Since you can see that the buttons work when using jstest, we can be sure that the driver and hardware wiring is working. That is good!

I suspect that EmulationStation needs to be configured for the ControlBlock controllers: You can either remove the ES config file from the commands line (sudo rm /opt/retropie/configs/all/emulationstation\es_input.cfg) or you can re-configure the input from within EmulationStation from the menu.

An ATTiny85 is driving the LED. The LED is connected in series with a 220 Ohm resistor directly to a GPIO pin and GND.

I can confirm that the information about the resistor is correct.

@x5PUDx If you already have the latest Retropie version build, then doing an update using "update all installed packages" should not mess up anything.

@petrockblog Sorry, forum rules prohibit that. Just do a simple google search for them and options come up. I do love your ControlBlock though, thanks for making it!

@caver01 Thanks for you help. This definitely has shed some light on this for me!

@Radioman673 So that we can all learn from your experience, what is exactly wrong with the install at "petrockblog"? I followed it to the letter and I had no issue with it...

Glad to hear that you figured it out!

@ortsac
Damn, I don't want to strip the wires to my SNES controllers or take apart my console to make a panel.

I'll be using an HD CRT TV. It'd be if a more straightforward adapter was invented. But oh well.

Thanks for the help.

@petrockblog That will greatly help a lot of us who would want to see this working. Thanks.

Glad to hear that it is working for you now.

Powerblock works fine on Retropie/Raspbian. Open/LibreELEC are embedded systems so if it doesnt work OOTB, it is generaly a pain in the ass to make it work. The support for it should be given by them if they are interested.

Awesome! Thanks for the reply! Keep up the good work!

@skcradle Glad to hear.

As described at https://github.com/petrockblog/SNESDev-RPi#button-polling a shutdown command is issued when the button on the GPIO adapter is pressed five times. Maybe that signal is somehow inserted into the RPi when you connect your controller(s).
The dmesgcommand might give you some more insights into what the shutdown is causing.

You are right, the two pads that are nearest to the 1 must be soldered.

From measuring the USB power drain from the power supply (inline USB measuring) the ControlBlock2 is pulling 5.06V and 0.421A when the yellow warning is in the upper right corner. I didn't measure the 5V output from the Pi or ControlBlock itself as I don't have my multimeter here.