• It’s User Serviceable if You Have Gift Wrap and Weather Strip

    04 Jun | 16
    • in Electronics • 
    • in TRS-80 • 
    • by FozzTexx

    My TRS-80 Model II Last weekend one of my usual sources of inspiration, @duhproject, received a Commodore 128. A lot of people on Twitter started talking about  their  128s, so I had to get mine out too. I thought it would be interesting to try out a true 80 column terminal program under CP/M since it was something that the 128 could do that that 64 doesn’t. It didn’t take long before I decided that running CP/M from a 5.25” drive wasn’t “CP/M...

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  • The Age of Aquarius?

    02 Jun | 16
    • in Raspberry Pi • 
    • in Mattel Aquarius • 
    • by FozzTexx

    @MWTremblay on Twitter was asking me if I hung out regularly on IRC, and although I’ve written my own IRC client, that was a long time ago and don’t really use IRC much anymore. I mentioned that I use Twitter as my new IRC, and he said he was looking for something more compatible with an Atari XE. Challenge accepted! About a week later I found the time to work on that project and spent the day cobbling up a BBS door in Objective-C that would allow a user to send a tweet. Another...

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  • Forked tcpser to fix the telnet bug and add features

    26 May | 16
    • in Retro • 
    • by FozzTexx

    While tinkering with my BBS this week I again found myself frustrated with a couple of bugs in tcpser. The first one was that it only worked with 8N1 data. A few of the comm programs on my more obscure computers have no settings to choose parity, and will insist on either doing mark parity or even parity. That meant that I couldn’t even enter the AT command to dial out.   An easy fix would have been to just strip the high bit so that tcpser would see the AT commands, but that would...

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  • Wanted: Smith-Corona Service Manual - Reward Offered

    18 May | 16
    • in Retro • 
    • by FozzTexx

    Update 2016 Jun 8: I was able to get the typewriter open and it is now working and printing A couple of weeks ago I picked up a Smith-Corona Memory Correct 400 Messenger at Goodwill. I debated getting it since I already have enough retro stuff around the house, but every single time I’m at a Goodwill I look at all the typewriters to see if they have some kind of serial or parallel port. This one has an external interface which can be connected to a computer using an external box...

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  • Testing DRAM Using an Arduino

    14 Mar | 16
    • in Arduino • 
    • in Arduino • 
    • in Apple IIgs • 
    • by FozzTexx

    Bad RAM on the IIgs A couple of weekends ago I was in the mood to do some retrogaming and didn’t know what I wanted to play so I asked for some suggestions from Twitter. I played some Castle Wolfenstein, Snake Byte, BC’s Quest for Tires, and Miner 2049er on the Apple IIe and then I wanted to try some games on my Apple IIgs. Unfortunately my IIgs has had intermittent issues for a long time, and it was looking like bad RAM might be the culprit.   The IIgs has an Applied...

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