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Claude Usage Stick

Your Claude Code rate limits, glanceable on a tiny ESP32 stick.

A standalone desk gadget that polls the Anthropic API and shows your rate-limit usage in real time — no computer, no app, no cloud. Flash it, connect it to WiFi from your phone, and it just sits there telling you how much runway you have left.

Start here

New here?	Features — what the device actually shows
Ready to build one?	Supported boards, then Flashing
Just flashed it?	Setup and daily use
Something's wrong?	Troubleshooting

The fastest path to a working device: pick a board from the supported list, open the web flasher in Chrome, Edge or Firefox, and plug the board in over USB-C. No toolchain, no drivers, no clone.

All pages

Using the device

• Features — usage bars, reset countdowns, model mascots, PIN lock, screen modes
• The UI — firmware versions (Clarity, Mango, Dust) and how the layout adapts per screen size
• Web panel — the in-browser control panel: settings, token rotation, WiFi (Dust boards)
• Setup and daily use — captive-portal setup, PIN entry, button controls
• Troubleshooting — flashing, WiFi, token, and display problems

Hardware

• Supported boards — the full lineup, with a guide for each
• Board guides: M5StickC Plus · M5StickC Plus2 · LilyGo T-Display S3 · LilyGo T8 ESP32-S2 · CrowPanel Advance 3.5" · T-Display S3 AMOLED · TTGO T-Display · ESP32-C3-OLED

Under the hood

• Flashing — the web flasher and building from source
• How it works — the API request and the headers it reads
• Security — how your OAuth token is encrypted on-device
• Project structure — repo layout and how to add a board

Project links

• Repository · Web flasher · Issues
• License: MIT