[hberg]

The title of this post is misleading. A few paragraphs in he writes: "I quickly began to write Arduino code to simulate a failing BBU. I also wrote some code that acted as a DAC to take in the signals from the BBU."

Should really be titled "How I won a Facebook hardware hackathon"

[mrandrewandrade]

The final demo didn't include any code. Writing the code for the arduino was a waste of time in terms of what we actually build. The main part of the post was about the pivot and how we won with a simplified codeless solution

[PeterWhittaker]

Why is this being downvoted? It is clear, brief, on topic, and provides key information to clarify any confusion as to the headline.

[lowpro]

Keep reading, it says just below that they got rid of that design.