Author Archives: gregorykimball

Upholstered fireplace

Posted on February 24, 2024 by gregorykimball

I believe fireplaces aren’t particularly useful. They aren’t efficient at heating a home, they create an ashy mess when used, and they take up a lot of floor and wall space. Perhaps they can be beautiful. With natural gas plumbing, … Continue reading →

Posted in Cats, Home projects | Leave a comment

DIY Christmas arches

Posted on December 20, 2023 by gregorykimball

If you’ve explored San Jose during December evenings, you’ve probably seen streets with lighted arches. One of the most impressive examples is Cherry Ave between Glen Eyrie Ave and Willow St. This year I decided to join the club and … Continue reading →

Posted in Home projects | Leave a comment

Turn signal Arduino device – update

Posted on September 27, 2023 by gregorykimball

In the last post, my turn signal device worked great when the car lights were running on battery. However, as soon as I turned the engine on the device was caught in a reboot loop. I hooked up my Xprotolab … Continue reading →

Posted in Cars, Electronics, Software | Leave a comment

Turn signal Arduino device

Posted on September 15, 2023 by gregorykimball

After 6 months of driving with a manual pushbutton left turn signal, I decided it was finally time to build a more permanent solution. In the 2013 Volkswagen Passat, the turn signals always have at least a 33% duty cycle … Continue reading →

Posted in Cars, Electronics, Software | 1 Comment

Updated busking kit, part 2

Posted on July 1, 2023 by gregorykimball

In this ongoing series, I’m documenting the changes to my busking drumkit. It’s been about 4 years since the last update, and some important things have changed. Let’s start with a photo: The kit includes an 18″ pancake bass drum, … Continue reading →

Posted in Music | Leave a comment

Turn signal triage

Posted on March 15, 2023 by gregorykimball

A few weeks ago, my 2013 Volkswagen Passat started exhibiting strange behavior: intermittent failure of the left turn signal, and random trunk openings while driving. After a few days of using a rope to pull the trunk shut from the … Continue reading →

Posted in Cars, Electronics | 1 Comment

Using GANs for PV production data

Posted on July 6, 2021 by gregorykimball

This year I’m excited to present our work on generative adversarial networks for synthesizing solar resource and PV production data. Come check out our modeling and validation approach! “Synthesis of multi-year PV production data using generative adversarial networks” Gregory M. … Continue reading →

Posted in Data, Software, Solar | Leave a comment

Maui, the Valley Isle

Posted on May 1, 2021 by gregorykimball

We went on a trip to Maui to celebrate springtime in paradise and this time Mavic Air 2 came along. Come check out scenes from Ka’anapali, the Upcountry and Iao Valley! Video capture by DJI Mavic Air 2, editing in … Continue reading →

Posted in Drones, Travel | Leave a comment

Image upscaling

Posted on March 20, 2021 by gregorykimball

Machine learning methods for “super-resolution” or “upscaling” are more accessible than ever. I was looking to make some out-of-print playing cards for Arkham Horror LCG, but I needed to upscaled my reference images by a 4x to achieve good printing … Continue reading →

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Big Sur Old Coast Rd

Posted on March 5, 2021 by gregorykimball

We spent an amazing day driving down in Bug Sur and exploring the Old Coast Rd. Come see the Bixby Creek Bridge, Big Sur River, and Molera Point! Video capture by DJI Mavic Air 2, editing in Kdenlive.