Setting up WIFI and SSH of 8-10 RPis in classroom

[alkopop79]

I'm planning a Raspi workshop for beginners. The attendees would first use a screen and a USB keyboard to set up the Pi - such as the username, password, WIFI - then they'd set up SSH with their laptop or tablet. I wonder, would there be any difficulties setting up this many devices that all connect to the same WIFI router? Has anyone got any experience teaching with the Pi?

[DougieLawson]

Take a look at PiNet.

https://www.raspberrypi.org/raspi-ltsp-is-now-pinet/
http://pinet.org.uk/

[alkopop79]

Take a look at PiNet.

https://www.raspberrypi.org/raspi-ltsp-is-now-pinet/
http://pinet.org.uk/

Thank you!

[cpc464]

I don't think 10 pis on one router would be any problem.

Instead of using laptops, why not get the students to ssh into each other's pis from their own pis.

If you see what I mean.

[allfox]

Greetings,

I think you need a good wireless router. By good, I mean it's better to have multiple antennas and works at 5 GHz.

I'm using a Netgear router to share Internet with friends, here is a FAQ from Netgear: http://kb.netgear.com/app/answers/detai ... wmanycomps

Code: Select all

How many computers or devices can be connected wirelessly to a router at the same time?
Any number of devices can be connected wirelessly to the router; however, performance might noticeably decrease with each additional device.  Three to five devices should be able to use the same wireless connection without a noticeable decrease in network responsiveness.

So I think 10 devices need more performance from router.
For wireless, more "free air time"(the time slice in which no one is transmitting via that frequency) gives better performance, and 5 GHz is usually quieter than 2.4 GHz.
And with multiple antennas, the router is able to receive while is transmitting. (one antenna for receiving, another for transmitting, at the same time)

[Can-Toi]

Greetings,

I think you need a good wireless router. By good, I mean it's better to have multiple antennas and works at 5 GHz.

I'm using a Netgear router to share Internet with friends, here is a FAQ from Netgear: http://kb.netgear.com/app/answers/detai ... wmanycomps

Code: Select all

How many computers or devices can be connected wirelessly to a router at the same time?
Any number of devices can be connected wirelessly to the router; however, performance might noticeably decrease with each additional device.  Three to five devices should be able to use the same wireless connection without a noticeable decrease in network responsiveness.

So I think 10 devices need more performance from router.
For wireless, more "free air time"(the time slice in which no one is transmitting via that frequency) gives better performance, and 5 GHz is usually quieter than 2.4 GHz.
And with multiple antennas, the router is able to receive while is transmitting. (one antenna for receiving, another for transmitting, at the same time)

I don't think 10 RPi's + 10 laptops issuing commands over ssh are going to be much trouble for any half decent router.

[allfox]

I don't think 10 RPi's + 10 laptops issuing commands over ssh are going to be much trouble for any half decent router.

I haven't tried that, I don't own that much Pis. Maybe OP could try with an existing router, if it's slow, then get another one.

I agree SSH won't use much bandwidth, but it need responsiveness. It's annoying when screen can't catch keyboard.