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by helpme
Wed Jan 20, 2021 11:07 pm
Forum: Raspberry Pi 400
Topic: Pros and cons of Rpi400 vs Rpi4 custom-made PC
Replies: 13
Views: 1296

Pros and cons of Rpi400 vs Rpi4 custom-made PC

Rpi 400 is based on Rpi4. One can also build custom-made desktop PC using Rpi4 which comes with 8G Ram with cheaper price. Why not use Rpi 4 instead?

What are the pros and cons of Raspberry Pi 400 versus custom-made Raspberry Pi 4 as desktop PC replacement?
by helpme
Tue Sep 15, 2020 1:48 am
Forum: General discussion
Topic: Is raspberry pi 4 8G good enough to watch online videos?
Replies: 7
Views: 701

Is raspberry pi 4 8G good enough to watch online videos?

Is raspberry pi 4 8G good enough to watch online videos like Youtube, Daily motion? Do I need heat-sink or fan for that?
I would like to run Ubuntu on Rpi to use it as desktop replacement. Is that advisable?
by helpme
Fri Jul 10, 2020 1:03 am
Forum: Other programming languages
Topic: Anyone using Rust on a PI ?
Replies: 259
Views: 55395

Re: Anyone using Rust on a PI ?

Which cross-compilers do you folks here use to conveniently compile code developed on PC to Rpi?
by helpme
Tue Jun 30, 2020 11:13 am
Forum: Ubuntu
Topic: For server applications, is Ubuntu server better than Raspbian on rpi 4?
Replies: 14
Views: 12057

Re: For server applications, is Ubuntu server better than Raspbian on rpi 4?

I was wondering whether Ubuntu server 20.04 would be a better choice than raspbian if one were running server applications on Raspberry pi 4. Anyone tried Ubuntu server on raspberry pi 4? How was the experience? What problems did you encounter? Slow speed? Is raspbian better? I installed Focal Foss...
by helpme
Sat Jun 27, 2020 12:58 am
Forum: Ubuntu
Topic: For server applications, is Ubuntu server better than Raspbian on rpi 4?
Replies: 14
Views: 12057

Re: For server applications, is Ubuntu server better than Raspbian on rpi 4?

any rpi os, can do the job, it's just a matter of preference. for ubuntu you need ethernet/lan & gui stuff kinda sucks, so best if you intend headless/ no gui. for mine i've gone with dietpi os. Can Rpi Wifi work in Ubuntu? This is a concern. I believe most rpi applications are headless since R...
by helpme
Sat Jun 27, 2020 12:26 am
Forum: Ubuntu
Topic: For server applications, is Ubuntu server better than Raspbian on rpi 4?
Replies: 14
Views: 12057

For server applications, is Ubuntu server better than Raspbian on rpi 4?

I was wondering whether Ubuntu server 20.04 would be a better choice than raspbian if one were running server applications on Raspberry pi 4.

Anyone tried Ubuntu server on raspberry pi 4? How was the experience? What problems did you encounter? Slow speed? Is raspbian better?
by helpme
Sun Sep 08, 2019 1:49 pm
Forum: General discussion
Topic: Good reasons to buy the latest Rpi 4 with 4G RAM?
Replies: 34
Views: 6249

Good reasons to buy the latest Rpi 4 with 4G RAM?

Thinking of whether to buy the latest Rpi 4 with 4G RAM. What are some good reasons to buy the latest Rpi 4? What are some applications that can only be handled by the latest Rpi4 and cannot be handled by older versions?
by helpme
Sun Aug 27, 2017 7:02 am
Forum: Raspberry Pi Desktop for PC and Mac
Topic: What is the purpose of Desktop Debian x86 image?
Replies: 13
Views: 7990

What is the purpose of Desktop Debian x86 image?

I just saw this new Rasbian x86 image that can be installed onto PC. I don't quite catch the purpose of this image given that it cannot talk to outside world through hardware interfaces. I am trying to understand its applications. Can anyone advise?
by helpme
Fri Aug 25, 2017 6:22 am
Forum: Raspberry Pi OS
Topic: Is python 3 the default python version in Raspbian Stretch?
Replies: 3
Views: 14659

Re: Is python 3 the default python version in Raspbian Stretch?

klricks wrote:
Fri Aug 25, 2017 6:12 am
helpme wrote:
Fri Aug 25, 2017 5:59 am
I have been longing for this to happen. is python 3 now the default version in Stretch?
What do you mean by default?
Python 2.7.13 and and 3.5.3 are both installed.
Default means when I type "python" at command line, v3 is used and not v2.
by helpme
Fri Aug 25, 2017 5:59 am
Forum: Raspberry Pi OS
Topic: Is python 3 the default python version in Raspbian Stretch?
Replies: 3
Views: 14659

Is python 3 the default python version in Raspbian Stretch?

I have been longing for this to happen. is python 3 now the default version in Stretch?
by helpme
Fri Aug 25, 2017 5:46 am
Forum: Raspberry Pi OS
Topic: What are some reasons to upgrade from jessie to stretch?
Replies: 9
Views: 4107

What are some reasons to upgrade from jessie to stretch?

What are some new features in stretch that makes it compelling to upgrade from jessie to stretch?
by helpme
Wed Aug 23, 2017 11:54 pm
Forum: Bare metal, Assembly language
Topic: What are situations to use bare metal when python is so much easier?
Replies: 74
Views: 18957

Re: What are situations to use bare metal when python is so much easier?

