Clawdmeter Turns $30 ESP32-S3 Board Into 2.16-Inch Claude Token Monitor

5 articles · Updated · CNX Software · May 14

Clawdmeter uses a Waveshare ESP32-S3-Touch-AMOLED-2.16 board to show Claude Code token usage live on a 480 x 480 AMOLED desk display, helping users track limits before they hit them.
Bluetooth LE links the device to a laptop, while pixel-art animations speed up as usage rises and two side buttons act as BLE HID shortcuts for voice mode and mode switching.
C firmware built with PlatformIO uses LVGL for the interface and NimBLE for connectivity, with constants instead of fixed coordinates that should make ports to other ESP32 displays easier.
The off-the-shelf hardware costs about $30 on AliExpress, $40.99 on Amazon, and also supports ESP-IDF and Arduino, though similar monitoring could also be done with host-side taskbar apps or USB displays.

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