Raspberry Pi Forums

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Which cross-compilers do you folks here use to conveniently compile code developed on PC to Rpi?

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Seems like booting from SSD can be done

https://www.tomshardware.com/how-to/boo ... y-pi-4-usb

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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...

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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 Rpi i...

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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?

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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?

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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?

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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.

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I have been longing for this to happen. is python 3 now the default version in Stretch?

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What are some new features in stretch that makes it compelling to upgrade from jessie to stretch?

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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. ...

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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.

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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......

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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...

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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...

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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

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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?

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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.

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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.

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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!

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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(...

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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)]

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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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Intel processors are (a) expensive compared to ARM chips, and (b) power hogs compared to ARM chips. One factor behind the choice of Broadcom is that Eben Upton and some of the others who did the initial work on the Pi work or worked for...Broadcom. Broadcom was generous enough to allow the RPF to b...

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Rpi is really cheap at USD35. Thank you very much. Suppose a competitor wants to launch a similar board. What makes Rpi able to keep it cheaper than its competitor? How does Rpi keep its price so low as USD35?

Search found 124 matches

Re: Anyone using Rust on a PI ?

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

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

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

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

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

What is the purpose of Desktop Debian x86 image?

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

Is python 3 the default python version in Raspbian Stretch?

What are some reasons to upgrade from jessie to stretch?

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

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

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

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

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

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

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

What are some interesting RPi projects on Youtube?

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

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

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

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

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

Re: Why was Broadcom BCM2836 chosen as the CPU for RPi?

How does Rpi keep its price so low as USD35?