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DouglasMartin
DouglasMartin
April 20, 2026

Anthropic engineer Felix Rieseberg unveils Claude Buddy, an open-source hardware device that serves as a physical companion for the Claude Code AI tool. The palm-sized gadget, built on an ESP32 board, syncs via Bluetooth to display Claude's status via pixel art pets and uses LED alerts with a button for quick user approvals, streamlining developer workflows. Its design features 18 ASCII animal forms and a dual-layer personality system. The project's core hardware, the M5StickC Plus, is produced by Shenzhen-based M5Stack, highlighting the city's role in global AI and IoT hardware.

Anthropic engineer Felix Rieseberg unveils Claude Buddy, an open-source hardware device that serves as a physical companion for the Claude Code AI tool. The palm-sized gadget, built on an ESP32 board, syncs via Bluetooth to display Claude's status via pixel art pets and uses LED alerts with a button for quick user approvals, streamlining developer workflows. Its design features 18 ASCII animal forms and a dual-layer personality system. The project's core hardware, the M5StickC Plus, is produced by Shenzhen-based M5Stack, highlighting the city's role in global AI and IoT hardware.
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