I kept hitting my Claude limits without noticing, so I built a desk gadget to fix that

Every time I hit a Claude usage limit it caught me off guard. It is an ESP32-C3 in a 3D printed enclosure with a small OLED on the front. It polls the Anthropic API headers every minute and shows: Current session usage (the rolling 5-hour window) with a countdown to reset Weekly usage across all models Weekly Sonnet and Opus usage separately Vibe coded with Claude, reviewed and cleaned up by me. ESP32 is still fairly new territory so the code is not perfect. Model on MakerWorld: makerworld.com/en/mo