I used my time during a hackathon at work as an excuse for a first foray into playing around with a Spark core. I had some old IKEA dioder led lights hanging around, which run off 12VDC so I repurposed those for the actual lights. Source code here: https://github.com/moonshot/spark-traffic-light …

Jenkins build system traffic light

Rockvole March 15, 2015, 1:57pm 2

You can try something like this as a bridge :

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