The Raspberry Pi® is a tiny, powerful, inexpensive computer, capable of many tasks. Couple the Pi to industrial, solid-state Opto 22 digital inputs and outputs, and you can build cost-effective solutions for commercial and industrial applications.

This technical note (also a blog post on our website), shows you step-by-step how to set up your Pi to use the free, open-source software tool Node-RED with industrial I/O.

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