#zimodem — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #zimodem, aggregated by home.social.
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Commander X16 Printing Reaches a Laser Printer Over Wi-Fi
#CommanderX16 #X16Edit #RetroComputing #PostScript #LaserPrinter #ZiModem #CUPS #RaspberryPi #VintageComputing
https://theoasisbbs.com/commander-x16-printing-reaches-a-laser-printer-over-wi-fi/?fsp_sid=10941 -
Commander X16 Printing Reaches a Laser Printer Over Wi-Fi
#CommanderX16 #X16Edit #RetroComputing #PostScript #LaserPrinter #ZiModem #CUPS #RaspberryPi #VintageComputing
https://theoasisbbs.com/commander-x16-printing-reaches-a-laser-printer-over-wi-fi/?fsp_sid=10941 -
@tschak it seems very interesting! Imho the fact it is based on an #Esp32 is a plus, because there are already some modems (like the #zimodem ) using the esp32. I have a couple of these, self-built. I hadn't looked at Fujinet in depth yet, but if it uses the tx/rx pins, it may be already compatible with the Zimodem dos serial version. Not sure about the commodore version, btw, it use more pins and hooks to the user port.
I'll definitely try to flash them with Fujinet when I'll have a bit of time! -
@tschak it seems very interesting! Imho the fact it is based on an #Esp32 is a plus, because there are already some modems (like the #zimodem ) using the esp32. I have a couple of these, self-built. I hadn't looked at Fujinet in depth yet, but if it uses the tx/rx pins, it may be already compatible with the Zimodem dos serial version. Not sure about the commodore version, btw, it use more pins and hooks to the user port.
I'll definitely try to flash them with Fujinet when I'll have a bit of time! -
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My #Amstrad #ppc640 has an old-style 25 pin #rs232 port. Unfortunately yesterday I couldn't source a #db9 to #db25 #serial adapter, so I had to...ehm...improvise 😅
It seems that only Rx, Tx and ground are needed for it to work!
#retrocomputing #wifimodem #zimodem -
My #Amstrad #ppc640 has an old-style 25 pin #rs232 port. Unfortunately yesterday I couldn't source a #db9 to #db25 #serial adapter, so I had to...ehm...improvise 😅
It seems that only Rx, Tx and ground are needed for it to work!
#retrocomputing #wifimodem #zimodem -
At the end, all will fit in this enclosure (there was an adsl filter inside). I made some holes for the usb and the reset button. The front hole contained two rj11 sockets, I cut the central divisor and obtained a hole the perfect size for the #uart to #rs232 #db9 connector.
Most of my #retrocomputing gear has the old #db25 connector, so I'll need an adapter anyway...
#zimodem #wifi #modem #hayes -
At the end, all will fit in this enclosure (there was an adsl filter inside). I made some holes for the usb and the reset button. The front hole contained two rj11 sockets, I cut the central divisor and obtained a hole the perfect size for the #uart to #rs232 #db9 connector.
Most of my #retrocomputing gear has the old #db25 connector, so I'll need an adapter anyway...
#zimodem #wifi #modem #hayes -
Every time I do some project "for fun" (= not for work) I try to learn something new, in that way i can say the time needed is not wasted.
So, this time I decided to try #wirewrapping . This is a very simple circuit, with no board, so it's a very very simple case, but I tried and I liked it!
Here a photo while connecting the #esp8266 (already flashed with #zimodem and configured to connect to my wifi) with the #UART to #RS232 adapter. -
Every time I do some project "for fun" (= not for work) I try to learn something new, in that way i can say the time needed is not wasted.
So, this time I decided to try #wirewrapping . This is a very simple circuit, with no board, so it's a very very simple case, but I tried and I liked it!
Here a photo while connecting the #esp8266 (already flashed with #zimodem and configured to connect to my wifi) with the #UART to #RS232 adapter. -
Hang on... this is bonkers! Booting an IBM PC compatible pc mounting a drive via the #serialport ! Something like the modern computers #netboot !
https://youtu.be/g7ScyiO19Pg?si=OcAB5Qsfl4xOykZ0
He uses the #xtide #opensource #bios (https://www.xtideuniversalbios.org/) and a null modem cable to a windows computer. Unfortunately it seems the disk #emulator app is available only for Windows, but I imagine it could be implemented in a #serial #wifi #modem firmware (like #zimodem or #theoldnet 's). Imagine having a #samba share on your #NAS and telling the wifi modem to mount an image on that, then turn on the old pc and boot it from your NAS via WIFI... awesome!!!
#retrocomputing #tandy #pc -
Hang on... this is bonkers! Booting an IBM PC compatible pc mounting a drive via the #serialport ! Something like the modern computers #netboot !
https://youtu.be/g7ScyiO19Pg?si=OcAB5Qsfl4xOykZ0
He uses the #xtide #opensource #bios (https://www.xtideuniversalbios.org/) and a null modem cable to a windows computer. Unfortunately it seems the disk #emulator app is available only for Windows, but I imagine it could be implemented in a #serial #wifi #modem firmware (like #zimodem or #theoldnet 's). Imagine having a #samba share on your #NAS and telling the wifi modem to mount an image on that, then turn on the old pc and boot it from your NAS via WIFI... awesome!!!
#retrocomputing #tandy #pc -
I'm going to build a #wifi #serial #modem for my #amstrad PPC640. Something like #theoldnet 's wifi modem, but I'll use #zimodem on an #esp8266 , because it worked ok with my #commodore64 and now I have some experience with it...
