AddOhms #6: Analog and Digital
It isn’t always clear what is meant by calling a device or a signal “analog” and “digital”. This AddOhms tutorial explains the difference between analog and digital by using an …
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Introduction to Polymer Capacitors
November 2013’s issue of Electronic Products features an article on the cover titled “Introduction to Polymer Capacitors.” The author is, well, me. This article explains the …
Read MoreArduino pinMode(): When to use and why
All Arduino boards have GPIO pins with digital and analog capabilities. The Arduino pinMode() function determines how the pins will operate. A surprise might be that in some cases …
Read MoreUnderstand the difference between DC and AC
The fifth episode of AddOhms tackled the difference between AC and DC. One of the things I wanted to stress in this tutorial is that even though the acronyms stand for “current”, …
Read MoreLearn how to use a Mixed Signal Oscilloscope
When I teach the Electronics Measurements class at the TechShop in Austin, I take a lot of pride in showing off the Mixed-Signal Oscilloscope. We have a Rigol DS1102D as well as a …
Read MoreOuch. The Arduino GSM shield has a pretty serious design flaw, with its capacitors.
Tantalum is a really misunderstood capacitor. Well, all capacitors are misunderstood, but that’s a subject for another post. I ran across this post on the Arduino forums on the …
Read MoreMinor updates to the Open Source Reflow Oven Project
The next stage of the reflow oven project is moving to a custom PCB for the controller electronics. Overall the board is based on the ATmega32u4 with a DS3231 RTC. The LCD module …
Read MoreMSO Demo Board
Last Update: 09/24/2013 Status: Done Github: https://github.com/baldengineer/Mixed-Signal-Oscilloscope-Demo-Board Abstract As a member of the TechShop in Austin, TX I teach a class …
Read MoreEAGLE: Introduction Class Resources
The following resources compliment my EAGLE Introduction Classes and eBook. Files mentioned in those resources will be provided here, although, the original creators may have newer …
Read MoreA new series on AddOhms, Electronics basics, starting with: Voltage, Current, and Power Explained.
Starting with this new AddOhms TutorialCast series, we are taking a look at Electronics Basics. The first topic is on the differences between Voltage, Current, and Power. The twist …
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