fest

13 ms·

121.
by fest 4y ago
I've heard a story where somebody tried to automate some woodworking equipment with Arduino, bare optical encoders and microswitches instead of more rugged sensors. Predictably, the machine was constantly broken (a loose solder joint
122.
by fest 4y ago
Yeah, and once you solve the issue of EMI/EMC compliance for generic applications (that is, expanding your market appeal to be large enough to sustain a hockeystick growth VCs expect)- you basically end up with a PLC, which means you n
123.
by fest 4y ago
Me neither. In industry, Arduino is almost an expletive- mostly associated with projects where someone is trying to use the hardware in a way that's not actually fulfilling an underspecified set of requirements, or where someone has st
124.
by fest 4y ago
Exactly. Why purchase a new roof ventilator for 150EUR if you can spend 1000EUR for a small lathe and fix the ventilator that was broken?
125.
by fest 4y ago
From what I've heard- 2x4 is actually closer to 1.5x3.5" /s
126.
by fest 4y ago
There is not a particular interest rate discount tied to this factor- once negotiated, it becomes a part of agreement. And negotiating this requirement beforehad would to submit another mortgage application. I don't think any banks her
127.
by fest 4y ago
Banks frame it as "it's one of the factors used by our opaque black box algorithm to determine your rate". To find out the exact weight of every factor beforehand, I would have to submit N applications, processing of which is
128.
by fest 4y ago
The mortgage rate calculation is intentionally opaque (at least the bank clerks lead you to believe that) and it becomes just one of a multitude of criteria to evaluate my risk of default (and the bank having an advance estimation of any ch
129.
by fest 4y ago
My Swedbank mortgage agreement even goes as far as to require that I use my account with them as the primary salary account.
130.
by fest 4y ago
Agreed on RTK cost. Two RTK receivers cost about the same as a commercial robot lawn mower. I have half-finished contraption on my garage desk, consisting of hoverboard electronics and motors (cheapest battery, motor, power electronics comb
131.
by fest 4y ago
Also note the presence of US made FLIR Tau2 thermal imager. Reportedly, it can also be equipped with Israeli made payloads: http://www.airwar.ru/enc/bpla/orlan10.html
132.
by fest 4y ago
I have seen a price of 55M roubles for the whole system (~600k EUR): https://zakupki.kontur.ru/0195400000221000058
133.
by fest 5y ago
I use either monochrome SSD1306 based OLEDs for devices where display is more of a convenience than requirement. For nicer things, 2-3" IPS displays retail around this price, e.g. https://www.waveshare.com/2inch-lcd-mod
134.
by fest 5y ago
What other filesystems have checksums for data? Last time I looked, after a silent SSD failure that I only noticed because some .so files were affected, the only options were btrfs and reiserfs (I think ZFS required a custom kernel at that
135.
by fest 5y ago
If the board layout permits it, you can inspect the outside balls around the perimeter- if they are fine, the inside ones will most likely be fine as well. Sometimes, a small piece of front-surface mirror can be used to inspect the sides o
136.
by fest 5y ago
To save somebody else a Google search: taz is a left-leaning daily newspaper in Germany, and kommune 1 was a student community against conservative thought.
137.
by fest 5y ago
Same experience here: this board[0] was hand-placed and soldered in a toaster oven by essentially opening the oven door when peak reflow temperature of the paste I was using was reached. Additional aside- I very much prefer Loctite GC paste
138.
by fest 5y ago
I bricked my system once due to not reading release notes (but that was closer to 2010 than 2020). Release notes were kind enough to outline solution for systems broken due to not reading the release notes. However, I stopped using arch mai
139.
by fest 5y ago
Indeed, it's still very much alive in European industrial automation scene. The ladder logic lends itself well for majority of industrial automation problems (e.g. turn on the motor until the part triggers a sensor, then activate a pne
140.
by fest 5y ago
I was bitten by this as well, luckily I was setting up ufw after docker (and was really surprised that dockerized services showed up in port scan). To be fair, it did not look to me that docker intentionally punched holes in firewall- it pu
141.
by fest 5y ago
For those in Europe, a similar medication is sold under the Tabex brand name. The active ingredient seems to be different (cytisine) but the effect is the same: no satisfaction from cigarettes, just the bad smell/taste plus some mild s
142.
by fest 5y ago
I found an excuse to learn PIO in sampling linear CCD sensor. The gist of it is: sensor needs accurate (us) shutter signal, then a strobe on another signal to start clocking the data out. On each clock you'd like to acquire an ADC sam
143.
by fest 5y ago
Ttgo Esp32 module with LCD (or was that an OLED?) is my go-to solution for one-offs and quick prototypes. Previously it was stm32, but I found myself fiddling with inconsistent SDK (ST's HAL) and myriad of configuration options for per
144.
by fest 5y ago
It's not that some of those are not affected by the shortage.
145.
by fest 5y ago
TI DC-DC switcher IC in one of my designs cost about 0.7EUR before this. For current production batch we had to buy it for around 22EUR (qty 100).
146.
by fest 6y ago
There's also this recent DIY project: laser confocal microscope which also seems to be a fun build: http://www.gaudi.ch/GaudiLabs/?page_id=652 Laser confocal microscope seems to be a little more relatable/les
147.
by fest 6y ago
This account details on what you'd go through if you got one https://mobile.twitter.com/nanographs
148.
by fest 6y ago
That's a brilliant insight. I have also seen it in the attitude of some CEOs of USSR vintage w.r.t to company culture.
149.
by fest 6y ago
Allegedly, similar logic was applied to development of weapons- the designed lifetime of some was deliberately capped at a few hundred rounds because "soldiers won't last longer".
150.
by fest 6y ago
In some countries (Latvia being the example I'm familiar with), water from artesian wells is considered a limited resource and it's taxed.

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