The idea is having the esp emulate an #hayes modem on the #UART pins and convert it to rs232 using a #max3232 module.
I also will need to solder a 9 to 25 pin #rs232 adapter, because I absolutely don't remember where mine is (used last time a couple of home moves ago... 😅)
#dos #bbs #internet -
I'm going to build a #wifi #serial #modem for my #amstrad PPC640. Something like #theoldnet 's wifi modem, but I'll use #zimodem on an #esp8266 , because it worked ok with my #commodore64 and now I have some experience with it...
The idea is having the esp emulate an #hayes modem on the #UART pins and convert it to rs232 using a #max3232 module.
I also will need to solder a 9 to 25 pin #rs232 adapter, because I absolutely don't remember where mine is (used last time a couple of home moves ago... 😅)
#dos #bbs #internet -
Now it's time for some BBSing... Right now is behaving correctly: no more spurious resets, and I'm using the #C64 to power it, very conveniently.
I'm using it along with the #KungFuFlash to load #CCGMS , so I'm probably driving the #commodore 's 5v line pretty hard... Until now, I only had a couple of missed boots from the KungFuFlash, probably due to an unstable voltage on turn on. Once it boots, btw, it seems pretty stable. The original power brick may not be having the best time of its life...
#BBS #zimodem #commodore64 #esp8266 -
About the #commodore64 #zimodem #wifi #modem: Troubleshooted, tested and sealed up (i KNOW I will regret this last part, but the enclosure was definitely too janky and I don't have access to a 3D printer to print an adequate enclosure).
Also, I should have DEFINITELY placed the #esp8266 on the edge of the PCB, so I could have made an hole to update the firmware without exploding the whole assembly... 🤷♂️
Lesson learned for the next time... -
I just tried the #zimodem #wifi modem for the #commodore I built. It works, but it was a bumpy ride... at first the #esp8266 was resetting continuously. I thought that the #commodore64 wasn't providing enough current, so I cut the 5v cable and connected to usb power, to no avail: it keeped resetting every now and then. Then i checked with the multimeter and there was a low resistance between the reset pin and ground. Cut that as well, but I got only garbled characters. At the end I noticed a comment in the page I used to download #ccgms 2021 saying it wasn't working on certain modems. They suggested trying the 2017 version and... it worked flawlessly!
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Printed some stickers. Very unprofessional. Very handmade. Very very ugly.
...I like it!
#c64 #commodore64 #zimodem #esp8266 #diy #electronics -
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I built myself a tiny #wifi #modem for the #commodore64 . It uses an #esp8266 to emulate an #hayes modem using the #Zimodem firmware.
I made a couple of changes to the design found online, namely added a capacitor on the power rail (because the Commodore provides 100mAh but the ESP can have a higher transients up to 200mAh) and this one: https://www.valoroso.it/modifica-al-modem-wifi-per-commodore-64/
Now going to double-check every connection with the tester before trying it on the Commodore.
#commodore #c64 -
Lost the best part of the morning trying to wrap my head around #zimodem for the #commodore64 ...
Flashed the #firmware on an #esp32, I get the startup messages but the command issued on the default UART are ignored.
I see some activity in the GPIO pins, but the source code gives no clue to what pins on the c64 userport should be connected to... -
I'm looking to build a #zimodem or something similar using an #ESP8266 or #ESP32 for some throwback #BBS 'ing or perhaps connecting to a Linux system. For this, I was hoping that it would be easy to find an old dead #Hayes #SmartModem or something similar in solid, preferably metal box - but we're apparently not that sentimental and a little too efficient at recycling stuff in these parts 😢
For those digging the idea, and wanting to go ALL in, there's the Noisy Zimodem. Someone took the time to combine a Zimodem and a DAC for producing authentic modem sounds. If that doesn't take you back to the awesome #90s, I don't know what will.
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I'm looking to build a #zimodem or something similar using an #ESP8266 or #ESP32 for some throwback #BBS 'ing or perhaps connecting to a Linux system. For this, I was hoping that it would be easy to find an old dead #Hayes #SmartModem or something similar in solid, preferably metal box - but we're apparently not that sentimental and a little too efficient at recycling stuff in these parts 😢
For those digging the idea, and wanting to go ALL in, there's the Noisy Zimodem. Someone took the time to combine a Zimodem and a DAC for producing authentic modem sounds. If that doesn't take you back to the awesome #90s, I don't know what will.
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Today I successfully compiled and flashed the Zimodem firmware onto my ESP8266 WiFi board for the #RC2014. I did have some trouble getting various clock/baud rates to work without garbling or dropping characters, so had to fall down to 4800 to get stable TX/RX (will troubleshoot this more later). I was then able to use QTerm to connect to the BBS that @Wintermute_BBS runs on an RC2014 (rc2014.ddns.net:2014). At 4800 it was slooow, but very cool! 🔥😎
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Today I successfully compiled and flashed the Zimodem firmware onto my ESP8266 WiFi board for the #RC2014. I did have some trouble getting various clock/baud rates to work without garbling or dropping characters, so had to fall down to 4800 to get stable TX/RX (will troubleshoot this more later). I was then able to use QTerm to connect to the BBS that @Wintermute_BBS runs on an RC2014 (rc2014.ddns.net:2014). At 4800 it was slooow, but very cool! 🔥😎