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Forum Index : Microcontroller and PC projects : PicoMite: PicoGAME VGA development
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Martin H. Guru  Joined: 04/06/2022 Location: GermanyPosts: 1115 |
Hi Tom , That looks like just a brick with no features, but one can take it for measurement to build a working gamepad. Just Printed this one https://www.thingiverse.com/thing:2890310 because I had this 4 way microswitch arcade joystick lying around from a previous Ali Express order  I just had to adjust the diameter of the buttons before I printed the top. Cheers Mart!n 'no comment |
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thwill Guru Joined: 16/09/2019 Location: United KingdomPosts: 4047 |
New deliveries from JLCPCB, some v2.0 PicoGAME PCBs: .jpg) One of them is of course yours if you want it Mick ? Probably going to be a couple of weeks before they hit the workbench, but expect queries regarding the BOM in the meantime. Best wishes, Tom Game*Mite, CMM2 Welcome Tape, Creaky old text adventures |
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| thwill Guru Joined: 16/09/2019 Location: United KingdomPosts: 4047 |
So I'm going to need some 33nF, 27nF and 68nF capacitors - mylar polyester film vs. monolithic ceramic - or does it not matter ? The 4.7mH 20R inductor, does this really need to be that specific RS part (191-1197) or will one of these do: https://www.ebay.co.uk/itm/263867106353 ? - and if so 1/2 or 1 W ? Best wishes, Tom Game*Mite, CMM2 Welcome Tape, Creaky old text adventures |
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Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6814 |
Crikey - did I design that thing with all those holes in it? Yes please, Tom. :) That would be most kind of you. I think I must be getting close to the ultimate design on this now. It's *possible* to fit more stuff on, but connecting it to the PicoMite is very difficult now. I almost changed the VGA output to the simplified one to fit four resistors to make phone charging more flexible, but it adds nothing to the game and removes the possibility of using it with monitors that have strange input requirements. I suspect the next version (if one is necessary) will only be bug fixes. We'll see. :) Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6814 |
To get the predicted audio response you do need the specified inductors and 5% tolerance capacitors where indicated. The actual type of capacitor isn't all that critical as long as it will fit the pcb. Check ebay for that inductor part number - I think I've seen the correct ones somewhere on there. You'll get *something* with the wrong components, but it's unlikely to match Volhout's response curve for the filter. Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| thwill Guru Joined: 16/09/2019 Location: United KingdomPosts: 4047 |
I can't find your snail mail address, please PM me. Best wishes, Tom Game*Mite, CMM2 Welcome Tape, Creaky old text adventures |
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| Martin H. Guru Joined: 04/06/2022 Location: GermanyPosts: 1115 |
:-) I ordered mine at https://www.pcbway.com/ .. this Sunday. Were shipped yesterday, I'm curious when the delivered 'no comment |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6814 |
PCB has just appeared, Tom. Thanks! :) Brilliant post office service again. Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| thwill Guru Joined: 16/09/2019 Location: United KingdomPosts: 4047 |
You're welcome Mick, with a bit of luck you'll find the problems with it before I have to  .When it comes to letters the Post Office remains amazing ... it's strange to think it was even faster and more frequent in the past. Best wishes, Tom Edited 2022-07-31 01:40 by thwill Game*Mite, CMM2 Welcome Tape, Creaky old text adventures |
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| lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3152 |
And mine arrived today--16 days after ordering them from JLCPCB. Slow boat shipping times back to pre-pandemic.  PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
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| Volhout Guru Joined: 05/03/2018 Location: NetherlandsPosts: 4256 |
Tom, please note the capacitos should be 33nf, 68nf and 2.7nf So please do not order 27nf, but order 2.7nf (or 2700pf which is the same). Most likely the inductors you identified 4.7mH (the 1W type) will work. But they seem more expensive than the RS type. Volhout PicomiteVGA PETSCII ROBOTS |
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| thwill Guru Joined: 16/09/2019 Location: United KingdomPosts: 4047 |
