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by Heater
Thu Feb 27, 2020 2:39 pm
Forum: General discussion
Topic: Stability of raspberry pi with big disks.
Replies: 3
Views: 165

Re: Stability of raspberry pi with big disks.

I've been messing with this for half a year now. but it has proven to be impossible to get to work reliable. As in crashes and sometimes messes up my 30Tb filesystem on a weekly basis. That is not what I'm used to with Linux/raspberry pi computers. Not me either. Admittedly I have never loaded a Pi...
by Heater
Thu Feb 27, 2020 12:19 pm
Forum: General discussion
Topic: Undervoltage RasberryPi won't boot
Replies: 5
Views: 127

Re: Undervoltage RasberryPi won't boot

It all adds up. I bet there is skimpy USB cable in use as well dropping the volts.
by Heater
Thu Feb 27, 2020 10:39 am
Forum: General discussion
Topic: Undervoltage RasberryPi won't boot
Replies: 5
Views: 127

Re: Undervoltage RasberryPi won't boot

Not to mention you are trying to power a Pi and an UNO from the same laptop USB port as far as I can tell. That sounds totally inadequate to me.
by Heater
Thu Feb 27, 2020 10:17 am
Forum: C/C++
Topic: Unknown Target Error : Raspberry pi
Replies: 2
Views: 73

Re: Unknown Target Error : Raspberry pi

Clearly you have not got the correct platform target set when you compile that with gcc. I suggest you read all the docs in that repository. They have makefiles and such for all kind of targets, Windows, posix, etc. I suspect you want to build it for the posix target for use on the Pi. If you can't ...
by Heater
Thu Feb 27, 2020 8:40 am
Forum: General discussion
Topic: Autonomous Car
Replies: 15
Views: 472

Re: Autonomous Car

I can't be the only person who finds the opening post suspiciously spam-like, can I? I suspect that our OP is not the teacher but the student. A student stuck on a project and wanting to hide the fact they are asking for homework help. If they have the wits I gave them a solution on a plate. My apo...
by Heater
Wed Feb 26, 2020 11:29 pm
Forum: Python
Topic: event detection response
Replies: 6
Views: 152

Re: event detection response

I presume that is Python we are looking at. In which case I would say you are doing pretty well. Python is slow as molasses for this kind of thing. Suggest working in C/C++, Pascal, Rust or whatever compiles down to real executatable instructions. If that is not fast enough there are ways to squeeze...
by Heater
Wed Feb 26, 2020 5:01 pm
Forum: General discussion
Topic: Autonomous Car
Replies: 15
Views: 472

Re: Autonomous Car

Is what spam? Well, you did link us to the front page of a company that wants to sell us a 2000 dollar robot. That smells a bit spammy don't you think? I trust Ubiquity ... That's OK. It's just that I don't. Never heard of them before. To reiterate, I'm not suggesting anyone is up to no good here. ...
by Heater
Wed Feb 26, 2020 4:27 pm
Forum: General discussion
Topic: Autonomous Car
Replies: 15
Views: 472

Re: Autonomous Car

It is possible that the university student majored in political science rather than computer science. Are you suggesting that those that major in political science are not so smart? No, don't answer that. At any rate, I've got a robotic toy car project from long ago that I've been wanting to do som...
by Heater
Wed Feb 26, 2020 2:47 pm
Forum: General discussion
Topic: Autonomous Car
Replies: 15
Views: 472

Re: Autonomous Car

Is that SPAM? I loath to direct people to download and install operating system images from an unknown and untrusted source. That is a major security issue. Similarly for any other software. I'm not saying that the Ubiquity guys are up to no good, it's just my stance on computer hygiene. Nice lookin...
by Heater
Wed Feb 26, 2020 8:41 am
Forum: C/C++
Topic: How can I save data at device?
Replies: 2
Views: 117

Re: How can I save data at device?

You can write data to files on the Pi. If you google for "file read write c" you will come to many tutorials on how to do that. You could save your data to a local SQL database like mariadb https://mariadb.org/ (formerly mysql) or https://www.sqlite.org/index.html. AGain there are many tutorials aro...
by Heater
Wed Feb 26, 2020 3:41 am
Forum: General discussion
Topic: Autonomous Car
Replies: 15
Views: 472

Re: Autonomous Car

See OpenCV. A google search for "opencv autonomous car" produces hundreds of hits on exactly this project idea. In fact this: DeepPiCar — Part 1: How to Build a Deep Learning, Self Driving Robotic Car on a Shoestring Budget: https://towardsdatascience.com/deeppicar-part-1-102e03c83f2c is a very comp...
by Heater
Tue Feb 25, 2020 7:02 am
Forum: General discussion
Topic: New Pi 4B v1.2?
Replies: 331
Views: 45068

Re: New Pi 4B v1.2?

As far as I know the foundation is not a charity... Wrong. The Raspberry Pi Foundation is a registered charity in the UK. I should probably stop reading your post at this point. ...I am a consumer giving opinions not for financial benefits, and I say it's a mess. I say it was a silly little mistake...
by Heater
Tue Feb 25, 2020 4:46 am
Forum: General discussion
Topic: Raspberry Pi, Arduino, and Camera issue
Replies: 3
Views: 109

Re: Raspberry Pi, Arduino, and Camera issue

iocane, Could someone refer me to some source of information on the matter. Unlikely because there is no such matter. Or if there is yours is the first time it has shown up. I have been doing exactly that recently, Raspberry Pi camera streamed to the internet via ffmpeg, whilst communicating continu...
by Heater
Mon Feb 24, 2020 6:16 pm
Forum: General discussion
Topic: New Pi 4B v1.2?
Replies: 331
Views: 45068

Re: New Pi 4B v1.2?

