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 […]
Archive for category: My Projects
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 […]
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 […]
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 […]
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 […]
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 […]
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 […]
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.
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 […]
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 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.
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 […]
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 […]
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 […]
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 […]