These light up paper circuit cards were much easier to make than I expected and only need a few inexpensive materials.

A circuit bot is a great way to introduce children to basic concepts of creating circuits. One of the most important things about circuits is that energy flows in one direction, so connecting the ...

Figure 1 gives a simple circuit for the PUSH ON, PUSH OFF function with only a few inexpensive components. In this design, the output is connected to the input of the gadget when you press the push ...

The Proxmark3 PCB 125kHz antenna., GNU GPL version 2, GitHub link. Picture this: It’s the end of the year, and a few hardy souls gather in a hackerspace to enjoy a bit of seasonal food and hang out.