fest

31 ms·

331.
by fest 9y ago
The attitude stabilization- yes, I would agree. But the development mostly seems to concentrate around higher level, position and navigation controllers and there is a lot of complex floating point math going on there.
332.
by fest 9y ago
How large is ARM market share in automotive? From outsider perspective, it looks to be concentrated in entertainment subsystems, the real time control still seems to be dominated by 16/32 bit non-ARM microcontrollers (Renesas, Toshiba,
333.
by fest 9y ago
Ardupilot team has stopped firmware development for APM1/APM2 boards in 2015. I wouldn't advise buying it now with intent to work on stabilization firmware.
334.
by fest 10y ago
A guy in local hackerspace is building just that: https://hackaday.io/project/19035-zerophone-a-raspberry-pi-s...
335.
by fest 10y ago
I use T430s and would recommend getting a regular T430 instead of T430s. The height difference is minimal but you can get a 9 cell battery for T430.
336.
by fest 10y ago
Interesting, adding EFM32 to the ever-growing list of things to tinker with.
337.
by fest 10y ago
Another interesting language for embedded targets is Ada: http://blog.adacore.com/tag/STM32
338.
by fest 10y ago
The newer ST's HAL library is not that bad, and is definitely not tied to their IDE. The STM32CubeMX has pretty decent pin and peripheral configuration tool (definitely better than spreadsheet) which generates project skeleton. After t
339.
by fest 10y ago
FLIR recently started selling their low-resolution uncooled sensors in small quantities: * 80x60 resolution for $200 * 160x120 resolution for $240 (doesn't seem to be in stock on Digikey though). I've used the first one- resol
340.
by fest 10y ago
I have the opposite impression: it seems to me that FIA regulations are making the cars pretty much the same for all teams.
341.
by fest 10y ago
No, I have not- thanks for the pointer! I guess by this time, there really is an "Awesome-<insert ML topic here>" list for everything :)
342.
by fest 10y ago
I have a project to get to know something about ML in computer vision. The project I'm doing that with is OCR of a noisy, low-resolution image (~32x16) Main problems: * Since the resolution is very low, I found it hard to use tradition
343.
by fest 10y ago
In Latvia you either have to buy a property worth more than 250kEUR, invest more than 35kEUR in a business or deposit more than 280k. From my standpoint, the biggest risk is a certain neighbour country with historical appetite for "pre
344.
by fest 10y ago
It's even more annoying when Windows does succeed interpreting data coming from device and cursor starts moving around and clicking randomly.
345.
by fest 10y ago
For my particular case (OCR for limited set of strings) I found using caffe much easier than tensorflow (even when using tf-learn).
346.
by fest 10y ago
Thanks for mentioning xpra. I have always wanted something like that but hadn't ever thought about searching for "screen for X11".
347.
by fest 10y ago
Have you measured the average power draw of this box? Does the hardware support wake from LAN traffic sent to it?
348.
by fest 10y ago
This is an interesting combination of wheels and more articulated actuators (er, limbs?). It certainly solves most of stability problems for a typical inverted pendulum configurations (cornering, obstacles of different height, lowering weig
349.
by fest 10y ago
Do you have any suggestions on deciding where to draw the line for simulation? It seems that you are suggesting instruction-level simulation of the same binary which is going to be deployed, correct? What is the performance you're usua
350.
by fest 10y ago
Adding a few more: * Not giving up when your errors do lead to physical damage. Repair the heat exchange radiators that froze because you didn't test what happens when outside temperatures drop. Change the timing belts that snapped bec
351.
by fest 10y ago
You can do that on Nimbix/Jarvice. Submit a Docker image, start batch job and get an e-mail once it's finished. 4 core 32GB RAM machine with K80 costs ~$1.06 there.
352.
by fest 10y ago
Yes, that's a very good idea, especially if code uses lot of floating point operations.
353.
by fest 10y ago
Agree. There is a lot to be gained from using C++ with absolutely no or imperceptible overhead. I guess the only common embedded systems I would think twice before using C++ nowadays is 8051 and the very low end AVR/PIC (which can have
354.
by fest 10y ago
Awesome guide on how to get the best out of C++ on embedded systems. One thing I would add is: enable all the warnings you can and make them errors: "-Wall -Wextra -Wpedantic -Werror". I know it's hard to do in practice (who
355.
by fest 10y ago
But then a competitor comes along, doing the same thing with vastly less complex model and capable of offering cheaper/faster service because of that.
356.
by fest 10y ago
Does anyone use Tensorflow models in C++ applications? Is it possible to build Tensorflow as static or shared lib?
357.
by fest 10y ago
Few years ago in garage48 our team built a robot that pees user-submitted image in snow: https://youtu.be/QaDHyTXmnsU
358.
by fest 10y ago
I can't check the schematics on the phone but does it really lack any GPIO expansion connector? The main reason I built a DIY-laptop-like-contraption[0] was to have a self-contained box with various low level interfaces conveniently ac
359.
by fest 10y ago
selinux is enabled by default on Android (since 5.0 or so) and if I recall correctly, is required for google to certify an Android device. IMO it definitely reduces privilege escalation attacks there. I wonder if Apple uses similar MAC syst
360.
by fest 10y ago
Yes, MODBUS is usually used between locally connected devices (but not always for status, often also to control motors and valves). However, it's the thing everyone in industry knows how to use so it will likely be misused to send ever

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