Node-Red – A visual tool for wiring the Internet of Things

As we continue to puzzle out all the different approaches to create an IoT application something that caught our eye was Node-Red. It’s billed as a visual tool for wiring the Internet of Things. The home page says this:

Node-RED is a tool for wiring together hardware devices, APIs and online services in new and interesting ways.

The intro video shows a pretty snazzy GUI for wiring elements together:

This article shows how to tie your hardware into the Node-Red mix.

Now the question is what is the best way to run a node.js server?

Node-Red Homepage

Easiest 3D Viewer for EAGLE PCB boards we’ve ever seen!

Alvie pointed us to this amazing new website that lets you drag and drop an EAGLE board file and view it in 3D. While there are other sites that have been around for a while do the same thing, this is the first site that lets you edit the components on the board with ease. We were able to make a fully populated 3D view in a matter of minutes with this tool! It usually takes over half an hour to do the same thing with the other tools we use. This is great if you want to show off your board or make a very clear view of your board for your board manufacturer’s.

Thanks for the great tip Alvie!

Check it out for yourself – Website Link.

Gates to FPGAs: TTL Electrical Properties

Great reference from Bil Herd about TTL Electrical properties.

On the path to exploring complex logic, let’s discuss the electrical properties that digital logic signals are comprised of. While there are many types of digital signals, here we are talking about the more common voltage based single-ended signals and not the dual-conductor based differential signals.