[NovaSpirit] asserts that Freecad is simple, and provides a simple walkthrough to create a part in the video below. If this were riding a bike, this tutorial would be akin to watching someone ride ...

Luckily, [Paul] sent in a great tutorial on building a LiPo charger that works over USB. In the original design of [Paul]’s board, he chose a Maxim MAX1551 Lithium battery charger.

This simple water detector circuit uses alternative voltage in order to prevent the corrosion of the electrodes. It is easy to build and uses N1 as a trigger Schmitt gate which generate the AC. If ...

The simple audio mixer circuit is built on common base principle, where input voltages are transformed in alternative currents wich are summed to form the alternative current component for the ...

A simple electric circuit learns to classify data in a creative new design that could lead to more energy-efficient machine-learning hardware.