Tokenmeter
A small desk display that shows your AI coding tool usage. Tracks Claude Code, OpenAI Codex, and Cursor, each with its own pixel-art splash and usage screen. Connects over Bluetooth to a host daemon that polls the APIs.
Tokenmeter runs on Waveshare ESP32-S3 AMOLED boards (2.16" and 1.8" variants) with a multi-board HAL so one firmware codebase supports different hardware. The pixel-art animations get busier as your usage rate climbs.
The host daemon (macOS/Linux) reads Claude API usage, Codex rate limits from local session logs, and Cursor usage from its dashboard API, then sends everything over a single BLE GATT connection. Side buttons double as BLE HID keys for Claude Code voice mode.
Built with embedded C++, LVGL, NimBLE, and custom QSPI display drivers.
Details
Solo · Hardware + firmware · 2026 - ongoing