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Is the schematic for the MP07-IONA available?

hows the schematic for the filter board going? i would be interested in it/willing to help with it

I originally had no intention of adding JVS IO support when I designed the board. If I were, it would make the board a few inches wider to add the JVS power plug, RS485 port, and some switch to go between Jamma and JVS mode. Im not sure if its worth the effort, but I wouldnt entirely rule it...

There is no upscaling. The output resolution will be whatever the input video signal resolution is. Most Jamma boards use the ~240p resolution so the component video will also be 240p from the BA7230LS. If you can find some Jamma game that outputs RGBS in 480p video signal, the BA7230LS can also...

The BA7230LS chip does the component video out and that is NTSC standard, 60Hz. Im not sure if there is a PAL equivalent

thats exactly what I wanted to see. thanks so much!

Im curious what the power draw of the 3.3v, 5v and 12v rails are on a naomi system underload. Im thinking of designing a jvs io board with power and Id like to get an idea how much headroom it actually needs. From what Ive read online, the naomi sun psu is probably at least double what the naomi...

So good news is I got usb bluetooth working with the supergun, and a ps4 controller working games. the bad news is that its not user friendly to pair, and sometimes ps4 controllers dont connect properly. I talked to the guys that wrote the teensy usb host bluetooth library and he said that they...

Currently the known issues that Im having with the board are PS3 controllers can sometimes lock up the USB ports when plugging in. Mostly happens when one controller is already plugged in and a PS3 controller is plugged in as player 2. The strange thing is that ps3 controllers work fine when...

I might sell a few. Buts its also part of the reason I want to release the designs and software to be open source, so Im not the only person making them and selling them. I also wish I had a case of some sort, to feel more like an actual product. I just finished programming using PS4 and...

Ive been working on my own supergun design for a few years and its finally coming together. I'm calling it the Winchester and the goal is to create a supergun that is compact and functional by itself. The features are: Component video encoding LM1881 sync cleaning THS7376 video...

Hey all, Im working on a supergun design that uses a teensy 4.1 microcontroller. I want the button presses to come from the teensy but the pins are not 5v tolerant. Would using a level shifter, transistor or an optocoupler make the most sense? Or something else entirely?

If I wanted to use a microcontroller like an arduino or a teensy for my jamma inputs, would I need a level shifter up +3.3v to +5v?

Hey all, I am in the process of designing a supergun and I was wondering if its worth it to add a LM1881 on the sync signal? Or is it only used when you want to strip the sync signal from a video signal?

Hi frank, Im mainly asking because on the datasheet for the THS7374, pin 1 is for the SD composite in. Ive been prototyping using the CXA2075 for the last year or so, Im fairly familiar to what it needs to get it to work.

Im designing a supergun that uses the CXA2075 for composite and I want to use the THS7374 amp. Does anyone know if I need to use a pullup or pulldown resistor when connecting the CXA2075 composite out to the THS7374 CVBS Input pin?