Embedded Systems Claude Skill: RTOS, MCU & Firmware

Name: Embedded Systems Developer AI Skill - Casimir
Brand: KissMySkills
Price: 19 USD
Availability: InStock

Embedded Systems Developer, Casimir AI skill by KissMySkills, cover

Embedded Systems Developer AI Skill - Casimir

Confirm the MCU, RAM/flash budget, and RTOS choice first, treat every ISR as a latency budget, and design OTA updates that survive power loss mid-flash.

$19 this skill one payment yours forever

Claude skill package instant downloadcasimir-cpp-embedded-iot-firmware-developer.skill

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How it works

Ask it something hard.

📎 casimir-cpp-embedded-iot-firmware-developer.skillLOADED ✓

Spec the firmware for a battery sensor node that must survive power loss during an OTA update.

CLAUDE · WITH THIS SKILL Casimir returns: an MCU, RAM and flash budget with the RTOS choice justified → an interrupt design with a latency budget per ISR → a power-fail-safe OTA update scheme → a memory and power consumption plan.

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Questions before you buy? A person answers, usually the same day: hello@kissmyskills.com

// the file itself

Read it before you buy it.

The first lines of the file your AI will read, exactly as delivered. Nothing rewritten for the page.

// the skill your AI runs on

You are Casimir, a Senior C++ and Embedded Systems Firmware Developer working across FreeRTOS, Zephyr, I2C, SPI and LoRaWAN on microcontrollers with kilobytes of RAM. You have been activated to help the user ship firmware that holds its real-time deadlines.

Drop Casimir into Claude and get a Senior C++/Embedded Systems & IoT Firmware Developer who writes code for hardware that has no forgiveness built in: no virtual memory to paper over a leak, no garbage collector to clean up after a missed delete, and a scheduler (or lack of one) that will miss a sensor reading forever if an interrupt handler runs one microsecond too long. Casimir does not write embedded C++ like it's desktop C++ with a smaller compiler target. He writes it to survive the constraints that actually define embedded work: fixed RAM measured in kilobytes, flash that has to hold the whole application forever, real-time deadlines that don't get extensions, and a battery that has to last months on one charge. Casimir covers the full embedded firmware discipline: bare-metal and RTOS-based development (FreeRTOS and Zephyr task scheduling), static and constrained-heap memory management, peripheral interfacing over I2C/SPI/UART/ GPIO/ADC/DAC, interrupt service routine design under hard timing constraints,

SKILL.md · 235 lines · instant download

// what's inside

What's inside this skill

MCU, RAM and flash budget with the RTOS choice justified
Interrupt design with a latency budget for every ISR
OTA update scheme that survives power loss mid-flash
Memory and power consumption plan for the device

Firmware engineers and IoT hardware teams specifying a device before the board is locked.

// two ways to get it

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Library plan

This skill and 2,500+ others, inside your chat

$9/mo cancel anytime, or $59 a year

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// ask your assistant

Or let your AI set up this skill for you.

Go to kissmyskills.com/pages/connector and set up the "Embedded Systems Developer AI Skill - Casimir" skill (handle: casimir-c-embedded-systems-iot-firmware-developer-ai-skill) for me

Paste it into Claude, ChatGPT, Claude Code, Cursor or Codex. Your AI walks you through connecting KissMySkills (about 3 minutes, 7-day free trial) and loads the skill. What your AI will read →

What you're actually buying

State the MCU, RAM/flash budget, and bare-metal-versus-RTOS choice before proposing a fix.

Casimir is a Senior C++/Embedded Systems & IoT Firmware Developer skill for hardware with no forgiveness built in: no virtual memory, no garbage collector, and a scheduler that will miss a sensor reading forever if an interrupt handler runs one microsecond too long. He covers bare-metal and RTOS-based design (FreeRTOS/Zephyr), memory management without a forgiving heap, peripheral interfacing (I2C/SPI/UART/GPIO/ADC/DAC), interrupt service routine design, DMA-driven data transfer, power management for battery-powered IoT devices, OTA update and bootloader design, embedded debugging, and IoT communication protocols (MQTT, BLE, LoRaWAN).

Who it's for

embedded firmware engineers building battery-powered IoT devices or resource-constrained microcontroller firmware.

Key capabilities

Confirms the MCU family, flash/RAM budget, clock speed, and RTOS choice before writing a line, since a fix that fits one target can break another.
Treats every ISR as a latency budget: captures the minimum data needed and defers parsing or blocking calls to task or main-loop context.
Defaults to static allocation and object pools, treating a heap as a deliberate choice with a stated fragmentation analysis, not a default.
Maps current draw, wake source, and wake latency for every sleep depth before calling anything "low power."
Designs OTA and bootloader rollback logic with an explicit answer to "what happens if power is lost mid-flash."

How to use it

Paste Casimir's SKILL.md into your Claude Project Instructions (or any AI system prompt), then describe your c++/embedded systems & iot firmware developer problem. Works with Claude, ChatGPT, and any AI chat. Under 2 minutes to install.

// how to install Under 2 minutes

Four steps. Any AI chat.

01
Download the file
After checkout, the download link lands in your inbox. Save the .skill file: Claude takes it as it is.
02
Open your AI chat
Any AI chat you already use: Claude, ChatGPT, Gemini, Grok, Copilot or another.
03
Add it to your AI
Claude: Settings → Capabilities → Skills, upload the .skill file. ChatGPT, Gemini and others: open the .skill file like a .zip archive and paste SKILL.md into custom instructions or Project instructions.
04
Start working
Your AI is now configured as a specialist. Ask it anything inside its domain.

No technical knowledge required.

With Library there is nothing to download. Connect your AI once, then just ask: "Load Embedded Systems Developer AI Skill from KissMySkills."

Setup guide → Library · $9/mo →

// faq

Questions about this product

What AI tools does this work with?+

Any AI chat that accepts custom instructions - Claude, ChatGPT, Gemini, and others. Paste the SKILL.md content into your project instructions or system prompt.

How do I install it?+

Download the file, paste its full contents into your AI's custom instructions, project instructions, or system prompt field. Takes under 2 minutes.

Is this a course or a tool?+

It's a tool - a structured expert persona and workflow, not a video course. You use it immediately by pasting it into your AI chat.

What's the first question Casimir asks before proposing any firmware fix?+

The MCU family and part number, flash/RAM budget, clock speed, and whether the project is bare-metal or running FreeRTOS/Zephyr - a fix that's correct on an nRF52 with 256KB flash can be wrong on an STM8 with 8KB.