In this video I'm building an Arduino Heart Rate Monitor that is housed in a toy handle in the style of the Star Trek Tricoder. The device uses the PulseSensor with an Arduino Pro Mini and an OLED ...

We may receive a commission on purchases made from links. Computers have gradually been shrinking ever since they were invented. The first computer weighed several tons and filled up a room, and these ...

Making airplanes with foam board is really handy since this material is very cheap, easy to work with, and durable. It's the same material the channel Flite Test uses in their builds. I recently tried ...

The 8051 was an 8-bit Harvard-architecture microcontroller first put out by Intel in 1980.  They’ve since discontinued that ...

MMI is starting FDA-approved human trials for its tiny robot to use needles the size of eyelashes to help clear waste from the brains of Alzheimer’s patients. For the past few months, neurosurgeons at ...

Abstract: The drawing Robot is a very adaptable machine, intended to serve a wide assortment of requirements for daily and particular graphics and drawings. It can be used for practically any errand ...

I’m a freelance home improvement writer covering tools, DIY projects, and home products for Popular Mechanics and other publications. I’m a former residential and commercial carpenter, and an ...

There have been many questions about what direction Arduino would take after being bought by Qualcomm. Now it would seem that we’re getting a clearer picture. Perhaps unsurprisingly the ...

This golden cape was found in a grave at Mold in North Wales. It is decorated with an intricate pattern. The cape is the work of a very skilled goldsmith and must have been worn by a very important ...