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A project log for Game Boy Cartridge plus Programmer

not the first cartridge on this platform

davedarkodavedarko 02/24/2017 at 09:558 Comments

[UPDATE] silkscreen and the upside-down side of things

An after midnight board, how classic [don't] [just] [don't]. I could have breadboarded this as well first, to check if it actually works. Damn. Now I'm hesitant to reorder, I should try it first. - Wait, what am I talking about?


This is a shield for the Wemos D1 mini, that features a TXB104D, a level-shifter with auto detection for direction. The picture seen here is the corrected version, after ordering the failed PCB. By accident I've mirrored the game boy connecter, because I tried to rotate it in my head. This version has numbered pins, to make it more easy to check. Otherwise I'm pretty proud of it. I can still use it as a breakout board for the TXB104D and check if the connector gets a clean cutout, even use the Wemos D1 mini to talk to 5V stuff.


There are "rumours" that the ESP is 5V tolerant and the Game Boy might be happy with 3V3 volts of the ESP, but I'm not eager to try. By rumours I mean, I thought I have read that somewhere.



Here is that ear worm you're trying to get rid off. Gremlins and ear worms, classic Dave.



Discussions

de∫hipu wrote 07/04/2017 at 17:06 point

I recently re-discovered the "view from above/view from below" button in Fritzing, which greatly helps with this kind of problems. Now I just have to remember to use it.

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davedarko wrote 07/04/2017 at 18:15 point

Most of the time I use OSHparks generated preview for that, but a button seems more timesaving :)

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davedarko wrote 07/04/2017 at 13:38 point

reordered, muahaha.

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Dave's Dev Lab wrote 02/24/2017 at 23:07 point

good rule! don't order after midnight, or if you've had more than 3 beers!

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j0z0r pwn4tr0n wrote 02/24/2017 at 17:16 point

The title alone put that song into my head... I thought maybe you just coincidentally named the project log after a terrible song without realizing it, but no, scrolling down reveals the video... Making it even more stuck in my head

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davedarko wrote 02/24/2017 at 18:13 point

the title really came first, but the idea to post that video came right after that - I'm an admirer of her early works :D 

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davedarko wrote 02/24/2017 at 10:08 point

Seems like it still is upside down :D oh well...

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davedarko wrote 02/24/2017 at 12:29 point

it has to stay this way, routing it upside - down is just punk... gotta add some more silkscreen.

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