Hello Paul, I have taken on a small project of adding a USB-C port to a cup holder in my car using the 1568-1958-ND -Sparkfun USB-C Breakout Board and cannot get it to provide the 5V, 3A output for charging a phone. I’ve tried several methods including the 5.1K ohm resistors, and also a DC-DC 12V in/ 5V 3A output at the USB-C board, and the phone won’t recognize the power source. Can you offer some advice…I’m a novice at best.
