ROS on Raspberry PI...
 

ROS on Raspberry PI 3B+ progress report.  

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soumitra
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2019-08-12 6:23 am  

@spyder

I will get back with the code by thursday

Am now at rio de janerio... 😎 vacation


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Spyder
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2019-08-12 7:23 am  

@sdey76

That would be awesome !

Thank you !


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soumitra
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2019-09-23 5:22 pm  

Some days are really tough! The rpi3 sd card not responding at all!!! Not even reading in laptop!!

Cant imagine to do everything once again from zero!!!!!!!😥😥

Any saviour please


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Spyder
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2019-09-23 6:29 pm  

@sdey76

You say it's not reading in the laptop. Is the laptop at least acknowledging the existence of the card ?


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soumitra
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2019-09-24 3:17 pm  

@spyder

Hiii spyder

Yes it is detecting sd card but asking to format

Not reading any data

There is a crack on surface of card, i guess rp3 gets heated up and may be consequences 

Regards


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Spyder
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2019-09-24 5:06 pm  

@sdey76

Well, since it's asking for a format, the good news is that it may not be completely toasted

The bad news is a crack on an SD card. Physical damage is physical damage. You can't know how far the damage extends tho, it could be superficial, or it could be critical

One of my favorite tools used to be GetDataBack. I had it on a bootcd, and it worked like a champ on windows. The docs say it works on linux, but, I've never had to use it on linux. 


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soumitra
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2019-09-25 6:41 am  

@spyder

Thanks

I gave up on the sd card and went on...

4 hours of midnight oil burnt! Moved to jetson nano and built the packages again and its running!! Feeling nice now !

15693900050697555184918095147370


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Spyder
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2019-09-25 8:08 am  

@sdey76

COOL !

4 hours is definitely less time than it would have taken to do data recovery on even a non-cracked sd card 😉

So, would you be so kind as to fill us in on exactly what steps you took to make this magic happen ?

Pretty please 

With sugar on it


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soumitra
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2019-09-25 1:22 pm  

@spyder

Hii spyder

No recovery possible,  just went on with a new SD card and wrote all packages once again...

 


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Spyder
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2019-09-25 2:45 pm  
Posted by: @sdey76

No recovery possible

Right, cracked card, no data, I got that part

Posted by: @sdey76

new SD card and wrote all packages

This is the part I'm asking about, the part where it worked

This post was modified 3 weeks ago by Spyder

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soumitra
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2019-09-25 5:41 pm  

@spyder

Hii

1. Jetson nano page go to the startup process

 

https://developer.nvidia.com/embedded/learn/get-started-jetson-nano-devkit

 

2. Download the image file for Windows/ linux

3. Download etcher

4 burn the new SD card on etcher

 

Next you download ROS MELODIC as it is ubuntu 18.04 in the jetson pack image from ROS.org

Install ROS 

Then you build your packages as per your requirements

 

 

 

 


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Spyder
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2019-09-25 6:02 pm  

@sdey76

Ah. So what yer saying is "build from scatch" instead of trying to use their prebuilt images ?

I've been trying to avoid that due to ros consistently failing on the install

This post was modified 3 weeks ago by Spyder

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soumitra
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2019-09-26 2:35 am  

@spyder

You can chk this Resource for ros

Getting Started with ROS on Jetson Nano


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Spyder
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2019-09-26 5:17 am  

That looks like the image I labeled "jetson-original", but this one is 4 months newer, so I dl'd it, and it's exploding now. I'll just take that "jetson-original" disk and nuke & pave and then see how far I can get with the ROS before I reach a stopping point. But, since you were successful only yesterday, I'm hoping that things (repositories, which is where I usually run into problems) haven't changed since then

We shall see how this goes... I suppose

45 minutes to unpack VIA NAS, which I built on a Pi3 cuz I thought that was a good idea.

I should be glad it's not a 64G image 


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Spyder
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2019-09-26 7:13 am  

LOL !

Ran into a stopping point while trying to format the dang sd card. Stoopid windoze didn't wanna recognize the disk

USB says  : "I think something just got plugged in"

Windoze says : "I think it might be a storage device of some kind, but I'm not really sure, it could be an electric  frog"

I says : "diskpart... clean"

Windoze says : "Oh, okay, it's a 64GB sd card, want me to format that for you ?"

I says : "Yes please, if you would be so kind"

Windoze says : "I'm sorry Dave. I'm afraid I can't do that"

I says : "SD Association SD Memory Card Formatter"

Windoze says : "Yes sir. Right away sir !"

I've always felt that beating your computer into submission was a good first step

Wonder where it'll stop next. I can tell right now that this is gonna be fun

This post was modified 3 weeks ago 2 times by Spyder

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