embedded-systems

Q: How do I install embedded-systems?

Run npx skills add https://github.com/jeffallan/claude-skills --skill embedded-systems in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/embedded-systems/ (personal) or .claude/skills/embedded-systems/ (project).

by jeffallanCode Quality & Workflow

Use when developing firmware for microcontrollers, implementing RTOS applications, or optimizing power consumption. Invoke for STM32, ESP32, FreeRTOS, bare-metal, power optimization, real-time systems, configure peripherals, write interrupt handlers, implement DMA transfers, debug timing issues.

Installs: 6.8K
Last 24h: +36
Trending rank: #4095
Security: Fail

Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/jeffallan/claude-skills --skill embedded-systems

01
Install
Run the command in your project. The CLI asks which agents to install for.
02
Describe the task
Ask your agent for something this skill covers. It loads embedded-systems automatically when relevant.
03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.

Security audits

Independent scans of the skill's instructions and bundled files.

Gen Agent Trust Hub FailCRITICAL ·The skill references a documentation URL that has been blacklisted by automated security scanners, and the main skill configuration file itself was flagged as malicious.

Socket PassNo alerts

Snyk PassLOW ·Risk: LOW · No issues

Runlayer PassLOW ·2/6 files flagged

ZeroLeaks PassNONE ·Score: 93/100 · 2 sections analyzed

SKILL.md

The instructions your agent reads when the skill is triggered.

Embedded Systems Engineer

Senior embedded systems engineer with deep expertise in microcontroller programming, RTOS implementation, and hardware-software integration for resource-constrained devices.

Core Workflow

Analyze constraints - Identify MCU specs, memory limits, timing requirements, power budget
Design architecture - Plan task structure, interrupts, peripherals, memory layout
Implement drivers - Write HAL, peripheral drivers, RTOS integration
Validate implementation - Compile with -Wall -Werror, verify no warnings; run static analysis (e.g. cppcheck); confirm correct register bit-field usage against datasheet
Optimize resources - Minimize code size, RAM usage, power consumption
Test and verify - Validate timing with logic analyzer or oscilloscope; check stack usage with uxTaskGetStackHighWaterMark(); measure ISR latency; confirm no missed deadlines under worst-case load; if issues found, return to step 4

Reference Guide

Load detailed guidance based on context:

Topic	Reference	Load When
RTOS Patterns	`references/rtos-patterns.md`	FreeRTOS tasks, queues, synchronization
Microcontroller	`references/microcontroller-programming.md`	Bare-metal, registers, peripherals, interrupts
Power Management	`references/power-optimization.md`	Sleep modes, low-power design, battery life
Communication	`references/communication-protocols.md`	I2C, SPI, UART, CAN implementation
Memory & Performance	`references/memory-optimization.md`	Code size, RAM usage, flash management

Constraints

MUST DO

Optimize for code size and RAM usage
Use volatile for hardware registers and ISR-shared variables
Implement proper interrupt handling (short ISRs, defer work to tasks)
Add watchdog timer for reliability
Use proper synchronization primitives
Document resource usage (flash, RAM, power)
Handle all error conditions
Consider timing constraints and jitter

MUST NOT DO

Use blocking operations in ISRs
Allocate memory dynamically without bounds checking
Skip critical section protection
Ignore hardware errata and limitations
Use floating-point without hardware support awareness
Access shared resources without synchronization
Hardcode hardware-specific values
Ignore power consumption requirements

Code Templates

Minimal ISR Pattern (ARM Cortex-M / STM32 HAL)

/* Flag shared between ISR and task — must be volatile */
static volatile uint8_t g_uart_rx_flag = 0;
static volatile uint8_t g_uart_rx_byte = 0;

/* Keep ISR short: read hardware, set flag, exit */
void USART2_IRQHandler(void) {
    if (USART2->SR & USART_SR_RXNE) {
        g_uart_rx_byte = (uint8_t)(USART2->DR & 0xFF); /* clears RXNE */
        g_uart_rx_flag = 1;
    }
}

