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Ask HN: What Are You Learning?

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Re: Ask HN: What Are You Learning?

#42
post #36

Arduino programming + motor control (Stepper robots, for robotics - toy, not industrial) cobbled with 3D printing. I've always been fascinated with robotics, and the barrier to entry is getting lower by the second. But I want to know all the details, so I'm going slow and steady at it (Like, instead of using libraries - at least when learning - I'm coding 100% of the stepper motor control routines). I plan on making…

I’m on a similar page, using 3d printing and arduino/pi/motors for basic toy automation.

My first project was not robotic, but an automated hydroponic system. The automation is dead simple but I’ve been really pleased with it. It’s one tent divided into a nutrient film technique section and a flood and drain section. Just timers, fans, and pumps, and a lot of 3d printed parts to pull it together.

Now I’m really interested in automation of my nutrient reservoir. I suspect it’s a terrible idea, but I’m happy to learn from failures. The gist of it is a system that occasionally reads the total dissolved solids and pH of the reservoir, then automatically adds the correct amount of nutrient, pH balancing solution, and water to balance the system again.

No where near as interesting or challenging as a robotic arm that moves chess pieces, but, baby steps!

Re: Ask HN: What Are You Learning?

#44

Parenting. We have a very energetic 15 month old who has decided that 8 hours of sleep at night + a 1.5 hour nap is all she needs. Also, she has been teething pretty much non stop for 9 months. Aside from that, I'm learning a lot about virtual machines by porting FreeBSD to run in the Firecracker VM.

Good luck and enjoy!

I truly believe that parenting has made me a better employee/worker/person. It’s taught me patience, the importance of saying no (and continuing to say no), empathy (and how correct or challenge someone even when I’m deeply empathetic with them), improved my public speaking (treat those bedtime book readings as performances!), and importantly how to simplify explanations for a young child.

Parenting is wonderful, joyful, and challenging experience in and of itself, but it can and does integrate with the other parts of your life. Although perhaps not porting an OS to a VM hypervisor…

Re: Ask HN: What Are You Learning?

#45
Hockey. I always wanted to try it, but never lived near an ice rink till one opened up down the street. I’m having a lot of fun, although still can barely control myself, let alone the puck.

I’m also spending some quality time with software and enterprise architecture books, working on some container oriented side projects, and somewhat surprisingly learning the Microsoft Power Platform, as my team keeps catching requests that are a good fit for a low code solution.

Re: Ask HN: What Are You Learning?

#46
I just bought some acreage with the immediate intention of learning how to regenerate the soil to lay the groundwork for an orchard and vegetable garden next year, integrating animals and bees. I am in awe of how much there is to learn and how interlinked every decision is. It is easily the most challenging and exciting thing I’ve ever embarked upon.

Re: Ask HN: What Are You Learning?

#49
Arm architectures, especially the one on an old raspberry pi b+ (running armhf or armel due to some technical magic).

I want to use the old pi as a node in a k3s (lightweight kubernetes distro) cluster but the current releases won’t run. I’m currently reading up on qemu and the k3s build process (which to me seems kinda convoluted).

Re: Ask HN: What Are You Learning?

#50

I'm learning docker to run a bunch of services on an old computer. I want to try out Navidrome for serving music and a photo gallery to use instead of Google photos.

> I'm learning docker to run a bunch of services on an old computer.

Super cool! This is my go-to setup for all my at-home stuff. I was previously running Kubernetes for my home lab and had a bunch of fancy stuff for it setup (I'm a platform security engineer in an AWS environment) -- but I went back to managing Docker containers for each application I care about as it is so dang simple.

Good luck on your Docker/container journey. Totally useful in any situation in my opinion.

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