SD card

Some wires are great for breadboarding, but others are not. Here's what to use and what not to use in your next project.

A practical introduction to quantifying perceived light intensity.

For a local area network (LAN) to provide good coverage, improved antennas are often a better (and less expensive) option than more access points. Directional antennas are sometimes the better choice, but often omnidirectional gain antennas will work well.