eInkClaude

Claude Pro/Max usage dashboard on a LilyGo T5 4.7" e-paper display. Shows 5-hour and 7-day utilization with reset countdowns. Standalone — ESP32-S3 fetches data directly over WiFi.

Hardware

• LilyGo T5 4.7" e-Paper S3 (EPD47)

Setup

1. Clone and build:

   git clone <repo>
   cd eInkClaude
   pio run -t upload
   

2. On first boot, the touchscreen setup wizard appears:
   • Select your WiFi network from the scan list
   • Enter WiFi password using on-screen keyboard
   • Enter your Claude OAuth token (see below)
3. Credentials are saved to flash — survives reboots.
4. Hold the side button during boot to re-enter setup.

Getting Your OAuth Token

1. Install Claude Code: npm i -g @anthropic-ai/claude-code
2. Run claude and complete the login flow
3. Your token is saved at ~/.claude/.credentials.json
4. Copy the accessToken value (starts with sk-ant-oat01-)

Display

• 5 HOUR — Rolling 5-hour usage with reset countdown
• 7 DAY — Rolling 7-day usage with reset countdown
• Updates every 5 minutes with partial e-ink refresh