awdev

awdev

0-day streak
I did a thing and the things for the thing came in the mail today
https://scrapbook-into-the-redwoods.s3.amazonaws.com/d23ce740-6169-43e7-a1c7-a5d862f0fbab-1000007448.jpghttps://scrapbook-into-the-redwoods.s3.amazonaws.com/5a428153-1a93-4a47-851d-8963dd5a3bb6-1000007445.jpg
I finally figured out some bugs in my airfoil parsing code, and now it works like a charm! Take a look at the comparison!
https://scrapbook-into-the-redwoods.s3.amazonaws.com/7d960bc8-14d9-4532-9e96-aafa4bc60e1e-image.pnghttps://scrapbook-into-the-redwoods.s3.amazonaws.com/78ef5a68-753e-48c7-9d5d-5d3c19b01b0f-image.png
spring-of-making emoji
goose-honk-technologist emoji
I haven't posted in a while, but I've been starting to self-learn aerospace engineering. I wrote a little website here (please note that it works horribly on non-16:9 screens) that can parse airfoils from CSV and show them on a canvas. However, I realized that browser JS is the most horrible language to do what is basically CFD in, so I've been starting to move the code to C# and Raylib. Left image is my new C# version, and the right image is the old web version.
https://scrapbook-into-the-redwoods.s3.amazonaws.com/9fd0d1a8-9e86-4cc1-93b3-de42d249e858-image.pnghttps://scrapbook-into-the-redwoods.s3.amazonaws.com/4f6169bb-3ee6-45ab-a7d2-884ba63b7c46-image.png
Pictures of the sky
https://scrapbook-into-the-redwoods.s3.amazonaws.com/362c6ea0-24c3-4130-a5f9-33268a05ab35-img_20240515_123633_886.jpghttps://scrapbook-into-the-redwoods.s3.amazonaws.com/4a778daf-fdec-4c92-9cc6-dd97ed397c33-img_20240515_123633_924.jpghttps://scrapbook-into-the-redwoods.s3.amazonaws.com/d98c717a-5d49-4d00-843d-6a2477114cf9-pxl_20240515_190427270-02.jpeg
I did a thing
https://scrapbook-into-the-redwoods.s3.amazonaws.com/b56ede5b-97f2-4d8f-969e-c3ec67829297-1000007069.jpg
I love wasting my money
https://scrapbook-into-the-redwoods.s3.amazonaws.com/8799cad3-c3b9-49ba-b1bd-b090812a1c32-screenshot_20240502-182635.png
Got some more progress done on the car.
I'm using Arduino IDE to debug some steering stuff for self driving RC car. LOOK AT THIS POTENTIOMETER GRAPH OOOOOOOOH BABY
https://scrapbook-into-the-redwoods.s3.amazonaws.com/338d5422-5a9e-49db-b5af-c8d4c0dce623-image.png
Well at least I don't have to buy batteries now
https://scrapbook-into-the-redwoods.s3.amazonaws.com/bb06c53d-be26-4ea3-8193-82cad501aff8-pxl_20240430_151019271.jpghttps://scrapbook-into-the-redwoods.s3.amazonaws.com/554326c4-78b2-4242-a80e-6e3f4548b581-pxl_20240430_151034949.jpg
Well at least I don't have to buy batteries now
https://scrapbook-into-the-redwoods.s3.amazonaws.com/5e63e533-5fab-4ceb-bfb9-5d7d0ca67bdb-pxl_20240430_151019271.jpghttps://scrapbook-into-the-redwoods.s3.amazonaws.com/bd771375-529e-4b78-9edf-2b788e5c544e-pxl_20240430_151034949.jpg
I 3D printed a mock-up of the lower pipe flange design for my #the-trail project. Here's hoping I get in!
https://scrapbook-into-the-redwoods.s3.amazonaws.com/e3211297-a89d-4f37-9e18-82490e9a4a7c-pxl_20240429_141406979.jpg
3d-printer emoji
orpheus emoji
modelling a yagi antenna based off of this. almost done!
