+wongojack Posted July 29, 2013 Share Posted July 29, 2013 Dunno if this has been done yet, but I took it upon myself to make an Inty stick from the good ole Radica Space Invaders Plug & Play game. I thought this side view was a pretty good one. It shows the DB9 out (white cord) to the Inty, and the DB9 in (Black joystick plug) which has a Sears Video Arcade controller plugged into it. This passes through so I have a keypad etc. It's also connected to an AC adapter (center negative . . .) which gives me the volts I need to run the logic gate that allows for true diagonal control. You can also use batteries. Those are the options to power the original game which I utilized for my own maniacal purposes. I guess that I should have made a video of gameplay, but for now, here are the guts. I had to cut my board with an exacto to fit it in place. It probably fits better than the original. I bought the wrong logic chip which complicated the design a bit. This chip requires pull-ups on the outputs, so there are some extra resistors in there to complicate things. I'm not sure getting true diagonal was worth it, but I learned quite a bit in doing this. The Radica game that was in there is now partially disassembled. I harvested some parts from it to help re-build their power switch into my design, and I removed their LED and its plastic case which is also installed in my stick. Most of my time went into prototyping the circuits so I could be sure I understood what needed to happen. I'm not trained in this at all so it was a lot of individual research and trial and error that got me to a working unit. Here's a pic of my prototyping: Once I got that to work, I had to design a way to fit it into the base of the stick. It was a lot of careful and methodical work. I kinda thought it would be easier when I started, but thankfully, I planned very carefully and didn't really have to do any re-soldering. Here's an early version o my hand drawn design for the board that I installed. It's not correct in a couple places, but that's why I had to draw it up. It plays great. I got my highest score ever on Astrosmash on my first try with this thing! Happy to answer questions on this if you want to try and build your own. I have a small pile of these games and may make a couple more of them if there is high interest. 1 Quote Link to comment Share on other sites More sharing options...
Rev Posted July 30, 2013 Share Posted July 30, 2013 cool! Quote Link to comment Share on other sites More sharing options...
bikeguychicago Posted July 30, 2013 Share Posted July 30, 2013 I just had one of those modified for the Atari 7800. It's a great joystick and is very responsive. Quote Link to comment Share on other sites More sharing options...
ebelhaki Posted July 30, 2013 Share Posted July 30, 2013 Very cool. I have plans to do something similar with a custom made box and include a keypad but haven't had the time. I think the 8 way was a good choice. It's not 16 but is good enough for most games. Quote Link to comment Share on other sites More sharing options...
+wongojack Posted July 31, 2013 Author Share Posted July 31, 2013 Thanks for the comments guys - I'm pretty proud of this. I was going to make a gameplay video last night, but I couldn't find my tripod - doh! Here are the resources that really helped me complete this project: http://web.archive.org/web/20060317145051/http://users.erols.com/tiltonj/games/tech/intvsticky.html http://atariage.com/forums/topic/165229-the-intellivision-controller-matrix-guide/ http://atariage.com/forums/topic/212928-intv2-to-sms-adapter-build/ I also want to just put a plug in for user grips03 - he seems to know what he's doing 2 Quote Link to comment Share on other sites More sharing options...
+grips03 Posted July 31, 2013 Share Posted July 31, 2013 Intv controller has 3 DPST switches for button (S1,S2,S3). Are you wiring each button to work independently or are you wiring like SMS adapter in the link you posted? I see 4 buttons on the controller. Quote Link to comment Share on other sites More sharing options...
+wongojack Posted July 31, 2013 Author Share Posted July 31, 2013 Intv controller has 3 DPST switches for button (S1,S2,S3). Are you wiring each button to work independently or are you wiring like SMS adapter in the link you posted? I see 4 buttons on the controller. They are wired independently from left its S1, S2, S3, S1. I opted not to use the logic gate like he did in the link as I didn't need it for this layout. I REALLY wanted to make the "menu" button that is on the top function like 1 + 7 (pause), but it was a bit more wiring in a tight space - also, I got impatient to finish. Perhaps I'll figure out a smarter way to include that and add it in on my next attempt. Quote Link to comment Share on other sites More sharing options...
+grips03 Posted July 31, 2013 Share Posted July 31, 2013 The 74266 (XNOR) in the Deathskull labs guide does not send GND when S1 and S2 are pressed, hence pressing button 1 & 2 = S3. I wired like this when I wanted multiple independent buttons using TTL parts. https://www.flickr.com/photos/20625046@N08/8932032515/ Quote Link to comment Share on other sites More sharing options...
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