What's that saying... measure twice, 3D print once? I am not feeling energetic today so I just did the simpler stuff (3D design/printing). I added lens caps as well since the original lens covers won't work with the front plates. Each lens has 3 parts...
Ahh man... it pains me to take apart the ML Hat Cam project for parts... it was a sloppy build/did its part. With the 5.5 crop factor this is apparently the equivalent of a 40-275mm lens (full frame). I have made great progress with the menu system,...
When I open the switch, the WS2812 lights up, and the LED's color changes with the color of the colorwheel knob. I can change the colorwheel knob position by touching the screen or rotating the encoder. And when I click the button,the light will be turn...
Dan Maloney 3:00 PM OK, let's get things going. I'm Dan, I'll be moderating today along with Dusan as we welcome Ahron Wayne to the Hack Chat. Ahron has done some cool work with X-rays and CT to visualize ink on carbonized papyrus scrolls for the Vesuvius...
I've added a few cool upgrades and new features to the booth since my last update. One of the biggest is that I decided to upgrade from the Pi 4B to the Pi 5! The Pi 5 offers a few key improvements: Faster image remapping, for lens correction (among...
Ok, definitely last log on colour sensing! I think it's good enough now. I've significantly sped up the colour sampling code by using the low-level read16() rather than the getRawData() library function, since the latter includes an unnecessary...
On top of the aluminum drive section frame, sits the Power section. The Power section contains the main power switches and all of the wiring to connect the 10 cell packs. (Batteries)
I’ve seen a lot of robotic lawnmowers over the years, but I wanted build something that was capable of more than just mowing the lawn— the ability swap different attachments for various jobs. Something more like a lawn tractor. The primary missions I’m...
One of the goals I have for Lawnny is for it to be able to move my boat into its parking spot behind my house. While it is possible for me to back it in directly with my vehicle, it's an extremely tight fit and the margin for error is just an inch or...
In order for Lawnny 5 to live up to his name, he really needs to learn how to mow the lawn. So for the past few days I've been working on connecting him up to my 30" Toro TimeMaster lawnmower. Here are the early results of this work: As you can...
There was one benefit to the unfortunate RUD (rapid unscheduled disassembly) of my motor controller in my last build log— it gave me an opportunity to spend some time on quality of life improvements. A fresh coat of paint Lawnny is an outdoor bot, so...
A bit 'o BackgroundEver since I got to visit a "Riding Railway" somewhere in Western, MA (US), I've always wanted to have a backyard railway that:I could rideHad some sort of purpose (moving firewood, rocks, etc)I've been interested in trains my whole...
I am not planning to install grab bars, but I want to prepare things so that they can easily be added in the future. I got some good ideas about this from the video Blocking Walls for Grab Bars. She also has some other pretty good videos related to grab...
I spent a few hours trying to fit in the recursive version of Towers of Hanoi (e.g., see here: https://www.cs.cmu.edu/~cburch/survey/recurse/hanoiimpl.html): FUNCTION MoveTower(disk, source, dest, spare): IF disk == 0, THEN: move disk from source to...
As Michael mentioned, he somewhat nerd sniped me with the the idea of squeezing a Towers of Hanoi solver in not the Science Fair Microcomputer Trainer. As an avid fan of both the Gakken FX R-165 and the Science Fair Microcomputer Trainer, I could't let...