Which Raspberry Pi do I need to use?

April 7, 2024, 13:00

leander.bdn

Hello, I am new to Raspberry and I would like to start working with it. Basically I want to start learning how to use and program it (I already know how to do the electric stuff so I only need to learn the usage and programming of a Raspberry Pi). After learning the basics I want to build a small device, which searches for traffic signs outside my car and displays them onto a small display. So I need a Raspberry Pi that is able to run the camera module and a small rgb display. It would be great if a Raspberry Pi like the Nano or the Zero could do that, sadly I dont really know which Raspberry is made for which purpose. It would be great if someone here could help me so I know which Raspberry I need to buy? PS: I want to program the software in Python if that would be possible. Greetings Leander :)

leander.bdn

My current favorite is the Raspberry Pi Zero 2W because for me it looks like it has a connector für die camera and a hdmi output for the display

k9t33n

It infact does

k9t33n

And the pi zero should work. But I've never heard of the pi nano

leander.bdn

I meant the pico, i’m sorry i usually only work with arduino

k9t33n

Np

leander.bdn

would it also be possible with the pico or do i need to have the zero or better?

k9t33n

The Pico might have problems with a gpio display and I don't think it has a camera cable thing

k9t33n

I suggest the zero. Pico is definitely possible but it's not a full pi and is comparable to a Arduino so it's also not really a learning experience for you. Whereas the zero and up is a full on mini computer

leander.bdn

Which zero should I buy? As I saw on google there are multiple ones (like the zero, zero 2w and more)

k9t33n

2w ig

k9t33n

One second

k9t33n

Yes

k9t33n

2w

leander.bdn

okay thank you, do you think that the 2w has enough processor power to recognize traffic signs with a AI in python?

k9t33n

Hmm maybe not

k9t33n

I thought that was done via API sorry

k9t33n

Its ram really that's the bottleneck

k9t33n

Maybe a pi 3B would be better. Its a little more expensive and bigger and uses more power but you could self host the AI then

leander.bdn

I think it also would be possible with an API but sadly in germany mobile internet connection is kinda expensive and it isnt the best so I think it isnt perfect to use an API when I have the finished device inside my car

leander.bdn

Ill have a look into it, thank you very much

leander.bdn

Is it the one with 1024MB of RAM and the ARM Cortex-A53 as a processor?

k9t33n

3B, no. That's probably the zero

k9t33n

What does it look like? Can you send a screenshot?

leander.bdn

thats the one I found

leander.bdn

the website is on german, if you need any translation just tell me

k9t33n

No but can you click on another of those pictures?

k9t33n

Nvm

k9t33n

That's the pi 3

k9t33n

So yeah

leander.bdn

Is there a difference between die Pi 3 and the Pi 3B?

k9t33n

One second

k9t33n

I know pi 3 doesn't have ethernet which pi 3b does

leander.bdn

But do they both have WLAN?

k9t33n

Yes

leander.bdn

Okay so I could just buy the Pi 3 and use WLAN instead of ethernet?

k9t33n

Its speed and ram as far as I could find

k9t33n

And ethernet

k9t33n

You could yes

leander.bdn

Okay, thank you very much for your help :)

k9t33n

NP

k9t33n

i found it. this is a snapshot of 1600x1200 30fps on a pi zero

leander.bdn

looks pretty good, I think it should be possible to recognise street signs with the camera

k9t33n

Yes

leander.bdn

Do you maybe know how difficult it is to show a traffic sign on a lcd display?

k9t33n

What's the LCD display resolution?

leander.bdn

Oh my bad it’s a OLED display, it has a resolution of 128x64 pixels

leander.bdn

It it this one