Low number of concurrent connected users

Ratna

ThomasG That is disappointing! I am sure, I had more connected (13?) in an earlier version, on RPi 3B. Others have also reported up to 20+. Can you ask your users to connect one-by-one after, waiting till their predecessor appears on the MoodleBox Dashboard (Site administration > Server > MoodleBox > MoodleBox dashboard)?

There is a soft indicator for low voltage - a red button. It appears only if the supply voltage drops.

@Nicolas Isn't it an idea to display the button always and make it change in colour?

Nicolas

FYI: I got 21 WiFi clients during a presentation in July 2019, so you should get approximately the same (see screenshot).

Ratna Isn't it an idea to display the button always and make it change in colour?

Which button? What do you mean exactly?

Ratna

Nicolas Sorry for the misleading question! What i meant was, currently the low voltage warning appears only if the voltage is low - no message if OK. How about displaying a message always: indicating either the voltage is good or is not good?

Nicolas

ThomasG where can i find the "soft" indicator, if the supply voltage drops.

The warning is displayed to administrators of the Moodle, on every Moodle page. This was added to MoodleBox version 2.7.0, but you can simply upgrade the MoodleBox plugin to the last version and get the feature.

Ratna

Hi Nicolas, now I see the problem with my suggestion. The low voltage warning appears on top of every page. A voltage OK message on top of every page would be annoying! I am taking back the suggestion.

Nicolas

Ratna Yes, I think too this would be annoying.

Entitymarck20

so to adjust the amount of people we have to go to MoodleBox Dashboard (Site administration > Server > MoodleBox > MoodleBox dashboard)?

Ratna

Entitymarck20 Do you mean, you want to limit the number of wireless devices that can be connected to the MoodleBox hotspot? No, there is no such setting.

Entitymarck20

Ratna I do not mean to limit, but to expand the use of connected PC at the same time, since I think for the other year to implement it in the school that I am, but I only connect 10 pc

Nicolas

Entitymarck20 If you can connect only 10 devices, check the red LED and change your power supply!

Entitymarck20

Nicolas When it comes to the LED, it is the one that produces the raspberry pi and the source is going to change these days, since I am using the one on my phone, what voltage do you recommend?

Ratna

Entitymarck20 Yes, it is the red power LED we are talking about. Read, In the later models (A+, B+, Pi 2 & Pi 3) the power LED ... will flash if the voltage drops below 4.63V. Ref. https://www.raspberrypi-spy.co.uk/2013/02/raspberry-pi-status-leds-explained/

Ordinary telephone chargers are certainly too weak to power the RPis, which MoodleBox recommends - the models 3 and 4. Voltage is not the limitation, BTW the voltage has to be stable 5.1 V, it is the amount of current the supply could deliver that matters. In the models 3 and 4, we are advised to take 2 to 3 A supplies.

What is your RPi model, BTW?

Nicolas

And to add up to Ratna comment: I recommend the official power supply (for RPi 3B+ and earlier, for RPi 4B), as stated in the doc.

I've never had any undervoltage warning with these.