Arduino on AddOhms by Bald Engineer

Learn to use a scope with an Arduino | #28

Mon, 03 Sep 2018 08:51:00 +0000

Electronics Tutorial Video

Learning to use a new oscilloscope can be daunting!

In this video, I show five measurements you can make using just an Arduino as your DUT. Learn how to offset voltage, set up measurements, enable infinite persistence, save reference waveforms, AND trigger (and decode) serial signals.

DIY Arduino Turn-On and Debug | #27

Fri, 06 Jul 2018 08:51:00 +0000

In part 3 of the DIY Arduino series, James solders, turns on, and, debugs the Pyramiduino! In this episode you can see how to solder parts with a toaster oven, test a board with a scope, and program an Arduino bootloader.

Episode #27 Show Notes and Links

Support AddOhms on Patreon
Order Pyramiduino R5 from OSHPark
JEDEC Reflow Profile via Diodes Inc.
MG Chemicals Low-Temp Solder Paste via Digi-Key
FTDI Friend from Adafruit
Coin Acceptor Live Stream
Open Vapors Reflow Controller on Hackster.io
Micrel MIC5504 datasheet
5 LDO Considerations from baldengineer.com
Rohde & Schwarz RTM3004 Oscilloscope
Code and Final Schematic on GitHub
Choose your side (KEY-cad or KAI-cad) T-Shirt from Contextual Electronics

Part 1: Schematic in KiCad for DIY Arduino
Part 2: Creating DIY Arduino PCB

Coin Acceptor Programming | Live Stream #9

Sun, 17 Jun 2018 08:51:00 +0000

This week the bald engineer unboxes swag from electromaker.io, programs the Adafruit Coin Accepter, with a Pyramiduino, and answers questions along the way.

Interesting time code jump points:

7:59 - See Programming Bootloader Clip
12:11 - Coin Acceptor Programming
18:00 - Pulses on the R&S RTM3004 Oscilloscope
42:05 - Code working as intended!

Making An AddOhms Episode

Thu, 17 May 2018 08:51:00 +0000

The primary tool I use to create AddOhms animations is Adobe After Effects. In this live stream, I take you through the process I use.

For an upcoming video, I needed an animation showing how the Arduino Uno’s auto-reset circuit works.

As you can see, what is on screen for a few minutes (at most) can take several hours of effort!

DIY Arduino Schematic in KiCad | #23

Thu, 03 May 2018 08:51:00 +0000

This video is part of a 3 part series, with the other two parts coming in the future. When it’s time to design a custom PCB for your project, you might be wondering how to design in an Arduino. This video shows the pieces that go into the schematic. The next video will show how to layout the PCB. And after the boards come back, I will show how to turn it on.

DIY Arduino PCB in KiCad | #24

Wed, 28 Feb 2018 09:51:00 +0000

Part two of the DIY Arduino series. In this video, we create the PCB. Also, the project gets a new name: Pyramiduino. Watch the process to make a PCB in KiCad. And the Bald Engineer gives you a challenge, can you find the unconnected nets before he does? Check out Part 1 - the Schematic and subscribe to see when Part 3 - Turn On is posted.

DIY Arduino PCB in KiCad Show Notes

Pyramiduino Project on GitHub
Getting to Blinky: KiCad tutorial from Conextual Electronics
OSHPark- Bald Engineer’s preferred PCB supplier. (They provided the boards for free for this project.)

Part 1: Creating DIY Arduino Schematic in KiCad
Part 3: Soldering and testing DIY Arduino

Pull-Up Resistors and Pushbuttons | #15

Mon, 07 Sep 2015 14:13:29 +0000

There is nothing more frustrating than a push button that seems to work at random. The good news is the fix is pretty simple: a resistor.

It may not seem obvious when you first start working with electronics but a “floating pin” doesn’t have a defined “high” or “low” level. Remember from the Analog and Digital video, that Digital Electronics has defined voltage levels. Well, when you don’t connect anything to the I/O pin of your microcontroller, the voltage level is undefined!

Post Your Code (In the Style of "Let it Be")

Sat, 31 May 2014 08:51:00 +0000

When asking questions in a forum, like the Arduino forum, it is important to Post Your Code! It is so difficult to help without seeing what you intended.

This was a team effort from the members of the Arduino forum.

First, all of the people who help answer questions, of which, there are too many to list.

The real credit goes to wildbill and Grumpy_Mike. wildbill wrote the original lyrics and Grumpy_Mike put them to music, lending his voice. I (JamesC4S) just did the video animation.

Episode 7: Comparing Arduino and Raspberry Pi

Sun, 15 Dec 2013 20:36:22 +0000

https://youtu.be/7vhvnaWUZjE

Trying to decide between an Arduino or Raspberry Pi for your project? In this video we look at what the difference between the two boards are and talk about what kinds of projects each are best at.

Episode Notes

This one has been a long time in the making for two reasons. First, I spent some time creating an opening sequence for the videos. Thanks to everyone who helped me decide on the right music to use.

Analog and Digital, what are they? | #6

Sun, 20 Oct 2013 22:52:55 +0000

https://youtu.be/WxJKXGugfh8

We live in a world of analog. Clocks are a great example of how time is continuously changing with nearly infinite precision. However, when you look at a digital clock, there are very specific “digits”. (Get it? Digital… Digits…) Using the analogy of clocks, this TutorialCast explains the basic difference between Analog and Digital Electronics. It ends with a slight twist.

Links mentioned in video:

AddOhms Episode 5: /ac-vs-dc
Adafruit ADXL377 Breakout board: http://www.adafruit.com/products/1413
Arduino (In case you need it): http://www.arduino.cc

Support AddOhms

Support AddOhms by joining the Bald Engineer’s Patreon.

Common Circuits in a Schematic | #3

Thu, 04 Apr 2013 08:51:28 +0000

Part 3: Common Circuit Schematics

The third part in a three part series on reading Electronic Schematics.

Using the Arduino Uno reference design as an example, we look at common circuits we might find when reading a schematic.

Part 1: Passive Components
Part 2: Active Components