Archive for category: My Projects

Progress Report: Big Box O’ RF

May 27, 2015 | Amateur Radio, Arduino, My Projects, WSPR | By: Mark VandeWettering

Previously, I wrote about a project I called the Big Box O’ RF. I’ve shifted goals a bit, and done some experimentation, and have changed some of my goals and approach. First of all, I’ve changed the goal a bit. Instead of being a piece of test equipment, I’m actually more interested in using it […]

Teensy LC hooked to an Adafruit Ultimate GPS…

May 26, 2015 | Amateur Radio, Arduino, My Projects, Teensy, WSPR | By: Mark VandeWettering

One of the things that I really like about the Teensy LC (besides its low price) is that it has three hardware serial ports. Hardware serial ports are just nicer than the SoftwareSerial ports that you see on the ordinary Arduino platform. While the latest support for SoftwareSerial ports on digital pins work reasonably well […]

Testing the DS3231 module… I’m impressed!

May 23, 2015 | Amateur Radio, Arduino, My Projects, QRSS, WSPR | By: Mark VandeWettering

I hooked up my new DS3231 clock module to an Arduino that was being fed with the one pulse per second input from a locked GPS, and counted the number of pulses from each. In 3170 seconds, the clock module generated 103874565 pulses, for an average pulse per second of 32768.0015773 pulses per second. That’s […]

New (more accurate) clock module…

May 22, 2015 | Arduino, Development Boards, My Projects | By: Mark VandeWettering

As I mentioned in a previous post, I was not enormously satisfied with the accuracy of the DS1307 clock module that I got from China. It was hard to argue with the less than three dollar price tag, but I was hoping that the accuracy might achieve 20ppm (less than two seconds of drift per […]

Accuracy of the DS1307

May 21, 2015 | Arduino, My Projects | By: Mark VandeWettering

My tinkering with using the Adafruit GPS as a time base has yielded some results. I’m still getting a few spurious interrupts when I feed my buffered PPS signal into the interrupt pin on the Arduino, but they are relatively few and far between (and quite regular in appearance). A few short notes, followed by […]

Capsule Review: The Adafruit Ultimate GPS Module

May 19, 2015 | Amateur Science, My Projects | By: Mark VandeWettering

I picked up an Adafruit GPS module while at the Maker Faire. It’s a cool little module. I had a couple of old GPS modules: a Parallax PMB 648 and a Garmin 89, but this one is pretty nifty: It is small. It is breadboard friendly. It has a one pulse per second (1PPS) output […]

Rheoscopic Fluid (mica in suspension)

May 19, 2015 | Amateur Science, My Projects | By: Mark VandeWettering

I mentioned in my Maker Faire wrap up post that I had spoken with Ben Krasnow, the science guru behind the Applied Science Youtube channel. If you haven’t watched his videos, by all means, go over there and give it a whirl. Between playing with chemicals, low temperatures, rockets, X rays, and electron microscope, it’s […]

Anyone want to meet up at the San Mateo Maker Faire?

May 11, 2015 | My Projects | By: Mark VandeWettering

Just a head’s up that I’ll be at the San Mateo Maker Faire this Saturday, May 16th. If anyone if exhibiting or attending, either drop a comment here, or email me, or just send a tweet message to @brainwagon (you do follow me, right?) and we can try to get together and say hi. I […]

Monkeying around with the Lytro Camera…

April 25, 2015 | Cameras, My Photos, My Projects | By: Mark VandeWettering

A couple of people on my twitter feed yesterday (aside: I tweet using @brainwagon, and passed 5000 tweets yesterday) had questions about how this light field camera worked, how fast the sensor was, how long it takes to acquire the image, etc… While this is the first Lytro camera I’ve ever had the time to […]

New arrivals from Adafruit, and minor updates…

April 23, 2015 | Amateur Radio, My Projects, Raspberry Pi | By: Mark VandeWettering

I think Bill and Pete have been having way too much fun with the radio projects centered around the Arduino and the SI5351, so I decided to join them and ordered one of Adafruit’s SI5351 boards (I still have the kit from Jason’s Kickstarter which will almost certainly be better once I get up the […]

Using a SainSmart LCD panel with the Arduino 1.6.3 IDE…

April 22, 2015 | Arduino, My Projects | By: Mark VandeWettering

Yesterday I experienced some frustration with the SainSmart I2C LCD Module that I bought to help Pete and Bill uncover the problems that they’ve been having. If you go and read, you’ll find that I had a lot of difficulty finding the right combination of code that can be used with this module. Eventually, I […]

A (not entirely simple) LCD display for the Arduino…

April 21, 2015 | Amateur Radio, Arduino, My Projects | By: Mark VandeWettering

I am a big fan of Bill Meara N2CQR and Pete Juliano N6QW, hosts of the really great Soldersmoke Podcast. Together, they chat about homebrewing ham radio equipment, and what they’ve learned in their lessons along the way. Their “tribal knowledge” is of terrific help to someone like me who keeps making small forays into […]

New I2C peripheral: 6 DOF IMU, $5.89

April 20, 2015 | Arduino, My Projects | By: Mark VandeWettering

This little gadget arrived via Amazon Prime today: a three axis gyroscope/accelerometer that can be programmed via the I2C bus. I didn’t really have any reason to get one, other than simple curiosity, although I suspect that possibly mounting one on my (as yet unfinished) robot platform might be able to determine motion parameters of […]

Tinkering with individually addressable LEDs…

April 19, 2015 | Arduino, LED, Microcontrollers, My Projects | By: Mark VandeWettering

While digging around looking for an LCD module I thought I had stashed somewhere, I encountered a bag with some of 8mm individually addressable RGB LEDs that I had never done anything with. For fun, I thought I’d wire a few of them up on my breadboard and see if I could get them to […]

More camera experiments…

April 18, 2015 | My Projects, Raspberry Pi | By: Mark VandeWettering

Tonight’s tinkering was inspired by the script by spikedrba that I mentioned in yesterday’s post. I took down the hummingbird camera for a little maintenance, and while it was down decided to do some bench testing with new ideas inspired by what I read. Sadly, I didn’t have anything as photogenic as hummingbirds to stare […]