Watch Archived Video: Unboxing Hackerboxes

Over the past year, I have been a Hackerboxes subscriber. When the first couple arrived, I opened them up immediately. In fact, I got my first ESP32 through Hackerboxes.

Sadly, I got caught up in so many things I stopped opening them causing them pile up. So to close out 2017, I’m Unboxing Hackerboxes live while answering your electronics questions. (more…)

Date:December 31, 2017
Time:09:00-10:00 PST
Appearance:Unboxing Hackerboxes and more Q&A on AddOhms Live
Outlet:YouTube
Format:Vlog

picoscope 2204a on element14

Previously, I wrote up a hands-on with the PicoScope 2204A. At the time I only spent a few minutes with the device. I used it to “debug” an I2C bus between an Arduino and OLED screen. Since that initial hands-on, I’ve used the PicoScope in my lab. Most notably, I hosted another “hands-on” via an AddOhms Live Stream. I used it for another live stream where I talked about op-amps. Unfortunately, the video isn’t watchable due to some technical difficulties.

However, both of those activities plus debugging a new project I’m working on, gave me a chance to understand this humble USB-based oscilloscope. Now that I’ve held well over a month of bench time with it, I can say I am happy with the 2204A. If you’re looking for a low-cost, but fully featured oscilloscope, give the PicoScope 2204A a consideration. For more details on why I feel that way, click the button below to see my full write review on element14.

Full PicoScope 2204A Review on element14

Appearance:PicoScope 2204A Review on element14
Outlet:element14
Format:Other

PicoScope 2204 Review and Hands-On

Initial thoughts on my first hands-on with a USB 10 MHz Scope

picoscope 2204 review

If you need a reason to be an Element 14 member, let me suggest their Road Test program. Companies partner with Element14 to get people to try out their gear. A couple of years ago I got a new microcontroller board. This week I received a new test instrument. Here’s my hands-on Picoscope 2204 review.

The scope is bus powered. With the BNCs and type-B USB connector, it is slightly larger than an external USB hard drive. There is not much weight to the device. It does not feel cheap, just lighter than I expected.

Getting the scope up and running is a breeze. Pico Tech included a CD (or DVD?) to install the software, but I could not find my drive to check it out. Software downloads from Pico Tech’s website work great. It looks like you can even download the software and use it in “Demo mode” if you are curious how it works.

Continue Reading »

Pi Cap Hands On Review

My first impressions of a Raspberry Pi capacitive touch hat

Pi Cap Review

The Pi Cap adds capacitive touch buttons to your Raspberry Pi. Bare Conductive was kind enough to send me one. I do not have a project in mind right now, so here are my first impressions.

What is the Pi Cap?

Arduino tends to call daughter cards shields, while the Raspberry Pi community calls them hats. The Pi Cap is a hat. It plugs into the GPIO header of a Raspberry Pi and provides 13 capacitive touch pads. There is a traditional push button, an LED, and a prototyping area. While the Pi Cap does consume all of the GPIO pins, several are broken out near the GPIO header.

Continue Reading »

Aeroscope Review

Can a Bluetooth Scope replace the one on your bench?

Aeroscope Review

Previously, I reviewed the smartphone DMM, Mooshimeter. It is a great meter. One feature I didn’t spend much time on in my review was the ability to graph. Some see it as an “oscilloscope alternative.” The past couple of weeks, I’ve been using Aeroscope. It is a Bluetooth-based oscilloscope about the size of an older active probe. The Aeroscope runs $199 direct from Aeroscope Labs. The question I address in this Aeroscope review: is it better to buy this, a USB-based, or standalone scope for about the same money. How does it measure up?

My Aeroscope review looks at the specifications, the App that runs it and breaks down the key features. Let’s probe deeper.

Continue Reading »

Mooshimeter Review – Smartphone Multimeter

Can your phone replace your DMM?

Mooshimeter Review

For fifteen years I used my Radio Shack 22-168A digital multimeter as my go-to meter. A couple of years ago I bought a Fluke 115. Not because the RS meter lacked a measurement, but because I wanted a backlit screen. Here’s the crazy thing though in 20 years of multimeter development, there hasn’t been much innovation. Well outside of maybe auto-ranging.

All three meters I have, plus the Virtual Bench I reviewed about a year ago all continue to have the same limitation: they can only perform one measurement at a time. That’s one feature that makes my latest meter, the Mooshimeter, unique. It can measure both voltage and current at the same time. Oh, and it doesn’t have a screen.

Continue Reading »

Arduboy Review and Hands-On

What's great about combining Arduino with Retro Video Games

Arduboy Review Combing Arduino and Gameboy Banner

When it comes to Kickstarters, I have been relatively lucky. Most of the projects I back have shipped, even if years after I forgot. However, few Kickstarters are something I use on a regular basis. The Arduboy has been a pleasant surprise. This Kickstarter-backed project packages the ease of programming an Arduino into a game playing friendly form factor. Here’s my first Arduboy review, impressions and hands-on experience.

Continue Reading »

Hands-on with Arduino Create and Arduino IoT

Arduino and Genuino have a new platform for your IoT projects

Arduino Create and Arduino IoT Hands On 760px

This past weekend Arduino fans celebrated Arduino and Genuino Day 2016. In classrooms, maker spaces, and impromptu meet-ups around the world enginerds got together to learn and create with Arduino. At the Jacobs Institute for Design Innovation on Berkeley’s Campus, I first heard that Arduino Create had been launched.

In addition to hands-on learning workshops, there was a display of Arduino/Genuino projects by students. In the afternoon, three Arduino co-founders gave a short talk. David Mellis spoke on Machine Learning. Tom Igoe did his first talk on Technology and Humanities. Lastly, Massimo Banzi talked about IoT.

Arduino Day, Mellis, Igoe, Banzi

Arduino Day, Mellis, Igoe, Banzi

Massimo’s IoT discussion related to the earlier announcement that day of Arduino Create. This new platform has a web-based IDE, Arduino Project Hub, and Arduino IoT.

Excited about the announcements, I spent some time with the hackster.io powered Arduino Project Hub and the Arduino IoT.  Here’s my hands-on with Arduino Create.

Continue Reading »

Review of The Innovators: How a Group of Hackers, Geniuses, and Geeks Created the Digital Revolution (Simon & Schuster, 2014)

innovators-isaacsonReading a blog post like this one is something we all do multiple times a day. As early as 20 years ago, such a concept was still entirely unknown to the rest of the world. Walter Isaacson’s “The Innovators…” book is a history telling of the players involved from the early days of Ada Lovelace all the way through to Google’s search success.

Here are some of my favorite highlights from the book.

Hackaday Omnibus Vol 2 Review

Is a reprint of Hackaday.com articles worth it?

hackaday omnibus vol2 review

As 2015 wrapped up, I finally got around to flipping through the Hackaday Omnibus Vol #2. Before getting into what I think about this issue, I want to address an interesting point.

In our increasingly digital lives, the value of high-quality prints continues to rise. Hackaday Omnibus helps to maintain and set the standards for published works.

You might be thinking, “what’s the point of buying a paper version of their website?” That’s what I hope to address in this review: is Hackaday Omnibus worth buying?

What is the Hackaday Omnibus?

If you aren’t familiar with the word “omnibus”, it is a compilation of previously published works. (It’s also Latin “for all”, according to Wikipedia.)

The Omnibus is 8.5in x 11in x 0.33in (216mm x 279mm x 8.5mm) in size. The 128 pages contain 31 articles featuring 21 authors, from hackaday.com’s 2015 posts. Oh, and there are no ads.

Continue Reading »