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Node-Red GUI to Monitor the Raspberry Pi Resources Over the Internet
- Node-Red can monitor system metrics on a Raspberry Pi using GUI and Python scripts, accessible over the internet with ZeroTier VPN.
- Node-Red is a tool for connecting hardware, APIs, and services through a web-based interface, common in IoT projects.
- It uses message passing between nodes to create workflows, with key properties like msg._msgid, msg.payload, and msg.topic.
- Installation involves Node-Red commands on Raspberry Pi and Python scripts for CPU temperature, RAM, and disk usage.
- Node-Red Editor configuration includes 'Inject', 'exec', and 'gauge' nodes with Python script execution for metrics.
- To access the dashboard remotely, ZeroTier VPN can be used for secure connection and monitoring over the internet.
- ZeroTier establishes P2P VPN connections, providing security by authorizing devices and managing network access.
- By following the ZeroTier setup, users can securely view the Node-Red dashboard over the internet, enhancing remote monitoring capabilities.
- Utilizing Node-Red, Python scripts, and ZeroTier VPN offers a practical solution for real-time monitoring and IoT projects.
- The project demonstrates the integration of tools to create a customizable and secure monitoring system tailored for Raspberry Pi resources.
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