OpenClaw in Your Hand: Building a Physical AI Terminal - Lech Kalinowski, Callstack
Lech Kalinowski built a physical AI-native terminal that combines an OLED and e-paper display to serve as both a remote control for OpenClaw on an NVIDIA DGX Spark and a text-based RPG gaming device. The system uses an ESP32 microcontroller, a custom backend with a 120B parameter open-source LLM served via TensorRT, and implements a dual-display, static-buffer rendering approach to keep firmware small and efficient. Key technical challenges included power supply regulation, I2C implementation, and encoder noise, and the project has led to a provisional patent for quiet, distraction-free AI terminals.