+grips03 Posted October 27, 2013 Share Posted October 27, 2013 Has anyone made an Atari 5200 controller similar to the Vectrex one below? Vectrex Schematic: Joystick Direction Control: +5V (Pin 7) ^ | 10K .__|__/\/\/\/\___. | | Joystick RIGHT -| 3.3K | (+socket) | ._____/\/\/\/\___| | | |-------- X Direction 3.3K | (Pin 5) ._____/\/\/\/\___| | | Joystick LEFT -| | (+socket) | ._____/\/\/\/\___| | 10K | -5V (Pin 9) +5V (Pin 7) ^ | 10K .__|__/\/\/\/\___. | | Joystick UP -| 3.3K | (+socket) | ._____/\/\/\/\___| | | |-------- Y Direction 3.3K | (Pin 6) ._____/\/\/\/\___| | | Joystick DOWN -| | (+socket) | ._____/\/\/\/\___| | 10K | -5V (Pin 9) Quote Link to comment Share on other sites More sharing options...
+grips03 Posted October 27, 2013 Author Share Posted October 27, 2013 Looking at this more I'm thinking it would work for a controller, just not as an adapter as its not wired right for that Quote Link to comment Share on other sites More sharing options...
+grips03 Posted October 27, 2013 Author Share Posted October 27, 2013 here is the schematic that looks like it will work with Atari 5200. I'm going to build on some proto board and test out. Please note this does require microswitches that are both normally open and normally closed. Values on the right are from stick Atari 5200 and so vary, example sometimes I would get 3.7 to 4.0v 1.5 to 1.8v (center) .9v to 1.1v Quote Link to comment Share on other sites More sharing options...
bohoki Posted October 27, 2013 Share Posted October 27, 2013 there is a sneakier way to fool a 5200 without having to use nc buttons if you ground the x y directions using the fire button ground it's charge time goes infinite (use a resistor just for safety) so you use that idea for right and down Quote Link to comment Share on other sites More sharing options...
+grips03 Posted October 27, 2013 Author Share Posted October 27, 2013 there is a sneakier way to fool a 5200 without having to use nc buttons if you ground the x y directions using the fire button ground it's charge time goes infinite (use a resistor just for safety) so you use that idea for right and down can you diagram up that method for me? using all NO microswitches would be nicer I put the above diagram on protoboard and it works fine Quote Link to comment Share on other sites More sharing options...
bohoki Posted October 28, 2013 Share Posted October 28, 2013 (edited) all resistors are 240kohm Edited October 28, 2013 by bohoki Quote Link to comment Share on other sites More sharing options...
Jess Ragan Posted October 29, 2013 Share Posted October 29, 2013 Your schematic looks like it's having a nervous breakdown. :{ Quote Link to comment Share on other sites More sharing options...
+grips03 Posted October 31, 2013 Author Share Posted October 31, 2013 all resistors are 240kohm why 240k ohm? When I measured the center of the controllers here I got 280k. Perhaps both are not right and it should really be 250K as they are 500k pots and that should be center? I see R132 pot in console to adjust center (using Pete's cart), but I think Atari must have adjusted this pot before shipping, i.e. out of the factory they all might be a little bit diferent. Perhaps their is a service manual that explains how to adjust using a mulimeter? Quote Link to comment Share on other sites More sharing options...
bohoki Posted November 2, 2013 Share Posted November 2, 2013 240k works for me the 5200 adjusts a little Quote Link to comment Share on other sites More sharing options...
low_budget Posted November 9, 2013 Share Posted November 9, 2013 I made up a schematic for a digital controller adapter for the 5200 that only needs one IC and works with most games. I made mine with keypad built in and joystick adapter wired for atari/genesis/SMS. It has 1M pots used to adjust the centering. Quote Link to comment Share on other sites More sharing options...
SoundGammon Posted November 9, 2013 Share Posted November 9, 2013 Just what I'm looking for! Thanks! I've got 2 ideas I want to try: 1) On a 4-port model, take out 3 & 4 jacks and put in 9 pin jacks and then interface them to jacks 1 & 2. 2) Put it into a 5200 trak-ball controller and put a 9-pin jack at the back of the case to plug in any 2600/Genesis controller! Quote Link to comment Share on other sites More sharing options...
+grips03 Posted November 9, 2013 Author Share Posted November 9, 2013 the low-budget design is good for adapters, but is not needed for a controller pcb, as only resistors are needed. I've been using my 6 resistor design for the past serveral weeks and it works great, but does require 2 normally closed microswitches. I've not tried bohoki's design but I suspect it will work well too. Quote Link to comment Share on other sites More sharing options...
ilovethevectrex Posted November 9, 2013 Share Posted November 9, 2013 Has anyone made an Atari 5200 controller similar to the Vectrex one below?Vectrex Schematic:Joystick Direction Control: +5V (Pin 7) ^ | 10K .__|__/\/\/\/\___. | |Joystick RIGHT -| 3.3K |(+socket) | ._____/\/\/\/\___| | | |-------- X Direction 3.3K | (Pin 5) ._____/\/\/\/\___| | |Joystick LEFT -| |(+socket) | ._____/\/\/\/\___| | 10K | -5V (Pin 9) +5V (Pin 7) ^ | 10K .__|__/\/\/\/\___. | |Joystick UP -| 3.3K |(+socket) | ._____/\/\/\/\___| | | |-------- Y Direction 3.3K | (Pin 6) ._____/\/\/\/\___| | |Joystick DOWN -| |(+socket) | ._____/\/\/\/\___| | 10K | -5V (Pin 9) no one as far as i know has made one yet, but hopefully recycledgamer.com will make one Quote Link to comment Share on other sites More sharing options...
+grips03 Posted November 10, 2013 Author Share Posted November 10, 2013 no one as far as i know has made one yet, but hopefully recycledgamer.com will make one a bit late Quote Link to comment Share on other sites More sharing options...
ilovethevectrex Posted November 10, 2013 Share Posted November 10, 2013 a bit late what do you mean? Quote Link to comment Share on other sites More sharing options...
+grips03 Posted November 10, 2013 Author Share Posted November 10, 2013 what do you mean? two people already made one like this and shared the diagram for such in the previous posts Quote Link to comment Share on other sites More sharing options...
ilovethevectrex Posted November 10, 2013 Share Posted November 10, 2013 two people already made one like this and shared the diagram for such in the previous posts two people already made one like this and shared the diagram for such in the previous posts oh i see. well, that doesnt mean recycled gamer cant make one. but thats still cool! Quote Link to comment Share on other sites More sharing options...
+grips03 Posted November 10, 2013 Author Share Posted November 10, 2013 (edited) the one I drew works by using two 560k in parallel, so equivalent resistance is 280k = this is the center - or can be made to be the center by adjusting the pot on the 5200 if you press right to open the circuit it removes the second 560k resistor, so resistance is now 560k - this is the normally closed path if press left it closes the circuit with the 15k resistor and puts it in parallel with the 280k resistor, so equivalent resistance is about 15k - this is the normally open path these match the resistance measured on my Best gold dot controller I'm adding rapid fire, then going to hack into NeoGeoX controller with a matrix keypad. It will plug directly into Atari 5200 via db15 cable Edited November 10, 2013 by grips03 Quote Link to comment Share on other sites More sharing options...
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