[dms-discuss] Raspberry Pi GPIO workshop update

Bill King bking94618 at gmail.com
Mon May 2 21:41:26 UTC 2022

Some unexpected good news.

I just tested at the library. mDNS does work there and I'm able to connect
via SSH to the test Pi. So if the hostname is set and the
wpa_supplicant.conf file is correct on someone's Pi, they should be able to
log in from a laptop (AS LONG AS mDNS works on their laptop. My Mac works
fine, my Linux machine as issues.)

If mDNS fails the fallback is to log in via the Serial cable and

If that fails, the wpa_supp on the Pi's card can be edited on a Linux
machine or otherwise debugged.


On Sun, May 1, 2022, 2:53 PM Braden Pellett <braden at davismakerspace.org>

> I haven't tried on the Library network specifically, but often a public
> network will not allow connections between clients connected to the
> network; so while a person might get their Pi and their laptop on the
> network, one wouldn't be able to connect between them via that network.
> One possible way around this without futzing with the Library network
> would be to bring a computer to host your own wireless network that doesn't
> have such a restriction, and treat the Library network as the upstream WAN
> for internet access.
>   - Braden
> On Fri, Apr 29, 2022 at 06:37:27PM -0700, Bill King wrote:
> > I've updated the Draft document on the Wiki:
> > https://wiki.davismakerspace.org/RpiGPIO
> >
> > There are status notes embedded as comments in the document itself if
> > you're interested. They don't show in the HTML source so think of them
> > as internal notes.
> >
> > I think I have a good plan and procedure for getting the RPis on the
> > library wifi.
> >
> > What I don't have is a Windows machine to test this on. I only have
> > Linux and Mac. Is there anyone using Windows who'd like to be a guinea
> > pig / test case? We can meet at the library and set up your Pi ahead
> > of the workshop. Let me know if you're interested.
> >
> > I also talked with the Teen Librarian about when this might take
> > place. She'd prefer it be late June or early July. She's working on
> > Juneteenth and then taking a vacation. If it happens sooner, she'd
> > hand off any promotion work to someone else at the library. She's also
> > ok with us using some network scan tools to locate IP addresses if
> > needed. Alas, things like nmap can't find hostnames on DHCP. But we
> > can work around that.
> >
> > Bill King
> > _______________________________________________
> > Davis Makerspace Discuss mailing list
> > Discuss at lists.davismakerspace.org
> > https://lists.davismakerspace.org/listinfo/discuss
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