Here are some of the notes I took while reading the book: When you run an Xcode project from a standard (i.e., non-admin) user, you might be asked to enter credentials of a user in the “Developer Tools group.” You can fix this by adding the (current) user to the group: When you purchase something from the Mac App Store, you’ll see a little icon in your dock, but that doesn’t show you the percentage of progress.
Disclaimer: I received this book for free through the O’Reilly Blogger program. is a very short “book” on RFID (Radio Frequency Identification), a way to tag and identify objects over varying ranges, and how to use Arduino to create a few interesting RFID projects.The book assumes that you have some experience with Arduino and micro-controllers (i.e., do you know what a breadboard, jumper wires, and circuits are? We start with a very brief introduction to RFID, follow up with two introductory technical tutorials on Arduino, and end with a fairly simple home automation project: Between my officemate and me, we have dozens of devices drawing power in our office: two laptops, two monitors, four or five lamps, a few hard drives, a soldering iron, Ethernet hubs, speakers, and so forth.A group of free-minded bloggers, journalists, and activists, we are based in the Middle East, North Africa and the rest of the world. Our baseline: Arabs too are worthy of universal Human rights! We do not—and will not—pursue any other agenda than those stated in our editorial line: figting corruption, defending democracy, and promoting creativity.Keen on perpetuating the democratic spirit of the Arab Spring, we confront both We fight authoritarianism and corruption, advocate free elections and open government, and champion civil rights. Cairo is the undisputed Hollywood of the Arab world. ISIS’s claim to bring back the Caliphate is nothing new under the sun. Who is benefiting from the association of government and religion in the Middle East? In this eloquent defense of secularism, Ayad Jamal Al Din brings that point home.We have a zero-tolerance policy against illegal pornography.
We do not own, produce or host the videos displayed on this website.The book is only 28 pages, so it’s more of a long tutorial than a book, but it still acts as a good introduction to RFID.Disclaimer: I received this book for free through the O’Reilly Blogger program. When you see “I am a sentence I am another sentence,” you know that you’re really looking at two different sentences even though the period between “sentence” and “I” is missing.This project is a system to reduce our power consumption, particularly when we’re not there.When either of us comes into the room, all we have to do is tap our key fobs on a reader mounted by the door, and the room turns on or off what we normally use. The reader by the door reads the presence or absence of the tags.If you try something similar with the computer (try leaving the semi-colon off in C or miss an indent in Python, for example), you’ll get a nasty error message.