeRTOSConfig.h?"

Workflow

1. Task creation and priorities

#include "FreeRTOS.h"
#include "task.h"

// Task function signature
void vMyTask(void *pvParameters) {
    const char *name = (const char *)pvParameters;
    for (;;) {
        // Task body — must never return
        printf("Task %s running\n", name);
        vTaskDelay(pdMS_TO_TICKS(500));  // yield for 500ms
    }
}

SKILL.md on GitHub