Ran through tests for all my games on PS4. Won’t clog the thread up with all the images, but have looked at how long until input is displayed (as a very clear marker) for SFV SF4 DOA5LR BBCPE GGXrd Sign and Revelator Injustice and MKX.
I wired up 2 undamned usb decoder board to a pic that i programed that will light up a led indicating which controller pressed the button first. I should add a display to show the delay.
That’s a setup more for raw performance, right? Forces a frequent polling rate etc.?
If you want to actually rank PCBs then there is no better way than raw performance. That’s an actual A vs A comparison.
What about the updated Hori’s (the one’s with the 3x PS3/PS4/PC switch) … are they the same as the other big group of Hori V’s or are they simply not tested yet?
There is no “best way”. There are simply measures that answer questions. Measuring stick on console gives a good indication of performance in a real use case. The forced low polling rates etc. get closer to the raw potential of the PCB, ie. up to where you can get with firmware updates and such, but don’t reflect real world use. Ideally both should get measured and contrasted with each other.
To use USB protocol and logical analyzer to measure data rate on three sticks.
http://www.ellisys.com/products/usbex200/
http://www.zeroplus.com.tw/logic-analyzer_en/logic_analyzers.php
On PS4, Hori/Madcatz/Brook UFB almost have the same inputting speed.
But in 360 mode, test and compare two sticks between Madacatz and UFB on SFV of PC Version.
Brook UFB is faster than Madcatz 360 stick.
With all due respect and a proud owner of Brook UFB, as I want it to out perform every PCB, you are comparing it with a stick that is already in C- category. While it is good to know that UFB is performing v well against a mad catz fight stick pro, please test it against better ones as well. Thanks.
https://www.arduino.cc/en/Main/ArduinoUSBHostShield
Has anyone considered using something like this? Seems like it should be easy enough to send a signal to a button and then poll how much time it takes to come back and cheap. I’ve bought a similar board and will try something (if I can work out the programming).
Does the brook universal fight board and the usb converter sticks have the same amount of latency?
If it did, it would be weird, even ignoring the fact that there’s another PCB with its own input lag in the chain when you use a converter. Well, does anyone have measured data? 
Every device you add to the “chain” will add its own latency. As every devices has its own processing.
Even lighting fast analog tech with zero processing incurs some latency.
So I got my rap 4 kai silent and on PC it seems there is no delay issues in comparison to my SFxT pro. In fact it feels like its better. On PS4 I cannot find a noticable difference between it and the DS4. Though the only game I have to test is DoA5LR.
USB host shield still hasn’t arrived. I’ve been messing around with input lag for games, but felt it’s probably clogging up this thread, so have put it into a separate thread.
One idea that I’ve had. It wouldn’t be too hard to program an arduino to send out signals a set time period apart. E.g. if stick A is meant to lag behind stick B by 0.5 frames, a simple sketch like
write stick A button on
delay 8 milliseconds
write stick B button on
and see if they consistently clash. If not, fine tuning of the delay period should allow a difference between two sticks to be found. Doesn’t get us any close to absolute values, but would allow verification of the difference in relative speed between two sticks.
Anyone test the Brook converters yet with the latest firmware? Zippy said it reduced latency.
yes, it does
I have been using the brook converter on my xbox one with my PS4 Hori RAPV and i cant detect any lag, very happy with it compared to the cronus max.
I figured it did, I was just wondering how much compared to the previous test (it was around 14.5ms if I remember right).
Can you test and add this- Brook Universal Fighting Board?
Why don’t you test it yourself?