Store Arduino Sensor Network Data in an SQL Database
If you need to store long-term historical data, you can cobble together some Arduino modules, sensors, and displays and get them all to talk to an SQL server.
OpenWrt on a Pi
Light open source router firmware breathes new life into your old Raspberry Pi.
Add Animated Drawings to Your IoT Dashboards
Use an SVG graphic widget on your next Node-RED project to get a visual representation of your automation setup.
Run Python on Old Arduino Modules
Reuse your old Arduino hardware while learning Python.
Control USB-Powered Devices with a Raspberry Pi
Command-line tools and Node-RED on a Raspberry Pi let you control projects that use the USB ports.