iiinova — where your digital self keeps evolving

David Sullivan @tkroo.fosstodon.org.ap.brid.gy · 04/03/2026

[Cat x-ray images. The cat is totally fine.] Henry the cat went to the emergency vet and brought home some x-ray images. Turns out he was fine and just had a tummy ache. Thanks to all the lovely folks at Sadie Veterinary Urgent Care. #cats #xray

X-ray of a perfectly fine cat abdomen. U_ABDOMEN_VD

X-ray of a perfectly fine cat abdomen. U_ABDOMEN_LAT_LEFT

X-ray of a perfectly fine cat abdomen. U_ABDOMEN_LAT_RIGHT

001 1

David Sullivan @tkroo.fosstodon.org.ap.brid.gy · 23/09/2025

Made a vinyl catalog app for my records. Adding all the records in progress. #svelte #VinylRecords #records_covers

Screen shot of a svelte record collection app.

010 1

David Sullivan @tkroo.fosstodon.org.ap.brid.gy · 25/02/2025

Made a "How much wax will I need?" calculator for candle making. Uses a formula that multiplies the water weight of a container by the specific gravity of the wax type. waxcalculator.netlify.app source: github.com/tkroo/howmuchwaxwillineed #svelte #candlemaking

Screenshot of a web app that calculates how much wax you will need when making candles in different sized containers.

030 3

David Sullivan @tkroo.fosstodon.org.ap.brid.gy · 17/01/2025

Note to self. The firefox issue is probably coming from some ubuntu + nvidia weirdness, I think it only happens after waking from suspend. Probably didn't need to reinstall FF after all.

000 0

David Sullivan @tkroo.fosstodon.org.ap.brid.gy · 17/01/2025

@jannem Here's a quick attempt at your idea. It limits the size and increases the growth of the circles based on brightness.

100 1

David Sullivan @tkroo.fosstodon.org.ap.brid.gy · 16/01/2025

circle packing is neat. codepen.io/tkroo/full/xxXaRXW (why doesn't this codepen work in firefox?) #p5js #circlepacking

200 2

David Sullivan @tkroo.fosstodon.org.ap.brid.gy · 22/12/2024

I found that the passive buzzer was getting really warm when inactive, that can't be right. Found this www.avrfreaks.net/s/topic/a5C3l0000… My module uses a PNP transistor, so I must set the IO pin to high to prevent it from wasting power. Fixed the issue with on_boot: - […]

fosstodon.org

Original post on fosstodon.org

000 0

David Sullivan @tkroo.fosstodon.org.ap.brid.gy · 19/12/2024

@vitriolix Bartok String Quartet No. 3 youtube.com/watch?v=XUg7N9AWuTU

001 1

David Sullivan @tkroo.fosstodon.org.ap.brid.gy · 16/12/2024

A thermometer with high and low set temperature alarms. I'm using it for melting/pouring candle wax. Initially measured -4°C in an ice bath and ~96.25°C in boiling water. I used the "calibrate_linear" filter in esphome to correct readings. Kinda sorta mostly […] [Original post on fosstodon.org]

101 1

David Sullivan @tkroo.fosstodon.org.ap.brid.gy · 11/12/2024

@InstantArcade This one is the 2.9" Epaper Module by WeAct Studio. It was cheap too.

001 1

David Sullivan @tkroo.fosstodon.org.ap.brid.gy · 11/12/2024

@InstantArcade me too! I thought they had to do a full update to change what is displayed, but they update much quicker than I expected.

100 1

David Sullivan @tkroo.fosstodon.org.ap.brid.gy · 11/12/2024

Analog clock on e-paper display, just for fun. A ghost second hand line remains when the display does a full update. Not sure how to fix that. #esp32 #esphome #epaper

121 2

David Sullivan @tkroo.fosstodon.org.ap.brid.gy · 05/12/2024

@rrmutt the display does sort of have that gas plasma glow. Apparently in 1992 that thing cost ~40K Also found a forum discussion about it: forum.lddb.com/viewtopic.php?f=32&t… but the image links are all dead.

forum.lddb.com

LaserDisc Database • View topic - Pioneer VDR-V1000 Project

000 0

Reposted by David Sullivan

GeekMomProjects @geekmomprojects.mastodon.social.ap.brid.gy · 04/12/2024

Prepping addressable string lights to adorn my friend's Christmas tree. There are 600 LEDs, powered by a Pixelblaze controller with an output expander that breaks them into three 200-pixel lengths for better power distribution. Gonna try to map their positions on the tree for cool 2D/3D patterns.

002 2

David Sullivan @tkroo.fosstodon.org.ap.brid.gy · 29/11/2024

More #candles this time using a soy, coconut, apricot, and paraffin wax.

8 light green candles in glass jars on a wood floor.

8 glass jars on a kitchen counter with wicks and pieces of wood to hold the wicks in place, filled with 170° F liquid wax, which is dyed light green.

000 0

David Sullivan @tkroo.fosstodon.org.ap.brid.gy · 26/11/2024

Minor upgrade. Added an 128G eMMC module to my #LePotato running #pihole on #armbian. armbian-config made it simple to transfer the installed OS from the sd-card to the emmc module. Had to fix a permission problem on one file to get pihole web ui working again. #librecomputer

Libre Computer Le Potato in a case with the top off.

010 1