janosch_123

5 ms·

1.
by janosch_123 3mo ago
I was reading the article and got SAP/ABAP flashbacks. - source code in database: yes - own IDE for questionable reasons: you bet! - custom table objects: we got your back. - strange forks of common python libraries: would you like war
2.
by janosch_123 9mo ago
His letter is from 1986. Mercedes W123 and R107 clusters had triangles pointing in the filler direction in the 1970s already. (Granted, not quite as clear as his next iteration).
3.
by janosch_123 11mo ago
Https://allye.com are assembling a 1 megawatt hour unit. I got a tour last week, super exciting. They raised another $2.5M round too. Fellten and Allye are the biggest two here in the UK I think.
4.
by janosch_123 1y ago
just ordered "The Managers Path" because of your post here, looking forward to read it.
5.
by janosch_123 1y ago
> My flight out is in 6 weeks Where are you going?
6.
by janosch_123 1y ago
Not sure about that. If you accelerate a 2t vehicle to 60mph and then decelerate it back to 0mph then they would stress the tyres in the same way, no matter if you do EV & regen, EV no-regen or ICE, right? (I am keeping the weight const
7.
by janosch_123 1y ago
For DIY EV conversions (I built some cars) you usually hook up the "regenerate braking" to the brakelight switch. So as soon as you tap the brake pedal just a little, you start regenerating and see the amps flow back into the batt
8.
by janosch_123 1y ago
Of course. It is an intriguing idea, but a local maximum. - The panel sits at open-circuit voltage of 48V - That then needs to be converted/boosted to 400V (conversion loss) - The converter needs to talk to the BMS to make sure batteri
9.
by janosch_123 1y ago
I built my own electric cars and calculated if this would be worth it. Roof of car is curved and you get the conversion losses (needs to be bumped to 400V to charge batteries). You add a lot of complexity for marginal gains. Peak time you g
10.
by janosch_123 1y ago
Excellent! I lived on a boat like this for many years and never knew about the risk of sudden tsunamis. I like that you can go under the trees.
11.
by janosch_123 1y ago
I finished the Spanish course many years ago (is finishing still possible?) Thanks for reminding me it had page translations, I did a few of those and enjoyed it! Shame it went.
12.
by janosch_123 1y ago
I build my own electric cars and a family friend asked me: Do electric cars still need a gearbox? The question is excellent, because many people think you can just skip the transmission altogether and drive the wheels directly from the moto
13.
Do electric cars need a gearbox?(youtube.com)
3 points by janosch_123 1y ago|1 comments
14.
by janosch_123 1y ago
If's to the top as guard statements. Add asserts to the end of the function too. Loop's can live in the middle, take as much I/O and compute out of the loop as you can :)
15.
by janosch_123 1y ago
I am quite happy with this to be honest - I am hoping for a viral post of course, but I do get noise out of it and (previously) strangers are looking at what I do. Like, how else should it work? There is of course always Google Ads but that
16.
by janosch_123 1y ago
In 4 months I published: - 22 YouTube videos - two LinkedIn posts a week It has to be said that I was well plugged in to niche forums and subreddits. Now I have: - 100 signups - 28 demo completions - 500 subscribers on Y
17.
by janosch_123 1y ago
Oh of course the investor buys $75 of debt for $73, I get it now. I somehow had it in my head the other way around that he can borrow $75 for $73 which wouldn't make sense. Thank you.
18.
by janosch_123 1y ago
I didn't understand this section, why would they pay $73 for $75 and where do the $25 come from? "Investor Economics: Assume a $100 BNPL loan. $25 is paid upfront by the Consumer, so an Investor pays $73 for a $75 loan, discounted
19.
by janosch_123 1y ago
excellent, this also worked on ChatGPT4o for me just now
20.
by janosch_123 1y ago
Congrats to Anthony and the team! What an amazing milestone.
21.
by janosch_123 1y ago
Very cool, I thought about this when testing regenerative braking parameters on the electric cars I put together. I ended up just spinning the motor with a hand drill and later fine tuning in an empty car park. Your solution is much better
22.
by janosch_123 1y ago
Not taking payments yet, ETA was Q1 but it's slipping to Q2 as my day job has kept me busy You can sign up interest and I will send you an email when it's ready.
23.
by janosch_123 1y ago
Thank you means a lot :)
24.
by janosch_123 1y ago
I am sharing what I learnt building electric cars. On YouTube: https://youtube.com/@foxev-content In a learning app: https://foxev.io/academy/ On a physical board where people can explore electric car
25.
by janosch_123 2y ago
Replacing the whole pack is the way to go in battery replacement. Key problem is the battery management system needs to send exactly the same messages as the previous one and at the same time handle the new cells correctly. Someone would ha
26.
by janosch_123 2y ago
Filtering I haven't seen, but I am sure some manufacturers heavily sanitise their output. Taking a log and annotating the values while opening the window, stopping and starting the car is exactly how you go about reverse engineering co
27.
Everything I learnt about the CAN bus from building cars(youtube.com)
6 points by janosch_123 2y ago|3 comments
28.
by janosch_123 2y ago
A (hopefully) concise & practical introduction: 2 min theory followed by 2 min of listening to an existing network followed by 2 min of common pitfalls when building your own network. I built my own electric cars from 2018 - 2023 and am
29.
by janosch_123 2y ago
Super interesting, message me on hello@foxev.io if you want. Stack was leaf batteries, motor & inverter with our own gearbox modification (swapped direction), inverter with Openinverter.org Tesla model S A/C charger, Tesla DC/
30.
by janosch_123 2y ago
Putting content in the right order and hitting the right abstraction level. Keeping the reader/user in the zone between being bored and overwhelmed while you teaching them, without knowing something about them (only data as feedback if

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