We’ve already seen that it is possible to drive thousands of WS2812B NeoPixels with a lowly Arduino using careful bit-banging. But what if we could bang out 8 bits at a time rather than sending them single file? Could it be possible to drive 8 times as many strings (or get 8 times the refresh rate) from our Arduino by processing bits in parallel? It would be like having a tiny pipelined GPU render engine inside our Arduino!
Read on to find out the results of a quick proof-of-concept test!….
The Royal Canadian Mint makes a $1 million dollar coin. It weighs 100kg and is 99.999% pure gold. Is there any way this massive novelty coin could possibly end up being a viable investment? Maybe!…
Polycarbonate panels are cheap, strong, light, durable, and easy to buy. They are perfect for constructing large scale LED strip installations. But what is the best way to secure your LED strips to the panels? I’ve done a lot of testing to find out, and the most reliable method turns out to also be one of the cheapest and easiest…
Google is waging a war to force websites to only serve content over secure
https connections by demoting the search ranking of websites that continue to use normal
http connections. “…we’re also working to make the Internet safer more broadly. A big part of that is making sure that websites people access from Google are secure.”
At first take, this seams like a magnanimous move by the internet’s benevolent dictator. Security is a good thing, so by forcing lazy websites to finally go secure we are all better off… right?
Unfortunately, things are not so simple and Google’s motivations are likely not so benevolent…
Making a smart color-changing light bulb is not that hard, but making one that is cheap to mass produce is hard. At $10 per bulb (delivered!), the new GE C-Sleep bulbs are amazingly cheap, especially considering they include a Bluetooth radio.
For Part #1, let’s look at the physical design and construction of these fancy bulbs!
This is a bank! Yikes!
Read on for details!