Fully Offline Suitcase Robot Built on Jetson Orin NX + Gemma 4 E4B — 200ms Cached TTFT, 30+ Sensors, No WiFi
r/LocalLLaMA·medium signal
A builder showcased 'Sparky,' a fully offline suitcase robot running Gemma 4 E4B at Q4_K_M via llama.cpp on a Jetson Orin NX SUPER 16GB. It achieves ~200ms cached TTFT with flash attention, q8_0 KV cache, 12K context, and no WiFi/BT/cellular connectivity. With 30+ sensors and native system role, it demonstrates that local LLMs can now power real-time physical robots entirely on-device. 620 upvotes, 90 comments.