# M5Stack StopWatch Dev Kit A flashed M5Stack StopWatch responds to motion, touch and button presses with an animated on-screen companion, without needing a model API at runtime. The motion-sensitive pet firmware runs locally on the badge, without an AI API at runtime. Model: M5Stack StopWatch Dev Kit (ESP32-S3) Maker: M5Stack Category: displays Display type: pixel-status Collections: None Evidence: Source-reviewed creator project (not independent hands-on testing) Sources reviewed: 2026-11-04 Added to directory: 2026-11-04 Development route: Firmware and filesystem flashing Setup: Tinkering required ## Overview A flashed M5Stack StopWatch responds to motion, touch and button presses with an animated on-screen companion, without needing a model API at runtime. The motion-sensitive pet firmware runs locally on the badge, without an AI API at runtime. Best for: Badge, display, touch, IMU and haptics. A pet that lives on a motion-sensitive badge. Not for: A guaranteed plug-and-play recreation without the listed hardware revisions, accessories and software setup. Where code runs: The motion-sensitive pet firmware runs locally on the badge, without an AI API at runtime. ## Editorial popularity estimate 40/100. This is a subjective editorial estimate, NOT measured sales, traffic, quality, testing or customer reviews. Conservative provisional ranking for a source-reviewed addition, not measured demand or product quality. Inputs on a 1–5 scale: ecosystem 2 (50%), tutorial visibility 2 (30%), retail familiarity 2 (20%). Assessed 2026-11-04. ## Project ideas - A pet that lives on a motion-sensitive badge ## What you need - M5Stack StopWatch Dev Kit - Required: USB-C data cable. A charge-only cable cannot flash firmware. Example requires a USB-A host port. If your computer has only USB-C, use an appropriate USB-C data cable instead. Reuse the device’s included cable where possible; this is not a standalone power-supply recommendation. - Tool: Computer with VS Code and PlatformIO. ## Compatibility and cautions - Firmware and filesystem flashing required; runs locally without an AI API. TAVI derives from this project and is held rather than double-counted. - Source-reviewed, not independently hardware-tested. Confirm the model, revision and recovery process before changing device software. ## Buy [Search Amazon (unverified)](https://www.amazon.com/s?k=M5Stack+StopWatch+Dev+Kit) — Search destination only; matching listing NOT verified Search fallback only. No Amazon listing, stock, price or exact revision has been verified for this entry. Prefer the linked manufacturer or hardware source and check your region. [View hardware source](https://shop.m5stack.com/products/m5stack-stopwatch-dev-kit-esp32-s3) Product page. Stock and delivery region are not confirmed. Check exact model and bundle contents with the seller. Affiliate link: no ## Creator projects and demos (source-reviewed; not independently hardware-tested) ## Setup and technical references - [A pet that lives on a motion-sensitive badge](https://youcanjustbuildthings.openai.chatgpt.site/projects/submission-15b148cc94a3ce050e840a5302e1824396ae5cb2892d9e60ce04a435f8fb5070) — naveenmanwani17 · build photo; Build story - [A pet that lives on a motion-sensitive badge — supporting source](https://x.com/i/status/2113694547071111411) — naveenmanwani17 · build photo; Project reference - [M5Stack StopWatch Dev Kit — Product page](https://shop.m5stack.com/products/m5stack-stopwatch-dev-kit-esp32-s3) — M5Stack; Product page ## Planning notes (not a replacement for the original technical instructions) 1. **Check your model and revision**: 2. **Read the creator’s setup**: Firmware and filesystem flashing required; runs locally without an AI API. TAVI derives from this project and is held rather than double-counted. 3. **Start with a reversible test**: Follow the linked project source before changing the device. Back up existing configuration, keep credentials private and stop if your hardware differs from the documented version. ## Coding-agent project brief Help me plan a pet that lives on a motion-sensitive badge using M5Stack StopWatch Dev Kit. Read https://youcanjustbuildthings.openai.chatgpt.site/projects/submission-15b148cc94a3ce050e840a5302e1824396ae5cb2892d9e60ce04a435f8fb5070 and its supporting sources first. The motion-sensitive pet firmware runs locally on the badge, without an AI API at runtime. Firmware and filesystem flashing required; runs locally without an AI API. TAVI derives from this project and is held rather than double-counted. Confirm my exact hardware and required accessories, explain what is missing, and propose one reversible test. Ask before flashing firmware, changing privileged system settings or moving physical hardware. ## Common questions ### Where does my software run? The motion-sensitive pet firmware runs locally on the badge, without an AI API at runtime. ### What should I check before buying? Product page. Stock and delivery region are not confirmed. Check exact model and bundle contents with the seller. ### What are the setup risks? Firmware and filesystem flashing required; runs locally without an AI API. TAVI derives from this project and is held rather than double-counted.