It’s definitely a pcb failure put a wire from teensy ground wire to the down pin and it recognised the input instantly.

Just checked resistance and I have 0.2-0.5 ohms on the down circuit on the pcb. I have multiple points I can check from and they are all reading this.

I’ve put this in hardware as I think it might be a board fault. I’ve running a teensy I’ve wired it up in the order Wermy said on his video. I’ve programmed the teensy with wermys configuration. When running through the programming it will not register my down button. I’ve checked the voltages on th...

After a little advice for what to with the cart reader. I was hoping to use a reader from a ds lite spare board I had but unfortunately I broke it when trying to remove it. I’ve found ones on Aliexpress but don’t really want to be spending £8/9 on one. Was thinking of ordering one of these from a gb...

Nice one thanks, I’ve followed wermys parts list fairly strictly. I have a teensy but I have the pi zero w. So will still need the hub. Thanks for your help.

Might as well make my first question a real nooby one. I’ve watched Wermy’s videos multiple times and understand it all apart from the usb hub. Is it just there as a way to have the option of a wireless dongle or does it d something like regulate/distribute power/data from the other ports? I’m await...