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PiCOLECO - a DIY multicart for Colecovision


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58 minutes ago, aotta said:

Are you sure the diode was soldered in right direction?

So super major rookie mistake. Turns out the diode wasn't fully soldered to the pad. I removed it and resoldered it while giving it a bit more length and now it works fine. I did this on both units I created and they both work fine now. 

 

The lesson: check and double check all solders. Reflow everything just to make sure.

 

Thanks so much for your patience and help. 

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  • 2 weeks later...

I'm just tryin' to figure out where I would get the purple Pi clone online. I did set up an account with the PCB company and they've got the Gerber files, but I still need that Pi. Maybe next month I'll order all that stuff; I'm squeezed for cash at the moment so it won't be happening now.

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13 minutes ago, Jess Ragan said:

I'm just tryin' to figure out where I would get the purple Pi clone online. I did set up an account with the PCB company and they've got the Gerber files, but I still need that Pi. Maybe next month I'll order all that stuff; I'm squeezed for cash at the moment so it won't be happening now.

I got mine from AliExpress (China) since I was in no rush. Took about a week to get here to the US. Paid $2.00 USD each. Ordered 10 lol

 

Check it out! 

https://a.aliexpress.com/_mPkeALa

 

Scott

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Only issue I have run into on some rom files is that after selecting some games from the menu, the screen is garbled or black...  a quick press of reset, the game comes up fine. Plays fine. This happens with multiple PiColecos and multiple CVs. Donkey Kong is one of the game ROMs that exhibit this. Not all games do this but the games that do are the same across the machines and PiCs.

 

Not sure if anyone else has seen this. Feels like a ROM issue but will do some testing over the weekend.

 

Wondering if anyone else has seen this?

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On 8/21/2024 at 10:51 PM, MMarcoux66 said:

Only issue I have run into on some rom files is that after selecting some games from the menu, the screen is garbled or black...  a quick press of reset, the game comes up fine. Plays fine. This happens with multiple PiColecos and multiple CVs. Donkey Kong is one of the game ROMs that exhibit this. Not all games do this but the games that do are the same across the machines and PiCs.

 

Not sure if anyone else has seen this. Feels like a ROM issue but will do some testing over the weekend.

 

Wondering if anyone else has seen this?

 

I've seen it, and not with the PiColeco. In using a BackBit cartridge it is the same for some games. To mediate this an internal reset jumper wire can be added in the case of that cart to automate the reset necessary to start those games, but I didn't bother adding the wire and am just used to pressing reset on the console to get the game started.

 

In short, it's not a ROM issue.

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2 hours ago, eightbit said:

 

I've seen it, and not with the PiColeco. In using a BackBit cartridge it is the same for some games. To mediate this an internal reset jumper wire can be added in the case of that cart to automate the reset necessary to start those games, but I didn't bother adding the wire and am just used to pressing reset on the console to get the game started.

 

In short, it's not a ROM issue.

Cool, thanks for confirming that you are seeing it. It seems to be the same ROMs every time, but a simple press of the CV reset button solves it. Just wanted to make sure my soldering is good :). I am building a few for friends and may sell a few, so wanted to make sure that I documented the issue or "feature" :). Still impressed with the cart even with its limitations for the cost.

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On 6/10/2024 at 11:53 AM, mytek said:

I totally agree, and also use JLCPCB for all my projects, but make sure that anyone else that's interested in my projects are free to choose whoever they want, by always providing the gerbers for download. And JLC always has a cheaper option than PCBway.

 

Quite frankly I'm getting rather tired of all the YouTuber promotion of PCBway. Seems like everyone and their uncle are flying their flag in order to earn a few more $$$.

I say find a Radio Shack and do it old school with some etching material and a copper board.

 

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Just made my cart too.

Works perfectly.

However, one thing: Does anyone have the same issue that the hole for the tactile switch isn't centered over the switch itself?

In my case, the hole is some 2-3mm down-left from the switch.

image.thumb.png.39792fcc04a99dc67af8a0fe6aad1b8f.png

image.thumb.png.0d5e6535ef131c92e153c4d865ddbbff.png

 

 

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8 minutes ago, Marek said:

Just made my cart too.

Works perfectly.

However, one thing: Does anyone have the same issue that the hole for the tactile switch isn't centered over the switch itself?

In my case, the hole is some 2-3mm down-left from the switch.

image.thumb.png.39792fcc04a99dc67af8a0fe6aad1b8f.png

image.thumb.png.0d5e6535ef131c92e153c4d865ddbbff.png

 

 

Yup the hole is definitely off center. I ended up soldering the button in a slight angle so that it's centered in the hole. 

20240904_111448.jpg

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10 minutes ago, aotta said:

Wasn't simpler to enlarge the hole? 

Anyway, is that the shell i published on GitHub? 

Yeah it would be simpler. But the print of the case was so beautiful, I didn't want to risk damaging it 🤣

 

Yup that's the shell you published on GitHub. No complaints here though, I appreciate your work 👍🏿

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2 minutes ago, cscotty said:

Yeah it would be simpler. But the print of the case was so beautiful, I didn't want to risk damaging it 🤣

 

Yup that's the shell you published on GitHub. No complaints here though, I appreciate your work 👍🏿

No you're right... i just noticed that i had to scratch a little the cover of my shell too! i completely forgot about it😂

i'll move tho hole a bit and i'll update the github model in few minutes, if you want to reprint to top of the shell, and for future users!

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7 minutes ago, aotta said:

No you're right... i just noticed that i had to scratch a little the cover of my shell too! i completely forgot about it😂

i'll move tho hole a bit and i'll update the github model in few minutes, if you want to reprint to top of the shell, and for future users!

Thanks so much!

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5 minutes ago, cscotty said:

I don't have a 3D printer so I'll have to order from online. Looking to buy one though. How long would something like this take to print? 

I bought an Entina Tina2 a couple of years ago, it's cheap and works fine for pieces under 10x12cm, size that cover most cartridge shells i designed, except for the Odyssey2 and Fairchild that are bigger!! 😁 

Anyway, it's needed about 4 hours for printing the top of the Coleco shell with my Tina, if that's was your question

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22 minutes ago, cscotty said:

I don't have a 3D printer so I'll have to order from online. Looking to buy one though. How long would something like this take to print? 

On my Bambu Carbon printer, it takes around an hour and a half to print both top and bottom at the same time.

 

If you are in the US, I would be happy to see if we can work something out if you need a shell.

 

I will report back on the button location change. I am building a bunch of these for friends and others that would like one.

Edited by MMarcoux66
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