Acidmods

Console Modding------ ( Here you can talk about your favorite Consoles ) => Xbox One => Xbox One controllers/Xbox One Rapid fire Controllers => Topic started by: xmy on April 09, 2022, 05:08:50 PM

Title: 1708/1914 expansion port voltage/gnd pins
Post by: xmy on April 09, 2022, 05:08:50 PM

Hello there,

i hope I'm at the right spot. :)


I want to add a gyroscope sensor to my controller. Yeah, hear me out..

Reason for that is mainly because I use the Cemu Wii U emulator to play Breath of the Wild and you can't use the gyro sensor in game as the controller has none.

The general idea is to create a small pcb with an ESP8266-01 and some gyroscope module.

The micro controller would connect to WiFi, an application would handle the gyro data and push it into the emulator.

Of course, the esp needs power and my idea is to buy a male expansion port connector from Ebay/Aliexpress and grab the power from there.

Since the adapter schematic is completely protected and I have no tools to find out which pin does what, I was hoping that someone in this forum could point me into some directions or at least some keywords to search for.
After a long time of googling, I eventually landed here.  :laughing:

I don't need a fully reversed specification. Just the power (with voltage) and gnd pin.

Does someone have an idea?

Thanks in advance!

/edit:

I saw a PCB from some expansion hardware, but can't find it anymore right away.
I think I could at least guess where the power pin is, as this trace is bigger than the other ones. But still can't measure the voltage or find the gnd pin.

Title: Re: 1708/1914 expansion port voltage/gnd pins
Post by: RDC on April 10, 2022, 05:44:51 AM

Schematic for the 1708 is in that thread - https://acidmods.com/forum/index.php/topic,43981.0.html

Pins 1 and 12 are Ground, and then pin 6 is 3.3v on that Expansion connector. It's the same on all versions of the controller.

Title: Re: 1708/1914 expansion port voltage/gnd pins
Post by: xmy on April 10, 2022, 06:09:22 AM

Thanks for the quick response!

Yeah I looked into all of them first, but I wasn't sure how much I can read out of them.
Taking a look onto this image "1708 MCU BOARD TOP" from https://acidmods.com/forum/index.php/topic,43981.0.html I see that the socket seems to be called J8?

As I couldn't find a description about it, I created this post.
Looking into the post again I could find the schematic for the J8!

But this was very helpful. Being 3.3v, I can already connect the ESP with out any LDO. Nice!
Thank you very much. :)