just10's recent activity
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Comment on My homemade self driving RC car finally drives itself! in ~comp
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Comment on My homemade self driving RC car finally drives itself! in ~comp
just10 (edited )Link ParentI am using a relatively inexpensive 2D LiDAR scanner (FHL-LD19). But because its a 2D scanner, all of the information I get is from an imaginary plane roughly 10cm above the ground. So the car...I am using a relatively inexpensive 2D LiDAR scanner (FHL-LD19). But because its a 2D scanner, all of the information I get is from an imaginary plane roughly 10cm above the ground. So the car actually cant "see" the ground, just the walls around it.
So in theory it could navigate an overpass without hitting the walls, but it would have no idea where the lanes are in order to stay in them since they are just markings on the ground. I would need to add a camera to do lane following.
Here's a link to a video showing the raw LiDAR data getting processed into an occupancy grid
You can see the "ground" getting colored grey even though the car technically cant sense it. Its really just an assumption based on the fact that the LiDAR beam made it to a wall, so there must be nothing else in the way.
edit: I think I misunderstood your question initially. If you're asking whether or not my map structure could handle tunnels or bridges above/below an already explored area, it cannot. Since my sensor is a 2D scanner I developed the occupancy grid without elevation in mind unfortunately :(
That sounds like an interesting challenge though that I might try to implement later!
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Comment on What programming/technical projects have you been working on? in ~comp
just10 LinkI've been building my own self driving RC car: Instagram link The code is written in C++ and does real-time SLAM, path planning and navigation!I've been building my own self driving RC car: Instagram link
The code is written in C++ and does real-time SLAM, path planning and navigation!
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Comment on My homemade self driving RC car finally drives itself! in ~comp
just10 LinkI've been designing and coding a self driving RC car inspired by Steven Gong's videos where he did the same. I've finally reached a milestone where the car can fully autonomously drive and...I've been designing and coding a self driving RC car inspired by Steven Gong's videos where he did the same. I've finally reached a milestone where the car can fully autonomously drive and navigate! I hope to compete in the next F1Tenth competition.
The chassis I designed in fusion 360 and all of the code is running on a raspberry pi.
One of my next goals is to perform controlled drifting autonomously!
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My homemade self driving RC car finally drives itself!
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Comment on What are we in the golden age of? in ~talk
just10 Link ParentAbsolutely, flitetest has really transformed the hobby!!Absolutely, flitetest has really transformed the hobby!!
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Comment on What creative projects have you been working on? in ~creative
just10 LinkI've been designing bird houses that look like real houses. I'm trying to do most different styles of homes; contemporary, modern, victorian, farmhouse, etc. I recently got a laser cutter and I'm...I've been designing bird houses that look like real houses. I'm trying to do most different styles of homes; contemporary, modern, victorian, farmhouse, etc. I recently got a laser cutter and I'm hoping to make kits and design files to put on Etsy or something.
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Comment on What have you been listening to this week? in ~music
just10 Link ParentThank you. You have awesome taste in music. Not sure if you've heard of Keifergr33n. One of my favorite artists. He has a series called "What's Happening" that you can also find hour long mixes of...Thank you. You have awesome taste in music.
Not sure if you've heard of Keifergr33n. One of my favorite artists. He has a series called "What's Happening" that you can also find hour long mixes of with awesome visuals. Great to have on in the background at a party.
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Comment on Anyone here like motorcycles? in ~transport
just10 Link ParentAlso have an SV-650. A later gen that's fuel injected. Such an amazing bike. I hope you get yours fixed.Also have an SV-650. A later gen that's fuel injected. Such an amazing bike. I hope you get yours fixed.
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Comment on What are we in the golden age of? in ~talk
just10 LinkMaking/Tinkering. Access to software and tools to facilitate creatives has gotten cheaper and easier to get into. 3D printers and keep getting cheaper, and other technologies like CNC and laser...Making/Tinkering. Access to software and tools to facilitate creatives has gotten cheaper and easier to get into. 3D printers and keep getting cheaper, and other technologies like CNC and laser cutting are now entering a hobbyist price point. You can find a YouTube tutorial to learn almost any software or hardware tool. And many of the professional CAD and coding tools of the day offer "community" versions of their software that can be used for free.
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Comment on I need casual, easy going games to help me relax. So, Tildes, what you got? in ~games
just10 LinkRimworld. It can be intense at the higher difficulty settings, but at normal or casual difficulty it is a super relaxing base building, story generating game that will steal your time like its...Rimworld. It can be intense at the higher difficulty settings, but at normal or casual difficulty it is a super relaxing base building, story generating game that will steal your time like its nobody's business. There is always something to do and never a lull in progression.
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Comment on Beer peeps, what have you been drinking? in ~food
just10 LinkMy local Costco has some imported Warsteiner German Pilsner on sale which is a nice crushable alternative to the typical Lone Star or Sapporo "palette cleansing" type beers.My local Costco has some imported Warsteiner German Pilsner on sale which is a nice crushable alternative to the typical Lone Star or Sapporo "palette cleansing" type beers.
For sure! It is definitely going to be quite the challenge, but if I can pull it off it would be very helpful for operating the car at its limit. Plus it would be quite the flex to show off drifting just for style!
Luckily I found a amazing Stanford paper that goes incredibly deep into autonomous drifting. The paper mainly focuses on the safety advantages in being able to still control a car that is sliding or has "saturated" tires. This paper will be invaluable for when I get to implementing a drift controller.