Waveguides come to mind, but so do active elements like filters made from nothing but PCB traces, which is the subject of this interesting video by [FesZ]. Of course, it’s not quite that simple.

Download the codes here Arduino simple shield potentiometer code: Arduino shield rc car: Arduino nano module L298P code: ...

In this project, I'll make a small circuit capable of controlling a servo, it is a servo tester made out of a 555 timer IC.

If that sounds like you, you might see some value in [Chris Borge]’s PCB agitator. The design mostly relies on 3D printed parts, including the main body.

If the circuit is relatively simple and electromagnetic compatibility is not an issue, a cost-effective single-layer PCB design may be able to be used. If power or ground planes are required or the ...

3] EasyEDA Next up, we have a free online PCB design software. The best part about this is the fact that it is online. Because of this, you don’t have to download heavy applications that these ...

Simple products are often less exciting than complex, high-tech ones, but provide an opportunity to learn about smart and efficient design. Robotwist is an example of a product that understands ...

An RC circuit in series with the coil allows full-current turn-on for reliable relay operation, then reduces the current to save power. Fellow engineer Sanjay R. Chendvankar of Mumbai, India ...