Archive for category: My Projects

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 […]

Motion detection in my hummingbird camera…

April 17, 2015 | My Projects, Photography, Raspberry Pi | By: Mark VandeWettering

My goal in experimenting with the Raspberry Pi camera was to try to make an efficient and effective camera which can detect motion. Previous incarnations of the camera script merely looked at the differences in pixel values between adjacent frames, thresholded them at some value, and then counted the number of pixels which exceeded this […]

Beginning to look at MQTT…

April 6, 2015 | Embedded, Internet of Things, My Projects | By: Mark VandeWettering

My weekend experiments lead me eventually toward flashing nodemcu, a Lua based firmware that runs on the ESP8266. Having a simple programming language (albeit one I’m not super fluent in) is very cool, and enables a whole bunch of nifty experiments. While reading up, I encountered the acronym MQTT again. From Wikipedia: MQTT (formerly Message […]

Morning visit by a hummingbird…

April 4, 2015 | My Photos, My Projects | By: Mark VandeWettering

I know, I know, it’s probably getting a little repetitive and boring. But I’m still getting a kick out of my motion capturing hummingbird camera. Improvements are coming.

The “official” ESP8266 Wiki…

April 4, 2015 | Development Boards, Embedded, My Projects | By: Mark VandeWettering

This morning I’m still drinking coffee and waking up, but I was pointed at “the ESP8266 wiki”, which appears to be this Wiki page. Bookmarked mostly so I can quickly find it again. But it has some good information. If I haven’t teased you enough with this experimentation, consider these features of the ESP8266: It’s […]

More ESP8266 Experimentation: Giving it the Boot…

April 4, 2015 | Arduino, Hacking, LED, My Projects | By: Mark VandeWettering

Got a chance to play around a bit more with the ESP8266 tonight. I dug out a nice little dual output power supply board that I had got from tautic.com with the hope that it would eliminate some of the erratic behavior that I had observed before. Sadly, that didn’t seem to solve my problem. […]

A few more snaps of hummingbirds…

April 3, 2015 | My Projects | By: Mark VandeWettering

A couple more quick snaps from my hummingbird camera. I’m going to try to work on some improvements over the weekend, but shockingly we are gonna get some rain, so I may concentrate on getting it waterproofed and ready for life outdoors.

First electrons for the ESP8266…

April 2, 2015 | Arduino, Development Boards, Embedded, Internet of Things, My Projects | By: Mark VandeWettering

In the telescope making world, we call the first time that a telescope is used to look at the sky “first light”. I’ve decided to call the first time I load some code onto a new development board “first electrons”. A few weeks ago, when I did a video that illustrated some of the bucket […]

Another hummingbird shows up on the camera…

April 1, 2015 | My Photos, My Projects, Raspberry Pi | By: Mark VandeWettering

When I got home today, it appeared that I had a few more images from my hummingbird cam. Luckily, I got several nice frames of him her (probably), so I put them together into an animated GIF. Nifty. When I get a chance to do more stuff on it this weekend, I hope to get […]

Minor tweaks to Arduino Morse Sketch…

March 30, 2015 | Amateur Radio, Arduino, My Projects | By: Mark VandeWettering

Commenter Andy wanted a version of my classic code that could generate a tone instead of just blinking an LED. I mentioned that I had done this before, but frankly couldn’t find the source code, so I modified my existing program to implement the simplest possible tone: a simple square wave. Rather than using a […]

Minor tweak to my Hummingbird Camera…

March 28, 2015 | My Projects, Raspberry Pi | By: Mark VandeWettering

One thing I didn’t realize when I setup the Raspberry Pi camera to monitor my humming bird feeder was that it has a bright red led which turns on when the camera is enabled. In most cases, this light isn’t a big deal, but I am pointing it out the window, so the reflection of […]

Motion Detecting Hummingbird Camera: Prototype

March 28, 2015 | My Photos, My Projects, Raspberry Pi | By: Mark VandeWettering

I like to see hummingbirds. They seem completely incredible to me, like little hyper Swiss Watches, buzzing around the garden. I’ve seen a few of them in our yard, but I’ve been meaning to encourage them showing up more, so I recently installed a feeder. While the syrup level has gone down, I have never […]

Tiny BASIC on a Tiny Display…

March 25, 2015 | Arduino, My Projects | By: Mark VandeWettering

Early in 2012, I posted a small version of Tiny BASIC that I had adapted to run on the Arduino. It is based upon code which was written by Mike Field, and based upon an earlier version of TinyBasic for the 68000 written by Gordon Brandly, which owes its roots to Palo Alto Tiny BASIC, […]

Using the Parallax PING))) ultrasonic distance sensor

March 24, 2015 | Arduino, My Projects | By: Mark VandeWettering

I intended to play around with some of the NRF24L01 radio modules I have around, but my brain didn’t feel up to it after a day of debugging. So, instead i dusted off a Parallax PING))) sensor that I’ve had around for a long time. I thought it might be fun to see if I […]

My version of minilife2 for the Arduino…

March 24, 2015 | Arduino, My Projects | By: Mark VandeWettering

Without a lot more explanation, I did a bit more work on my implementation of Conway’s life, reducing the overhead so I can implement the full 128×64 bit resolution of the OLED display. I also hardcoded an initial pattern: the classic Gosper glider gun. It runs at about 1.625 frames/second, so a new glider is […]