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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.
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.
This book your computer to work with the looser languages used by humans (like English) instead of the stricter counterparts used by machines.
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.
The icon is small, and the progress bar seems to remain blank for a long time for bigger downloads.
You’ll also hear about the challenges and successes of three producers who are marketing organic, value-added products.
Speakers: Kathryn Lukas, Farmhouse Culture; Megali Brecke, Kitchen Witch; Jenna Muller, Full Belly Kitchen; Danielle Shaeffer, New Leaf Community Markets; Merrilee Olson, Preserve Farm Kitchen; Shermain Hardesty, UC Small Farm Program; and Erin Di Caprio, UC Davis Food Science Department. The workshop registration fee includes an organic lunch. Contact Shermain Hardesty, workshop organizer, regarding questions about the workshop content.
was incorporated as a not-for-profit research organization in 1964.