We are also
developing a RFID card to unlock/lock the machine (still
experimental, and we are going to use an old 68HC11 board for this ...
it's 80s technology)
Are you developing your own technology? Or are you re-using standard
technology that's been around for a while?
our own technology. RFID at 125Khz. We already have a prototype. A
good occasion to play with analogic electronics and also a good
occasion to use ICC11 v6.5 on a HC11 board, and ICC11 was a good C
compiler in the 90s. (we are also supporting gcc-11, but it's ... not
so good)
I think Sun (and others) had X terminals that had
smart card slots in
them. This sounds functionally quite similar, just a few substitutions.
yup, SunRay uses a smart-card, but it's not contactless, and it's a
true-smart card, whose protocol looks not so funny to play with
(except if you are paid for doing it). SmartCards are safer anyway
We want to use RFID Smartcard-shaped cards. The looks like a credit
card, but they have an RFID capsule inside. Therefore we only need a
coil to read it.
Simply, and funny.
this (1) a commercial product you can use as a reference ... the chip
is a common avr8
(1)
http://www.downthebunker.xyz/wonderland/chunk_of/stuff/public/projects/sono…
That in and of itself does not make what you're
doing bad or a waste of
time IMHO if you're having fun (other than injuries), learning, reducing
ewaste by reusing things you have, well that all sounds good to me.
Precisely! We neither have a CNC, nor a 3D printer, and we want to
recycle polycarbonate frames. We got a lot of industrial waste. It
would be a shame trashing them.
I was sort of asking because part of me would like to
build something
that looks like a DEC vt420 with a look alike (but physically smaller)
case with an LCD (?) display. I've thought about running a Pi and
running XTerm. But that's a pipe dream project for some other time.
it can be done easily. Our boards run U-BOOT as firmware, and Linux as
the kernel.
On your RPI you just need to manage a custom kernel on a custom rootfs.
There is a Dude on the internet offering a small Indigo1 case with a
LinuxBoard inside.
It's a cool project. The case is 3D printed.
The only "tricky" part is setting the builder. We chose catalyst
because we also support Gentoo on MIPS4, MIPS32, HPPA2, PPCBE, thus
it's a "natural" choice, but there are also builders like Angstrom and
OpenWRT which allow you to have ucLibc and similar. We are using glibc
just for our convenience (since we already have a working and tested
glibc-profile)
Anyway, we'd like to have a nice WindowsManager. We are using "mwm"
which is super light and very classic (my Tektronix XP217 uses it),
but we are going to evaluate "fvwm": it seems it's light but offering
good "visual features"; we'd like to reconfigure it with the look&feel
of 4DWM (SGI IRIX) ...
maybe it's possible, who knows :D