So I made it my weekend project yesterday, and built the walkLED example in the Nodeuino documentation. It uses 6 LEDs and 2 switches, I only have 4 LEDs and 1 switch that doesn't fit on a breadboard, so I simplified it. Here's a little video showing it working. It pans from the circuit diagram in the nodeuino docs, to the circuit in the Fritzing circuit-diagramming app, to my circuit built on the breadboard, to the terminal showing the node.js app, to the speed being controlled by the potentiometer.
None of this is original yet - it's all from the example circuit and code created by Sebastian Müller (github.com/semu). My task now is to understand that code and build on it. Then I want to build a circuit that reads some public Twitter feed and shows the number of new tweets on a digital LCD display.
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