Category Archives: Uncategorized

Fluid Simulations in the Kitchen Sink

In an age of ultra-powerful GPUs and cheap processors, computational techniques which were once only available to those with a government-sized R&D budgets are now available to the everyday hacker. An example of industry buzzword turned desktop software is the … Continue reading

Posted in Uncategorized | Tagged , | Leave a comment

Bolt Together 2 X 72 Belt Grinder

Below I have included some drawings and models that should hopefully help you with the dimensions and hole layouts. I included the drawings as pdf’s and the .step file for the entire assembly so you can see how it all … Continue reading

Posted in Uncategorized | Tagged , | Leave a comment

Someone Finally Did It With A 555

Someone Finally Did It With A 555 [Jarunzel] needed a device that would automatically click the left button on a mouse at a pre-set interval. For regular Hackaday readers, this is an easy challenge. You could do it with an … Continue reading

Posted in Uncategorized | Tagged , | Leave a comment

Alexa – NodeMCU: WeMo Emulation Made Simple

Let’s connect a 4 Channel relay module to control 2 lamps and 2 outlets as shown in above diagram. We will create 4 “single smart devices”: Light1 ==> Relay 1 ==> NodeMCU D5 Light2 ==> Relay 3 ==> NodeMCU D7 … Continue reading

Posted in Uncategorized | Tagged , | Leave a comment

Catalog of visualization types to find the one that fits your dataset

Catalog of visualization types to find the one that fits your dataset There are a lot of visualization methods to choose from, and it can be daunting finding the right visual for your data, especially for those just starting out. … Continue reading

Posted in Uncategorized | Tagged , | Leave a comment

DIY ant killer

Homebrew ant killer made from sugar, borax, and water is very effective in keeping ants out of the house. Dissolve a half cup of sugar with 1.5 tablespoons of borax into 1.5 cups of warm water. Then dip a cotton … Continue reading

Posted in Uncategorized | Tagged , | Leave a comment

Multiple Monitors With Multiple Pis

One of the most popular uses for the Raspberry Pi in a commercial setting is video walls, digital signage, and media players. Chances are, you’ve probably seen a display or other glowing rectangle displaying an advertisement or tweets, powered by a … Continue reading

Posted in Uncategorized | Tagged , | Leave a comment