That has to be the weirdest comparison ever, it's actually hard to find common ground to even compare anything :-) Anywhere you can run python you certainly won't be baremetal programming. You can run python on Raspberry Pi, yet this is a forum for discussing baremetal programming on Raspberry Pi. ...
by helpme
Wed Aug 23, 2017 12:51 pm
Forum: Bare metal, Assembly language
Topic: What are situations to use bare metal when python is so much easier?
Replies: 74
Views: 18957

Re: What are situations to use bare metal when python is so much easier?

That has to be the weirdest comparison ever, it's actually hard to find common ground to even compare anything :-) Anywhere you can run python you certainly won't be baremetal programming. You can run python on Raspberry Pi, yet this is a forum for discussing baremetal programming on Raspberry Pi.
by helpme
Wed Aug 23, 2017 6:13 am
Forum: Bare metal, Assembly language
Topic: What are situations to use bare metal when python is so much easier?
Replies: 74
Views: 18957

Re: What are situations to use bare metal when python is so much easier?

Wouldn't it make more sense to use a cheaper 32-bit MCU like STM32 for real-time guarantees? Possibly, but how many 32-bit MCU's have 1080p HDMI output and 512MB of RAM for under £10 including tax and postage? (Pi Zero) Driving the video output via framebuffer in bare metal is pretty simple. Ahh......
by helpme
Wed Aug 23, 2017 6:03 am
Forum: Bare metal, Assembly language
Topic: What are situations to use bare metal when python is so much easier?
Replies: 74
Views: 18957

Re: What are situations to use bare metal when python is so much easier?

People who write bare-metal often want to meet precise timing requirements. Raspbian is a pre-emptive multitasking desktop system and CPython employs automatic garbage-collection so you don't get any realtime guarantees with both. ghans Wouldn't it make more sense to use a cheaper 32-bit MCU like S...
by helpme
Wed Aug 23, 2017 5:55 am
Forum: Bare metal, Assembly language
Topic: What are situations to use bare metal when python is so much easier?
Replies: 74
Views: 18957

Re: What are situations to use bare metal when python is so much easier?

Reasons: Speed. Python is an script language and relatively slow (but better than some). Raw code works at full speed. Boot time. No OS to load means boot times are a few seconds. Minimal code means less to cause issues - it is only your code that is running, so you know what it is (should be) doin...
by helpme
Wed Aug 23, 2017 12:30 am
Forum: Off topic discussion
Topic: What are some useful home applications with Raspberry Pi to interest kids?
Replies: 4
Views: 2173

What are some useful home applications with Raspberry Pi to interest kids?

What are some problems you encounter at home which can be solved with the Raspberry Pi? I am searching for problems so that I can create solutions to interest my kids in engineering :)
by helpme
Wed Aug 23, 2017 12:28 am
Forum: Bare metal, Assembly language
Topic: What are situations to use bare metal when python is so much easier?
Replies: 74
Views: 18957

What are situations to use bare metal when python is so much easier?

Python code is readable and there are lots of ready libraries to use without reinventing the wheel. What are applications or situations to use bare metal code when python is so much easier?
by helpme
Sat Aug 19, 2017 12:23 am
Forum: Off topic discussion
Topic: What are some interesting RPi projects on Youtube?
Replies: 0
Views: 887

What are some interesting RPi projects on Youtube?

I would like to start a thread that collects interesting RPi projects on Youtube. Please share when you encounter any interesting projects. Even better if the interesting project is a money-making one :)

Thank you.
by helpme
Fri Aug 18, 2017 10:47 am
Forum: General discussion
Topic: What are some RPi development kits to interest kids in robotics and engineering?
Replies: 1
Views: 519

What are some RPi development kits to interest kids in robotics and engineering?

I want to interest my kids to robotics and engineering. What are some development kits to buy for this purpose?

I just found this.
https://www.dexterindustries.com/gopigo3/

Can forummers recommend any others? Price is not an important issue for the moment.
by helpme
Wed Aug 16, 2017 10:58 am
Forum: Python
Topic: How to combine these 3 lists into a single list of dictionary?
Replies: 7
Views: 1488

Re: How to combine these 3 lists into a single list of dictionary?

elParaguayo wrote:
Wed Aug 16, 2017 10:56 am
EDIT: Gah - by the time I'd managed to type a nice dictionary comprehension you'd found the answer!
Your solution is most welcome. Your solution may be better than mine. Thanks for the help!
by helpme
Wed Aug 16, 2017 10:57 am
Forum: Python
Topic: How to combine these 3 lists into a single list of dictionary?
Replies: 7
Views: 1488

Re: How to combine these 3 lists into a single list of dictionary?

EDIT: We've both done the same thing except you've used a dictionary comprehension which is a bit shorter but often harder to understand. How does this work for you? feature1_list = ['name1', 'name2', 'name3'] feature2_list = [1,2,3] feature3_list = [4,5,6] dictionary_list = [] for f1,f2,f3 in zip(...
by helpme
Wed Aug 16, 2017 10:49 am
Forum: Python
Topic: How to combine these 3 lists into a single list of dictionary?
Replies: 7
Views: 1488

Re: How to combine these 3 lists into a single list of dictionary?

I found the solution with the help of a guru.

Code: Select all

dict_list = [{'feature1': f1, 'feature2': f2, 'feature3': f3} for f1, f2, f3 in zip(feature1_list, feature2_list, feature3_list)]
by helpme
Wed Aug 16, 2017 10:26 am
Forum: Python
Topic: How to combine these 3 lists into a single list of dictionary?
Replies: 7
Views: 1488

How to combine these 3 lists into a single list of dictionary?

I have been grappling with this problem for some time. I have 3 python lists. feature1_list = [name1, name2, name3] feature2_list = [1,2,3] feature3_list = [4,5,6] I would like to combine these 3 lists into a list of dictionary that looks like this; dictionary_list = [{'feature1': 'name1', 'feature2...

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