I think that is/was only an issue with @matherp's reference PCB, the BOM for @Mixtel90's PicoGAME VGA 2.0 shows 2.7nF. Not sure, are you ignoring ridiculous postage costs from RS et al. ? Anyway I've asked my father in-law to add the exact components for both variants to his next Farnell order. Best wishes, Tom Edited 2022-07-31 19:24 by thwill Game*Mite, CMM2 Welcome Tape, Creaky old text adventures |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6814 |
RS postage isn't that bad, Tom. I think it's about a fiver. It's also fast. If they haven't got something in stock they send it later with no extra postage charge. Farnell is expensive unless you are ordering a lot of stuff (over 30UKP+VAT IIRC). Bitsbox is cheap postage, but their range is limited. ------------------- Watch the inductors *and* capacitors, Tom. There have been a few variations and you can't mix them. :) Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| thwill Guru Joined: 16/09/2019 Location: United KingdomPosts: 4047 |
Hence getting the father in-law to tack them onto one of his business orders. ACK, I think I can handle it if the BOM is correct .Best wishes, Tom Edited 2022-07-31 20:09 by thwill Game*Mite, CMM2 Welcome Tape, Creaky old text adventures |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6814 |
You trust me that far? I'm flattered. ;) Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| thwill Guru Joined: 16/09/2019 Location: United KingdomPosts: 4047 |
Why do you think I sent you a PCB to build first? Then I can just cruise along on your coat tails. Best wishes, Tom Game*Mite, CMM2 Welcome Tape, Creaky old text adventures |
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| thwill Guru Joined: 16/09/2019 Location: United KingdomPosts: 4047 |
Hi folks, If anyone has ordered NEW AliExpress/eBay "NES/SNES" gamepads or "Atari" joysticks other than those described previously in this thread then I'd appreciate hearing about your experience and having photos of them front and back so I can attempt to document the situation. Best wishes, Tom Edited 2022-08-03 20:32 by thwill Game*Mite, CMM2 Welcome Tape, Creaky old text adventures |
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Rickard5 Guru Joined: 31/03/2022 Location: United StatesPosts: 463 |
WOW ohh WOW PLEASE point me to the £5.00 one, I am the Cheapest BROKE Guy there is, but I'd much rather pay $5 once and one shipping charge to find the USA Part and not have to guess at ordering the $1.50 part 4 times and pay shipping 4 times all the time banging my head against the wall :) THE Farnell number works really well, it converts directly to NEWARK and ELEMENT 14 Thank you Love You Guys I may be Vulgar, but , while I'm poor, I'm Industrious, Honest, and trustworthy! I Know my Place |
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| thwill Guru Joined: 16/09/2019 Location: United KingdomPosts: 4047 |
Just a line to say I am making progress on an example library of PicoGAME controller support code: https://github.com/thwill1000/pico-game-vga/blob/main/software/src/PicoGAME.inc Ignore the material about reading the controller configuration out of a .ini file, @Martin H. has talked me out of that. Instead see the function poll_for_controller$(), the expectation is that one of the first things a PicoGAME compatible program would do is: ' Determine default control mechanism by asking the user to press START ' or FIRE on the controller connected to Port A, or SPACE on the keyboard. Print "Press START, FIRE or SPACE" DIM ctrl$ = poll_for_controller$() When this returns ctrl$ will be set to "nes", "atari" or "keys" as appropriate to the user's response. With this information the program can then support the Port A controller being used to navigate its own menu system to allow finer grain control, such as selecting which keys or switching between NES and SNES controllers, and also to allow the Player 2 (Port B) controller to be configured. Note also how this library is structured so you can use the CALL command and function to seamlessly initialise and read the selected controller: CALL ctrl$ + "_init", PORT_A% result% = CALL(ctrl$ + "_read%", PORT_A%) EDIT: @Volhout except for your own edutainment I'm not sure further work on S/NES PIO code is warranted, the performance reading it in pure MMBasic appears to be more than adequate. YMMV, Tom Edited 2022-08-04 19:23 by thwill Game*Mite, CMM2 Welcome Tape, Creaky old text adventures |
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| Martin H. Guru Joined: 04/06/2022 Location: GermanyPosts: 1115 |
a little ot...  I soldered my 3d printed joystick yesterday. It's just not entirely clear to me, which pin should be the corresponding one. Plus 3.3 V (7) or ground (8)  'no comment |
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