https://scrapbook-into-the-redwoods.s3.amazonaws.com/5921ff5d-a7f2-4aa4-943b-238b872f8122-image.png
Got the buck converters working and powering the H bridge and microcontroller. Beeg battery with insanely high discharge rate. I've got some firmware on the microcontroller working with the H bridge, so it's almost time for some self-driving shenanigans. Just need to finish mounting my sensors. And I also burned like 5 of those stupid LEDs out yesterday. BRO THEY CAN'T EVEN RUN NICELY ON A DEAD 1S LIPO UGHHHHHHHHHHH
https://scrapbook-into-the-redwoods.s3.amazonaws.com/5f0e2cd9-4e79-4092-a668-92851c693e91-img_20240424_222939_179.jpg
electric emoji
Custom 3D printed mount for my ultrasonic distance sensors. Brass inserts to bolt into the chassis.
https://scrapbook-into-the-redwoods.s3.amazonaws.com/ac7452b3-9d3f-41c7-a0fb-145280dabd38-1000006521.jpg
Got my buck converters working! Voltage adjustments are in place. This is a 4S 3Ah LiPo with an XT60 connector. It connects the buck converters in parallel, meaning they don't have any voltage diminishment and extra current draw on one bus doesn't affect the other device. 12 volts from the buck converters is going to the H-bridge motor driver and 5 volts is going to the Arduino Mega (not pictured). Hope you guys like it!
https://scrapbook-into-the-redwoods.s3.amazonaws.com/8a515bd3-62c7-4ed3-8f12-962bd21276b0-1000006535.jpg
hardware emoji
Got some boards for a project. We have 5 ultrasonic distance sensors and 2 adjustable buck converters with voltage displays. Stay tuned for more developments soon 👀
https://scrapbook-into-the-redwoods.s3.amazonaws.com/e46e8224-0e0a-437b-aa51-43ed12e7a2ce-pxl_20240424_021421922.jpg
I finally made physics go brrrrrr woot woot
https://scrapbook-into-the-redwoods.s3.amazonaws.com/e703a946-1ecd-4bbc-87ec-33dbec3674a7-image.png
spring-of-making emoji
Got some basic collision working finally. If you look closely, the bounces downhill go further than the bounces uphill. The little red sticks coming off each face are the normal vectors.
https://scrapbook-into-the-redwoods.s3.amazonaws.com/97f4c275-0721-415f-ad19-ec4a34272565-image.png
spring-of-making emoji
Got a Dremel 3000 for my birthday!
https://scrapbook-into-the-redwoods.s3.amazonaws.com/f64897e6-6f78-4f9f-b21b-259df8f60194-pxl_20240422_035249948.jpg
I found out how to calculate the normal vector of a line and wrote my own algorithm to normalize it within (-1, 1). It may not be amazing or look great, but it's the small victories that count. Next step: getting this to work with a physics system.
https://scrapbook-into-the-redwoods.s3.amazonaws.com/16d5b576-b84c-449c-8914-231ca3ce3e2a-dx52j91xuzuyz3oksng6.png
I am beginning my improvements on my JS physics engine, first with bounces. Now to implement surfaces with normals and normal reflections. This is quite fun!
https://scrapbook-into-the-redwoods.s3.amazonaws.com/558262d6-09fb-4166-9484-32be63c4ed85-image.png
js emoji
I did a basic implementation of gravitational physics in one HTML file. I made it in 1 hour, and you can try it out here: aaronw-dev.github.io/physics-basics I will work to improve it, but for the time being, I think it's pretty decent.
https://scrapbook-into-the-redwoods.s3.amazonaws.com/fe03e700-1f79-4fba-b1ae-0f7256542bc7-image.png
Soldered two of my motors to the ESC. Did a test with battery, and it works amazingly! I got the du-du-du sound! Now to wait for the ESP32 (yes that's my FCU) and props to arrive.
https://scrapbook-into-the-redwoods.s3.amazonaws.com/32466b3e-a23d-4b9b-ac5e-82b9d52e6c6f-pxl_20240419_040150733.jpg
spring-of-making emoji
A major step towards the first test flight of automated bomb water bottle dropping bomb!
https://scrapbook-into-the-redwoods.s3.amazonaws.com/48c80482-a466-4303-ae51-de0d797326ff-pxl_20240418_231924670.jpg
I bought the HC-05 Bluetooth module a very long time ago and I recently dug it up in preparation for the hackathon. Just making sure it works, it clearly does!
https://scrapbook-into-the-redwoods.s3.amazonaws.com/53ae3ad4-2708-40dc-bc45-64f63b04da1c-image.png