Month: April 2013

Ohm’s Law Reference Poster

Ohm’s Law Reference Poster

I love this Ohm’s poster by ZarthCode’s Anthony Clay. In addition to the classic Ohm’s Law triangle (“It’s the Law!” the poster proclaims) it also includes a resistor color chart, a discussion of voltage dividers, as well as an explanation of the markings on surface mount resistors. Just the thing for a hackerspace! The poster […]

PeerTalk, BeagleBone, and Raspberry Pi

I came across an excellent bit of wizardry by Rasmus Andersson called PeerTalk. It’s a Objective-C library allowing you to communicate between your iPhone and your Mac over the USB dock cable using TCP sockets. My immediate thought was that the same mechanism should be able to be used to talk to something like the BeagleBone, or the Raspberry Pi, not just your Mac.