Quick Start
This breakout has no chip, no firmware and no library. It gives you the pins of a USB-C socket, so getting started means soldering the header, choosing a cable and wiring the pins to your project.
1. Connect the breakout board
The eight header pins come unsoldered. Solder them to the bottom of the board, the side opposite the socket. The socket then faces up and the board drops into a breadboard.
Pick the cable that fits your power source, because the board has no resistors on CC1 and CC2:
- USB-A to USB-C cable. It supplies 5 V without any extra parts.
- USB-C charger, or a USB-C to USB-C cable. A USB-C power source checks the CC lines before it turns the 5 V on. Connect a 5.1 kΩ resistor from CC1 to GND and a second one from CC2 to GND.
Then wire the pins to your project:
| Breakout pin | Connect it to |
|---|---|
GND | Ground of your circuit |
VUSB | The 5 V input of your circuit. This is the 5 V line from the cable. |
CC1, CC2 | GND through a 5.1 kΩ resistor each, when you use a USB-C charger or a USB-C to USB-C cable |
D+, D- | The USB 2.0 data lines of your USB chip or controller |
SBU1, SBU2 | Nothing, unless your design uses a USB-C mode that needs the sideband lines |
Check that your circuit accepts 5 V before you plug in the cable. The board passes VUSB straight through and has no regulator or protection.
2. Check the result
Plug in the cable and measure between VUSB and GND. You should read about 5 V.
3. If it does not work
Continue with Troubleshooting and measure again after each change.