Quick Start

This breakout has no chip and no code of its own. It gives you ten of the lines of a USB-C plug on 2.54 mm pins, so getting started means soldering the headers, adding one resistor and wiring the pins to your project.

1. Connect the breakout board

The two 5-pin headers come unsoldered. Solder them on to use the board on a breadboard, or wire straight to the pads.

CC1 has no pull-down on the board. A USB-C charger or port switches VUSB on only when it sees a 5.1 kΩ resistor from CC1 to GND, so fit that resistor, or connect a USB PD controller to CC1 instead. The board's 5 V maximum on VUSB applies to that route too: set the PD controller to request 5 V only, never a higher voltage.

Then wire the pins to your project. Each pin carries the line printed beside it on the board:

Breakout pin	Connect it to
GND	Ground of your circuit
VUSB	The supply input of your circuit. It carries what the USB-C port supplies.
CC1	GND through a 5.1 kΩ resistor, or a USB PD controller set to request 5 V only
D+, D-	The D+ and D- lines of your USB circuit
SBU1, TX1+, TX1-, RX1+, RX1-	The matching lines of your circuit, if your design uses them

Check that your circuit takes the port's supply before you plug the board in. VUSB connects straight to the plug, with no regulator or protection. The connector is rated for 5 V, and for 3 A on VBUS.

2. Check the result

Plug the breakout into the USB-C port and measure between VUSB and GND with a multimeter. With the resistor on CC1, the port switches VUSB on and the meter shows the port's supply voltage.

3. If it does not work

Continue with Troubleshooting and measure again after each change.