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Ask HN: What are you working on (September 2024)?

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Re: Ask HN: What are you working on (September 2024)?

#831

Post by digging »

XetiNA wrote: post #765

I've been trying to work on things that aren't necessarily economically valuable but that are on my mind and I want to share. For example, a carbon footprint calculator that pokes fun at the idea of the individual being to blame for climate change. https://a.mancato.nl/climate-calculator And after seeing my dad struggle to find stuff online because he was seeing so many ads, I made an adblocker ad. https://a.mancato.…

Fun calculator. A little noisy to make its points, but "You could die right now and Shell could continue operating for 6 seconds longer with the carbon you saved" is a powerful statement.

I wasted so much energy in my most vigorous years trying to make decisions that literally don't matter at all and felt so important. I could have been building skills to influence policy instead, but the sustainability movement was bamboozled pretty hard.

Re: Ask HN: What are you working on (September 2024)?

#833

Post by j2kwebb »

allpratik wrote: post #654
j2kwebb wrote: post #641

I’m scraping a list of every single UK company that has raised funding in the last 3 years - with details of how much and when - after finding out the info is available but hidden in certain filings on the Companies House website. Let me know if you’d like a copy for free - should be done in the next week or two!

Definitely interested!

Great, I’ll send to the email in your profile!

Re: Ask HN: What are you working on (September 2024)?

#834

Post by j2kwebb »

vertigolimbo wrote: post #673
j2kwebb wrote: post #641

I’m scraping a list of every single UK company that has raised funding in the last 3 years - with details of how much and when - after finding out the info is available but hidden in certain filings on the Companies House website. Let me know if you’d like a copy for free - should be done in the next week or two!

Yes please!

Great, will do - what email address?

Re: Ask HN: What are you working on (September 2024)?

#835

Post by brotchie »

__mharrison__ wrote: post #261
brotchie wrote: post #172

Reverse engineering my e-bike’s head unit and motor controller to build a custom head unit out of a Raspberry Pi with oled touch screen (head unit will also be used to control LED patterns on the bike). Used a logic analyzer to work out the protocol between the head unit and the motor controller (uart at 9600) and used a ESP32 to man in the middle the protocol. Currently reverse engineering the meaning of the bytes i…

What kind of motor does your bike have?

Don't know the exact motor (Have yet to pull the back wheel off and inspect) but the motor controller is a Dongguan Jing Hui Brushless DC motor controller. The controller "head unit" is a Tian jin Yolin YL90T-H.

Re: Ask HN: What are you working on (September 2024)?

#836

Post by j2kwebb »

yakshaving_jgt wrote: post #722
j2kwebb wrote: post #641

I’m scraping a list of every single UK company that has raised funding in the last 3 years - with details of how much and when - after finding out the info is available but hidden in certain filings on the Companies House website. Let me know if you’d like a copy for free - should be done in the next week or two!

How did you find the hidden information?

It’s on the forms SH01 for new share allotments. Then look for the number allotted and the amount paid (per share), and the total funding is the number allotted multiplied by the amount paid

Re: Ask HN: What are you working on (September 2024)?

#837

Post by germinalphrase »

I am experimenting with concepts to address the question: “how do you get people to socialize outside their houses?” which prompts all sorts of additional interesting questions around building anticipation through paralocal auditory broadcasting, environmental profile sharing, seeding location-based experiences, and so on. Consulting pays the bills, but this is a fun diversion.

Re: Ask HN: What are you working on (September 2024)?

#839

Post by michelpp »

I'm extending Postgres with the GraphBLAS/SparseBLAS APIs for sparse and dense linear algebra operations directly in SQL with OneSparse. Like JSON/JSONB did for unstructured data, OneSparse does for matrices, vectors and linear algebra optimized with the SuiteSparse JIT compiler to target dense and sparse kernels for CPUs and GPUs.

https://github.com/OneSparse/OneSparse

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