Archive for the 'Wireless' Category

New series: Arduino Test Equipment

The ESR electronics Tricorder, Part 1

In this article I describe the beginnings of a device that I like to think of as a Tricorder for electronics. This is the first of a three part series in what will (hopefully) be the start of a series of articles that describe ways to use Arduino boards and AVR microcontrollers to build useful, low-cost test, measurement, and control devices.

For additional details and definitions be sure to check out my books “Practical Electronics: Components and Techniques” and “Arduino: A Technical Reference“. Both are available from O’Reilly, Amazon, Barnes and Noble, and numerous other places where fine books are sold.

Continue reading ‘New series: Arduino Test Equipment’

C.H.I.P: The VGA test setup

Here are some images of the CHIP test setup I cobbled together. It’s not pretty, but that’s not important for right now. It works, and it demonstrates one way to assemble things and get a working single-board Linux system up and running. Continue reading ‘C.H.I.P: The VGA test setup’

Fun with Bluetooth and Android

About a month ago I went on vacation with my family, part of which involved a large cruise ship. I also had a new Samsung Galaxy phone, and I was curious to see what it could do. I had been avoiding getting a “smart phone” for a long time, but lack of 4G and generally crappy reception almost everywhere finally pushed me into it. Now I have something that has both WiFi and Bluetooth, in addition to being a phone. Lots of possibilities there. Continue reading ‘Fun with Bluetooth and Android’