A technical blog about Robotics, Embedded Systems, and AI.https://rylanpeng.github.io/rylanpeng.dev/ Rylan Penghttps://github.com/rylanpeng/rylanpeng.deven Wed, 15 Apr 2026 07:19:40 -0000 Wed, 15 Apr 2026 07:19:40 -0000 1440 MkDocs RSS plugin - v1.18.1 None https://rylanpeng.github.io/rylanpeng.dev/ <h1>Talk to SSD1306 using SPI on Jetson Orin Nano</h1> <p>Driving a small OLED display over SPI from the Jetson Orin Nano's 40-pin header. This covers hardware wiring, device-tree overlay configuration, and a Python test script.</p> https://rylanpeng.github.io/rylanpeng.dev/5-ssd1306-spi/ Mon, 13 Apr 2026 00:00:00 +0000 rylanpeng.devhttps://rylanpeng.github.io/rylanpeng.dev/5-ssd1306-spi/ <h1>Bipedal Robot RL Simulation on Jetson Orin Nano</h1> <p>Training a two-legged robot to walk using PPO and the Genesis physics simulator, running entirely on the Jetson Orin Nano.</p> https://rylanpeng.github.io/rylanpeng.dev/4-genesis-rl/ Sat, 11 Apr 2026 00:00:00 +0000 rylanpeng.devhttps://rylanpeng.github.io/rylanpeng.dev/4-genesis-rl/ <h1>PyTorch Setup on Jetson Orin Nano</h1> <p>The Jetson Orin Nano uses an ARM64 integrated GPU (nvgpu) with a custom L4T CUDA stack, so standard PyPI <code>torch</code> wheels won't work. This post walks through getting PyTorch running with proper GPU support.</p> https://rylanpeng.github.io/rylanpeng.dev/3-pytorch/ Sun, 05 Apr 2026 00:00:00 +0000 rylanpeng.devhttps://rylanpeng.github.io/rylanpeng.dev/3-pytorch/ <h1>What is initrd?</h1> <p>If you have ever peeked at <code>/boot/extlinux/extlinux.conf</code>, you probably noticed a line called <code>INITRD</code>. Have you ever wondered what this thing is, what it does, and why we need it?</p> https://rylanpeng.github.io/rylanpeng.dev/1-what-is-initrd/ Thu, 02 Apr 2026 00:00:00 +0000 rylanpeng.devhttps://rylanpeng.github.io/rylanpeng.dev/1-what-is-initrd/ <h1>Enable PREEMPT_RT</h1> <p>This guide covers how to enable <strong>PREEMPT_RT</strong> on the Jetson Orin Nano, transforming it into a real-time operating system (RTOS) ready for low-latency robotics applications.</p> https://rylanpeng.github.io/rylanpeng.dev/2-enable-preempt-rt/ Sun, 22 Mar 2026 00:00:00 +0000 rylanpeng.devhttps://rylanpeng.github.io/rylanpeng.dev/2-enable-preempt-rt/ <h1>Latest Posts</h1> <p>Welcome to my technical blog. Here I document my journey through Robotics, AI, and Embedded Systems.</p> https://rylanpeng.github.io/rylanpeng.dev/ Fri, 20 Mar 2026 00:00:00 +0000 rylanpeng.devhttps://rylanpeng.github.io/rylanpeng.dev/ <h1>About</h1> <p>Welcome to my technical blog! I'm Rylan Peng, a developer interested in Robotics, Embedded Systems, and AI.</p> <p>This blog is a place where I share my d...</p> https://rylanpeng.github.io/rylanpeng.dev/about/ Fri, 20 Mar 2026 00:00:00 +0000 rylanpeng.devhttps://rylanpeng.github.io/rylanpeng.dev/about/ <h1>Get Ready!</h1> <p>To start the Jetson Orin Nano journey, the first step is to figure out where to grab the source code and which build tools are needed.</p> https://rylanpeng.github.io/rylanpeng.dev/1-get-ready/ Thu, 19 Mar 2026 00:00:00 +0000 rylanpeng.devhttps://rylanpeng.github.io/rylanpeng.dev/1-get-ready/