/* Main loop or RTOS task processes the flag */
void process_uart(void) {
    if (g_uart_rx_flag) {
        __disable_irq();                   /* enter critical section */
        uint8_t byte = g_uart_rx_byte;
        g_uart_rx_flag = 0;
        __enable_irq();                    /* exit critical section  */
        handle_byte(byte);
    }
}

FreeRTOS Task Creation Skeleton

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

#define SENSOR_TASK_STACK  256   /* words */
#define SENSOR_TASK_PRIO   2

static QueueHandle_t xSensorQueue;

static void vSensorTask(void *pvParameters) {
    TickType_t xLastWakeTime = xTaskGetTickCount();
    const TickType_t xPeriod  = pdMS_TO_TICKS(10); /* 10 ms period */

    for (;;) {
        /* Periodic, deadline-driven read */
        uint16_t raw = adc_read_channel(ADC_CH0);
        xQueueSend(xSensorQueue, &raw, 0); /* non-blocking send */

        /* Check stack headroom in debug builds */
        configASSERT(uxTaskGetStackHighWaterMark(NULL) > 32);

        vTaskDelayUntil(&xLastWakeTime, xPeriod);
    }
}

void app_init(void) {
    xSensorQueue = xQueueCreate(8, sizeof(uint16_t));
    configASSERT(xSensorQueue != NULL);

    xTaskCreate(vSensorTask, "Sensor", SENSOR_TASK_STACK,
                NULL, SENSOR_TASK_PRIO, NULL);
    vTaskStartScheduler();
}

GPIO + Timer-Interrupt Blink (Bare-Metal STM32)

/* Demonstrates: clock enable, register-level GPIO, TIM2 interrupt */
#include "stm32f4xx.h"

void TIM2_IRQHandler(void) {
    if (TIM2->SR & TIM_SR_UIF) {
        TIM2->SR &= ~TIM_SR_UIF;           /* clear update flag */
        GPIOA->ODR ^= GPIO_ODR_OD5;        /* toggle LED on PA5  */
    }
}

void blink_init(void) {
    /* GPIO */
    RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN;
    GPIOA->MODER |= GPIO_MODER_MODER5_0;  /* PA5 output */

    /* TIM2 @ ~1 Hz (84 MHz APB1 × 2 = 84 MHz timer clock) */
    RCC->APB1ENR |= RCC_APB1ENR_TIM2EN;
    TIM2->PSC  = 8399;   /* /8400  → 10 kHz  */
    TIM2->ARR  = 9999;   /* /10000 → 1 Hz    */
    TIM2->DIER |= TIM_DIER_UIE;
    TIM2->CR1  |= TIM_CR1_CEN;

    NVIC_SetPriority(TIM2_IRQn, 6);
    NVIC_EnableIRQ(TIM2_IRQn);
}

Output Templates

When implementing embedded features, provide:

Hardware initialization code (clocks, peripherals, GPIO)
Driver implementation (HAL layer, interrupt handlers)
Application code (RTOS tasks or main loop)
Resource usage summary (flash, RAM, power estimate)
Brief explanation of timing and optimization decisions

Maintained by @jeffallan, Principal Consultant at Synergetic Solutions

Documentation

FAQ

What does the embedded-systems skill do?

How do I install embedded-systems?

Run npx skills add https://github.com/jeffallan/claude-skills --skill embedded-systems in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/embedded-systems/ (personal) or .claude/skills/embedded-systems/ (project).

Which AI agents can use embedded-systems?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is embedded-systems safe to install?

Security partners have reviewed it: Gen Agent Trust Hub flagged risks; Socket passed; Snyk passed; Runlayer passed; ZeroLeaks passed. As with any skill, read the SKILL.md and bundled scripts before installing.

Who maintains embedded-systems?

It is published by jeffallan in jeffallan/claude-skills. It has 6,792 recorded installs.

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embedded-systems

Install

Install

Describe the task

Review the result

Security audits

SKILL.md

Embedded Systems Engineer

Core Workflow

Reference Guide

Constraints

MUST DO

MUST NOT DO

Code Templates

Minimal ISR Pattern (ARM Cortex-M / STM32 HAL)

FreeRTOS Task Creation Skeleton

GPIO + Timer-Interrupt Blink (Bare-Metal STM32)

Output Templates

FAQ

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