Wifi modem

[Daren]

Stumbled upon this recently:

https://www.tindie.com/products/theoldn ... aa9a6723c6

Should be possible to use with comms link, ideally a fully integrated wifi modem would be my preference but I might end up trying one of these. Ideas for use would be remote control of peripherals over wifi along with status reports on the Psion - eg super simple text server connected to say a temp and humidity module in the garden, log on with Psion and get a readout of current temp and humidity etc.

[amenjet]

That module looks very similar to the one I used in the recreation of the Psion Organiser. That would do Wifi or Bluetooth.
I had both working but not at the same time. There should be a demo unit floating around somewhere, I think. Or did I get it back? I can't remember.
The latest boards i did were designed to use a Pico W and have datapack read and write hardware so legacy packs could be used. Unfortunately I
soldered a normal Pico on the first unit I made and the datapack writing is proving to be tricky to get working.

There's a video or two here:

https://youtu.be/_GC4zqrhKq8

I don't know if you've seen that before?

Andrew

[Daren]

Oh that would be such a great solution if you ever manage to get a picoW operating as a datapak and wifi modem working - guess there would be some level shifting both ways to get them talking properly for the datapak part? Do you think it could fit in a standard datapak case if you ever get it working? That would be really handy and compact.

[amenjet]

Oh that would be such a great solution if you ever manage to get a picoW operating as a datapak and wifi modem working - guess there would be some level shifting both ways to get them talking properly for the datapak part? Do you think it could fit in a standard datapak case if you ever get it working? That would be really handy and compact.

It won't work in a standard datapack as the power isn't on when the pack isn't accessed. You could use special code to prevent that, Isuppose. You can do it in the top slot though:

https://youtu.be/qraPyxskW0Q
https://youtu.be/fZV7pnPyx9Q
https://youtu.be/N5yA6YaLCbA
https://youtu.be/QpplPo5gwxs

Obviously the PCB is a breakout version and larger than it needs to be.

The recreation has access to all of the resources of the Psion processor as it runs an emulated ROM so you can look at code execution etc, and it runs wifi and BT.

Andrew

[Bumblemittens]

just throwing my 2 penneth in, that module on tindie does the same job as this on for rc2014 z80 also on tindie, supplied schematic also
they use esp8266 which is my goto uC for wifi apps

ESP8266-Wifi-Module-v1.1.jpg

ESP8266-Module-v1.2.pdf

Shaun

[okto]

If it’s stupid and it works, it’s not stupid.

C350988F-7D87-4CC2-B201-6BDB280DB62C.jpeg

[okto]

Also:

https://www.cbmstuff.com/index.php?rout ... duct_id=59

https://biosrhythm.com/?page_id=1453

[Martin]

Wow...

So there is a WIFI module connected to a gender changer connected to a 25 pin to 9 pin adaptor connected to a gender changer connected to a Dynasys (DT/Link) Comms Link...

Jaap once had what he called a "Frankenstein's monster of a link" (here) just trying to get USB to serial. I think yours must be the current record holder.

Questions...
(1) What's running on the Organiser?
(1a) Have you written something to intercept the terminal
(2) What's running on the PC?
(3) Can it do standard Comms Link [Transmit] and [Receive} functions?

Also do you know author of the ESP8266-Module-v1.2.PDF?. Do you know who I would contact for permission to put a copy with the schematics (here) in the Technical Reference Manual Page?

I'm continually amazed at what you electronics geniuses can get to work with the simple Organiser.

Sincerely and in good faith
Martin

[okto]

This is just the terminal emulator in the Comms Link software.

There's no PC involved, this is the status message from the modem itself, which is set up as a telnet client.

The Dyna-Link ROM appears to be identical to the Comms Link ROM.

[s]I'm not familiar with that particular PDF, but it sounds like it might be from the manufacturer, Expressif?[/s]
It's from the guy who created the RC2014 Z80 computer project: https://rc2014.co.uk/modules/esp8266-wifi-module/

[Bumblemittens]

[quote=
[s]I'm not familiar with that particular PDF, but it sounds like it might be from the manufacturer, Expressif?[/s]
It's from the guy who created the RC2014 Z80 computer project: https://rc2014.co.uk/modules/esp8266-wifi-module/
[/quote]

Yes, indeed that WiFi dev board is for rc2014, I haven't built that board for my system but used esp8266's in this way before
https://rc2014.co.uk/modules/esp8266-wifi-module/

Shaun