The latest articles on DEV Community by Manuel Quaglio Marsura (@marsutech). https://dev.to/marsutech https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4123365%2F84ad23d9-3395-433c-b0b0-8ba9883b538a.jpg https://dev.to/marsutech en Manuel Quaglio Marsura Sun, 13 Sep 2026 18:30:10 +0000 https://dev.to/marsutech/i-built-pimonitor-v21-a-raspberry-pi-monitoring-dashboard-with-node-red-and-flowfuse-5kp https://dev.to/marsutech/i-built-pimonitor-v21-a-raspberry-pi-monitoring-dashboard-with-node-red-and-flowfuse-5kp <p>I’ve been working on PiMonitor, a Raspberry Pi monitoring dashboard built with Node-RED and FlowFuse Dashboard 2.0.</p> <p>The goal was simple: have one clean place to check the health of my Raspberry Pi without relying on an external monitoring service.</p> <p>PiMonitor v2.1 currently shows:</p> <ul> <li>CPU usage</li> <li>RAM usage</li> <li>CPU temperature</li> <li>Host disk usage</li> <li>Uptime</li> <li>1 / 5 / 15 minute load averages</li> <li>Overall system health</li> <li>OK / WARNING / CRITICAL states</li> <li>Rolling 1-hour CPU, RAM and temperature history</li> </ul> <p>I’m running it on a Raspberry Pi 5 with Node-RED inside Docker / Portainer.</p> <p>One of the more interesting parts was getting useful host information while Node-RED is running inside a container. The dashboard also supports optional remote access through Tailscale.</p> <p>I tested the remote setup from a phone over 5G with Wi-Fi disabled, so I can check the Raspberry Pi while I’m away from home without exposing Node-RED directly to the public Internet, and I'm using it to monitor my DIY 200W solar panel connected to the Victron Energy Smart Solar Charger and a 100Ah gel battery.</p> <p>The current version uses FlowFuse Dashboard 2.0 rather than the deprecated legacy Node-RED Dashboard.</p> <p>Tested with:</p> <ul> <li>Raspberry Pi 5</li> <li>Node-RED 5.0.7</li> <li>Node.js 24.20.0</li> <li>FlowFuse Dashboard 1.31.0</li> <li>Docker / Portainer</li> </ul> <p>Project page:<br> <a href="https://github.com/marsuramanuel-bit/PiMonitor" rel="noopener noreferrer">https://github.com/marsuramanuel-bit/PiMonitor</a></p> <p>Full packaged release:<br> <a href="https://marsutech.gumroad.com/l/pimonitor" rel="noopener noreferrer">https://marsutech.gumroad.com/l/pimonitor</a></p> <p>I’d be interested in feedback from other Raspberry Pi and Node-RED users, especially on the dashboard layout and which system metrics would be most useful to add next.</p> showdev raspberrypi nodered docker