Frank_fjs Posted February 10, 2019 Share Posted February 10, 2019 I'm trying to build this Atmega emulated pong circuit: http://searle.hostei.com/grant/AVRPong/index.html Not having much luck getting it going, getting something on screen but mostly a jumbled mess of lines. I'm programming directly from the breadboard via a USB AVP programmer, using XtremeBurner software. I believe my issue is that I'm not setting the low fuse bits to set an external clock. I've tried but just end up bricking the Atmega328P chip. Anyone familiar with how to enable an external 16MHz crystal when flashing the Atmega328P? Link to comment Share on other sites More sharing options...
Frank_fjs Posted February 10, 2019 Author Share Posted February 10, 2019 Got it working. Pretty cool little pong project. Low fuse for 16MHz crystal is 0XFF Had to omit the 1000R from the sync line for stable image. Link to comment Share on other sites More sharing options...
Kaizen Posted February 10, 2019 Share Posted February 10, 2019 Nice work mate. Link to comment Share on other sites More sharing options...
Frank_fjs Posted February 10, 2019 Author Share Posted February 10, 2019 I'm going to design a PCB for it, it's a really nifty little project. I plan on 3D printing some enclosures for the paddles and making them external to the PCB, they'll connect via a cable with JST plugs. Rather cool that you can do this with so few components. The Atmega emulates the pong chip quite faithfully. The Arduino TV out interface is great, there's other games you can do like space invaders etc. Link to comment Share on other sites More sharing options...
Frank_fjs Posted March 7, 2019 Author Share Posted March 7, 2019 PCBs arrived, really happy with how it turned out. I've designed it to use parts that are all available from Jaycar and printed the part numbers on the back of the PCB. Link to comment Share on other sites More sharing options...
djflask Posted March 7, 2019 Share Posted March 7, 2019 That is really cool. Are you going to sell them Sent from my Redmi Note 4 using Tapatalk Link to comment Share on other sites More sharing options...
Frank_fjs Posted March 10, 2019 Author Share Posted March 10, 2019 I can sell the PCBs, then let people supply and solder parts themselves. Jaycar and Altronics etc have all the parts available. Link to comment Share on other sites More sharing options...
Frank_fjs Posted May 3, 2019 Author Share Posted May 3, 2019 Finished this project off. Made some improvements to the PCB. I'll be listing a small handful of PCBs in the for sale section soon. I can supply a pre-programmed Atmega328 if needed. Remainder of parts can easily be sourced from Jaycar, part numbers printed on the reverse side of the board. Link to comment Share on other sites More sharing options...
steptoe Posted May 3, 2019 Share Posted May 3, 2019 Awesome mate, you and Kaizen would have plenty to talk about for sure. Link to comment Share on other sites More sharing options...
Kaizen Posted May 3, 2019 Share Posted May 3, 2019 I'm up for one. Pong style knobs available here... https://m.aliexpress.com/item/32624205116.html?spm=a2g0n.orderlist-amp.item.32624205116&aff_trace_key=492ebf65a35c4dbe934e8b3ee3102409-1556801582801-06759-KnSGCh6&aff_platform=msite&m_page_id=2910amp-4-bMx2a3T1T3AtlohR-K9g1556883148999 Link to comment Share on other sites More sharing options...
Frank_fjs Posted May 3, 2019 Author Share Posted May 3, 2019 Nice knobs! :P I'll definitely save one for you @Kaizen. When I get around to it, probably be a while, I'm going to adopt it for jamma. Link to comment Share on other sites More sharing options...
raysco Posted May 3, 2019 Share Posted May 3, 2019 If you are selling one, put me on your list please :D Link to comment Share on other sites More sharing options...
poidapoida Posted May 3, 2019 Share Posted May 3, 2019 Finished this project off. Made some improvements to the PCB. I'll be listing a small handful of PCBs in the for sale section soon. I can supply a pre-programmed Atmega328 if needed. Remainder of parts can easily be sourced from Jaycar, part numbers printed on the reverse side of the board. https://www.aussiearcade.com/attachment.php?attachmentid=147364 https://www.aussiearcade.com/attachment.php?attachmentid=147365 https://www.aussiearcade.com/attachment.php?attachmentid=147366 I'll be in on this little project, I'll keep an eye out . Link to comment Share on other sites More sharing options...
Kaizen Posted May 18, 2019 Share Posted May 18, 2019 (edited) @Frank_fjs Is there an option/pin alredy coded in to swap between manual and auto serve? Edit: I just read the documentation on the website and it says it can be easily done however I have no idea how to write code... :guru: :headbuttwall: :hairpull: :40s: Edited May 18, 2019 by Kaizen Link to comment Share on other sites More sharing options...
Frank_fjs Posted May 18, 2019 Author Share Posted May 18, 2019 Has anyone built theirs yet? Link to comment Share on other sites More sharing options...
Kaizen Posted May 18, 2019 Share Posted May 18, 2019 (edited) Yep, built and tested. I'll be mounting it in an original game housing that was missing the AY chip. There's just enough room to mount it below the original PCB which will be used for the switches. Edited May 18, 2019 by Kaizen Link to comment Share on other sites More sharing options...
Frank_fjs Posted May 18, 2019 Author Share Posted May 18, 2019 That's bloody awesome! Thanks for sharing. Link to comment Share on other sites More sharing options...
poidapoida Posted May 18, 2019 Share Posted May 18, 2019 Has anyone built theirs yet? Not yet Frank. Might get some pics up in the next couple of weeks. Link to comment Share on other sites More sharing options...
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