I'm disappointed in reading most of those Hackaday comments. What a sluice pipe that has become. Those people do not seem to be into hacking anything any day. Well, unless you count dreaming up bizarre conspiracy theories, factual inaccuracies and abuse to post. In fact, putting my own conspiracy th...
by Heater
Mon Feb 24, 2020 12:59 am
Forum: Other programming languages
Topic: Can pandas and big data be used in web development? If so, what are some websites or projects that do?
Replies: 7
Views: 350

Re: Can pandas and big data be used in web development? If so, what are some websites or projects that do?

I guess none of that question has anything to do with a Raspberry Pi computer.

Might be better to ask on a forum about "pandas" whatever that is, or "big data" whatever that is, or "web development" whatever that is.
by Heater
Sun Feb 23, 2020 7:19 pm
Forum: General discussion
Topic: What is a good replacement for Etcher (ads and ignores privacy)
Replies: 143
Views: 9280

Re: What is a good replacement for Etcher (ads and ignores privacy)

GlowInTheDark, Well, you did notice the Subject line change for this and the last several responses? I don't care about subject line changes. I went back to your last post here and was commenting on that. It said nothing about zip, gzip or pipelines, it spoke of internet services. So please forgive ...
by Heater
Sun Feb 23, 2020 6:43 pm
Forum: General discussion
Topic: To perform single task at a time on raspberry-pi
Replies: 10
Views: 287

Re: To perform single task at a time on raspberry-pi

Thank you sir, for your reply, as you told that ensure that nothing run on machine while running my code....as I am very new to these coding languages and raspberry pi....please tell me how to do that Secondly how to use 'nice' command?? If you are not starting anything on the machine yourself then...
by Heater
Sun Feb 23, 2020 6:37 pm
Forum: General discussion
Topic: What is a good replacement for Etcher (ads and ignores privacy)
Replies: 143
Views: 9280

Re: Unzipping in a pipeline

I'm not the one who is confused here. Granted, this discussion has reached kind of a high level, so the outcome is not surprising. Well, I'm confused. I did not understand what you are talking about. What we want is a nice tool to flash SD cards. You were commenting on internet services. As far as ...
by Heater
Sun Feb 23, 2020 3:07 pm
Forum: General discussion
Topic: What is a good replacement for Etcher (ads and ignores privacy)
Replies: 143
Views: 9280

Re: What is a good replacement for Etcher (ads and ignores privacy)

Can Electron be used that way, like a shared library? I'm not sure. Perhaps it's just a dream of mine. At the end of the day what we have in Electron is the Chrome web browser engine and node.js. Which in turn runs ones application which is just a bundle of HTML/CSS/Javascript/images etc. Ideally o...
by Heater
Sun Feb 23, 2020 2:19 pm
Forum: General discussion
Topic: Getting real time data via different peripheral
Replies: 1
Views: 62

Re: Getting real time data via different peripheral

What do you mean by "real-time"? When people speak of "real-time" systems they mean systems that have guaranteed maximum latency between input and getting an output. Further, that if the specified maximum is ever exceeded that is regarded as a system failure. So what is the maximum latency you are t...
by Heater
Sun Feb 23, 2020 2:08 pm
Forum: General discussion
Topic: What is a good replacement for Etcher (ads and ignores privacy)
Replies: 143
Views: 9280

Re: What is a good replacement for Etcher (ads and ignores privacy)

Electron is a massive, literally, PITA. Yes Electron and hence Etcher is huge. It's the same PITA as downloading and installing a new version of GCC or Clang mind. Hence I say it would be nice if Electron was pre-installed as an OS package, as are C/C++, Python and others. Then a program like Etche...
by Heater
Sun Feb 23, 2020 1:56 pm
Forum: General discussion
Topic: To perform single task at a time on raspberry-pi
Replies: 10
Views: 287

Re: To perform single task at a time on raspberry-pi

How can we prioritize raspberry-pi 3b+model so that if my python code is running then the raspberry-pi should this task(i.e. one task at a time). Since i have to calculate time taken by my code to perform operation. Without prioritizing raspberry -pi, each time my code is taking different time to r...
by Heater
Sun Feb 23, 2020 1:35 pm
Forum: General discussion
Topic: What is a good replacement for Etcher (ads and ignores privacy)
Replies: 143
Views: 9280

Re: What is a good replacement for Etcher (ads and ignores privacy)

I have to take issue with some misinformation going on here: 1) Etcher works perfectly well without a net connection. I just tried it again, no problem. 2) What advertising? I did not see any just now. I think I did see a suggestion for some other Balena product once. Not ideal but, meh, why not. It...
by Heater
Sun Feb 23, 2020 11:17 am
Forum: Python
Topic: Machine and camera object learning on Rasberry pi 4
Replies: 2
Views: 140

Re: Machine and camera object learning on Rasberry pi 4

Of course any such AI/deep leaning/object recognition will be much slower on a Pi than when using a machine with a GPU, like a PC with Nvidia graphics card or an Nvidia Jetson Nano: https://developer.nvidia.com/embedded/jetson-nano-developer-kit but that does not mean it will not work and is not use...
by Heater
Sat Feb 22, 2020 2:29 pm
Forum: C/C++
Topic: interrupt method with pigpio
Replies: 15
Views: 416

Re: interrupt method with pigpio

I think I get what you mean. This seems nice and I'd like that and even tried to do it in that direction. I don't know if you know the pigpio-library, but it seems it doesn't handle it this way. I have never used a library when accessing serial ports from C or C++. I just use the POSIX API built in...

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