Posts Tagged 'Projects'

The ESR electronics Tricorder: Update

The Arduino ESR project is moving along, albeit a little slowly. The miniature OLED displays finally showed up,  and I have to admit, I really like them. A lot. I’ve come up with a concept that will use the small OLED as a dynamic menu, with corresponding pushbuttons to move and select options.

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A Box of C.H.I.P. SBC (and a DIP, too)

When I last showed what was going on with my new CHIP SBC it was rather crude. Well, since then I’ve put it into a plastic enclosure, along with a power switch, voltage regulator, a USB hub, and a 32GB flash memory plug-in. I’m still using the VGA board with this iteration. For the next time around I will use the HDMI board, since the mini-monitor I found will accept either. Here is what it looks like:

20170129_144252

The monitor is something I found on eBay, and for about $25 more than what I paid for the one without a case. Oh well, live and learn. It is a 10.1″ diagonal screen with a 1280 x 800 display. I found mine on eBay, but I’ve recently seen where Walmart (!) is selling these for about $105, which is more than what I paid for mine but still not too bad.

Continue reading ‘A Box of C.H.I.P. SBC (and a DIP, too)’

The ESR electronics Tricorder: Update

In case anyone is wondering, the ESR project isn’t dead, I’m just waiting for some small OLED displays to show up. I ordered these a while back (in December), and they have yet to arrive. The plan is to use some of the empty space on the front panel next to the display already slated to go there. Here’s what it looks like:

oled_disp_crop

It has a 128 x 32 display space with an I2C interface. You can find this OLED display on eBay, and they go for around $4 each.

It was originally slated to arrive by the 3rd of January, and the tracking info says it’s supposed to show up today, so we’ll see.

 

Clever Arduino Case

One of the challenges that seem to keep coming up when working with an Arduino is where to put it so that it won’t get banged up on the workbench or tossed off the dining room table to make space for dinner. I’ve written about using wood, and my books give examples of various types of enclosures (everything from PVC tubing to pro-grade test instrument enclosures), but what other options are available? Is there an off-the-shelf solution? Turns out there is, if you have an R2 or R3 type Uno (or Duemilanove), and best of all it’s inexpensive.

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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’


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Little Buddy

An awesome little friend

Jordi the Sheltie passed away in 2008 at the ripe old age of 14. He was the most awesome dog I've ever known.